Baixar arquivo - Laboratório de Genética Animal
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Baixar arquivo - Laboratório de Genética Animal
A checklist of chromosome numbers and karyotypes of Amazonian freshwater jishes Jorge Ivan Rebelo PORTO (l), Eliana FELDBERG Céleste Mutuko NAKAYAMA (l), José das Neves FALCAO (2) (1), RÉSUMÉ CATALOGUE DES NOMBRES DE CHROMOSOMES ET CARYOTYPES DES POISSONS DU BASSIN AMAZONIEN Une liste des nombres de chromosomes de 211 espèces de poissons du bassin amazonien est présenfée. Ces espèces, appartenant à 5 ordres, sont caractérisées par une grande variabilité du nombre de chromosomes (2n = 22 à 2n = 134), par la présence de chromosomes sexuels et de polymorphisme chromosomique chez certaines espèces, et enfin par une grande spécificité des bandes C et des sites des régions de l’organisafeur du nucléole. MOTS CLÉS : Chromosomes - Poissons - Eaux douces - Bassin amazonien. ABSTRACT A CHECKLIST OF CHROMOSOME NUMBERS AND KARYOTYPES OF AMAZONIAN FRESHWATER FISHES A checklist of chromosome numbers of Amazonian freshlvater fishes is presented. 211 nominal species belonging fo 5 orders have had their haploidldiploid number listed. These species are characterized by a high karyotypic diversity including a wide chromosome number range (2n=22 to 2n=134), d i ff erent sex chromosomal mechanisms, chromosomal polymorphisms and nearly always a species-specific pattern of C-banding and nucleolar organizer regions . KEY WORDS : Chromosomes - Fishes - Freshwaters - Amazon Basin. RESUMEN LISTA DE LOS NUMEROS CROMOS~MICOS Y CARIOTIPOS DE PECES AMAZONICOS DE AGUA DULCE Es presentada una lista con 10s datos cromo&micos de peces de la cuenca amazonica. determinandose por 10 menos a 5 ordenes ya fueron estudiados citogeneticamente, haploideldiploide. La variaci0n del numero diploide va desde 2n=22 hasfa 2n=134. mecanismos cromo&micos sexuales y polimorfismos cromoscimicos en algunas especies, siempre especie-specificos de la banda-C y de las regiones organizadoras del nucleolo. PALABRAS ~LAVES : Cromosomos - (1) Instituto National CEP 69083. (2) Unioersidade CEP 69000. Peces - da Pesquisas da Amazônia, Agua dulce - 211 especies pertenecienfes su numero cromosomico Tanbien fueron observado seguido de padrones casi Cuenca amazonica. Coordenaçüo de Pesquisas em Biologia Aqudtica, Cx Postal 478, Manaus-AM, Brasil, do Amazonas, Instituto Rerr. Hydrobiol. trop. 25 (4) : 2X7-299(1992). de Biociências, Deparfamenio de Biologia, Estrada do Contorno S/N, Manaus-AM, Brasil, 288 J. 1. R. PORTO, E. FELDBERG, C. M. NAKAYAMA, INTRODUCTION In the neotropics, chromosomal data have contributed t.o t.he studies of the biology, genetics and syst.ematics of fishes. This is particularly true with respect to species characterization and diagnosis (BERTOLLO, 1978; ALMEIDA-TOLEDO, 1978), detection of inter and intraspecific polymorphism (GruLIANO-CAETANO and BERTOLLO, 1988; OLIVEIRA et al., 199Oa), data on sex chromosome systems (MoREIRA FILHO et al., 1980; GALETTI Jr. et al., 1981; BERTOLLO et al., 1983; GALETTI Jr. and FORESTI, 1986 ; FELDBERG et al., 1987 ; FALCÂO, 1988), supernumerary chromosomes (FALCAO et al., 1984 ; PAUL~, 1985; VENERE and GALETTI Jr., 1985; OLIVEIRA et al., 1988b; FORESTI ef al., 1989; ERDTMAN et al., 1990) and natural triplody (ALMEIDA-TOLEDO et al., 1985; VENERE and GALETTI Jr., 1985; GIULIANOCAETANO and BERTOLLO, 1990). Al1 of t.he above mentioned findings are important for the understanding of flsh or even animal chromosomal evolution. Checklists cont.aining chromosome data of fish have been published since 1971 (GYLDENHOLM and SCHEEL, 1971; CHIARELLI and CAPANNA, 1973; DENTON, 1973; PARK, 1974; OJIMA et al., 1976; GOLD ef al., 1980; SOLA et al., 1981 ; OLIVEIRA et al., 1988a). SOLA et al. (1981) stated that the elaboration of flsh chromosome lists is important. because they allow for easy access to condensed information and identification of the cytogenet.ic characters important for the elaboration of evolutionary and phylogenetic models. The Amazon basin is an excellent field for ichthyogenetic study (ALMEIDA-VAL et al., 1991) and we believe that a checklist of Amazonian fish chromosome data Will c.ontribute to a better understanding of the diversit,y of fish species. CYTOGENETIC FISHES FEATURES OF AMAZONIAN In 1988, OLIVEIRA et al. listed the chromosome formular of 433 neotropical fish species. In this study t.he origin of 55 O,&of the fish is unknown, some of them undoubtedly obtained from aquarium dealers. In elaborat.ing our list, we attempted to identify, among the species of unknown origin, the Amazonian freshwater species, and we updated the taxonomit status of many species. Thus, we have listed species belonging to the Amazon basin based on the compilation of OLIVEIRA et al. (OP. cif.), and new data obtained by us (Table 1). For the taxonomy and origin of t.he species with diploid/haploid numbers Heu. Hydrobiol. irop. 2.5 (4) : .ZV-299 (1992). J. N. FALCAO already determined, several papers were consult.ed : GOLDSTEIN (1973), GÉRY (1977), NIJSSEN and IsBRUCKER (1980), KULLANDER (1983, 1986), ORTEGA and VARI (1986), GOULDING et al. (1988), BURGESS (1989). The classification of the higher taxa of the listed species is arranged according to GREENWOOD et al. (1966) and LAUDER and LIEM (1983) with the exception of the Serrasalmidae which is considered at a family level, according to GÉRY (1977). 211’ nominal species belonging to t,he Amazonian ichthyofauna have had their diploid/haploid number determined. However, few of these species have had their karyotypes described. These listed species correspond to 49 o/. of the neotropical fish species listed by OLIVEIRA et al. (OP. cit.). We also det,ected that a vast amount of cytogenetic data is available in abstracts of Brazilian scientiflc meetings and others not readily available sources. Diploid numbers Diploid numbers (2n) of Amazonian fishes range unifasciatus) to widely : 2n = 22 (Nannostomus 2n = 134 (Corydoras aeneus). Also, species differ in having single or multiple nucleolar organizer regions (NORs) as well as different sex chromosomal mechanisms, including multiple systems. This karyotype diversity is apparently c.orrelated with the rich specific diversity of Amazonian ichthyofauna. Karyologicaly, the characiforms are the most studied fish group of the Amazon, followed by siluriforms (including the gymnotoids - electric fishes), perciforms (cichlids) and then on a minor scale, osteoglossiforms (bonytongue fishes) and lepidosireniforms (lungfishes). In the characiforms, the diploid numbers vary from 2n = 22 to 2n = 102. However, in the families Anostomidae, Curimatidae, Prochilodidae, Hemiodidae and Chilodidae the chromosome numbers and karyotype morphology are very similar, usually with 2n = 54, and met,a-submetacentric (M-SM) chromosomes in their karyotypes and single NORs. On the other hand, there are karyotypicaly divergent. families such as the Erythrinidae, Lebiasinidae, Characidae and Serrasalmidae each of which shows diversification in t.heir diploid numbers, karyotype morphologies and multiple NORs. Erythrinidae, Lebiasinidae, Characidae plus CXenoluciidae are characterized by diploid numbers smaller than 2n = 54 (considered primitive in characiforms). Serrasalmidae, on the other hand, contains species with diploid numbers equal to or great,er than 2n = 54. This cyt.ogenetic feature of serrasalmids (2n = 54) has lead AREFJEV (1989) and PORTO et al. (1989, 1991) to consider them a distinct group at a family level, and not a IURYOTYPES OF AMAZONIAN FRESHWATER FISHES subfamily of Characidae, as postulated by some authors. In the siluriforms, different from characiforms, there are few cytogenetic studies, although this group also has a large number of species in t,he Amazon basin. Diploid numbers of siluriforms vary from 2n=24 to 2n= 134. The available data indicate that they are characterized by high karyotypic diversity, especially the families Callychthyidae (Siluroidei) and Sternopygidae (Gymnotoidei). It should be pointed out t,hat the karyotypic diversity detected in Callichthyidae is relat.ed to gene duplication and/or polyploid event.s (OLIVEIRA et al., op. cif.). In the perciforms, especially the cichlids, the diploid numbers vary from 2n = 38 (n = 19) to 2n = 60. Almost a11species present 2n=48, dominated by subtelo-acrocentic (ST-A) chromosomes, although there atie some different diploid numbers and karyotype morphologies in this group, for example 2n=60 predominating M-SM chromosomes. Finally, in the osteoglossiforms, three species of osteoglossids were karyotyped and their diploid numbers vary from 2n=54 t.o 2n=56. In lepidosireniformes, a single spec.ies was karyotyped and a small diploid number (2n=38) was detected, with enormous chromosomes and an extremely high DNA value. Nucleolar organizer region (NOR) The NOR chromosome data from Amazonian freswater fish families presented in Table 1 makes it, possible to detect three groups in terms of patterns of specific localization of NORs sites : 1) single NORs, 2) multiple NORs, and 3) both single and multiple NORs. In the first group, t.he following families cari be listed : Osteoglossidae, Anostomidae, Curimatidae, Prochilodidae, Hemiodidae, Pimelodidae, Apteronotidae, St.ernopygidae and Cichlidae ; in the second group : Serrasalmidae and Lebiasinidae; and in the third group : Erhythrinidae, Characidae and Callichthyidae. C-banding Most of the species analyzed thus far present Cbands at, or around, the cent.romeres (centrolpericentromeric band). Less frequently they occur at the chromosome tips (telomeric band). Positive C-bands cari also be found associated with NOR regions (in almost a11 of the serrasalmid species) or along chromosome arms (int,erstitial band) or as entirely heterochromatic short or long chromosome arms (particularly the sex chromosomes). Al1 types of CRev. Hydrobiol. trop. 25 (4) : 287-299 (1992). 289 bands cari occur in the same species. Thus, when different species are compared, aimost always a species-speciflc pattern of constitutive heterochromatin distribution is apparent. !3ex chromosomes Based on cytological heteromorphy, heterologous sex chromosomes (ZZ/ZW and XX/XY1Y2 types) have been described for 6 Amazonian species, corresponding to 2.8 0/0 of the total number of species list.ed. The occurrence of t,he same kind of sex chromosome mechanisms (ZZ/ZW) in different geneSemaprochilodus and Eigenmannia) ra (Triporfheus, shows that this kind of heterogamety has evolved several times among the Amazonian Ostariophysi fishes. FALCAO (1988) suggests that in Triporfheus, the W chromosome differenciated through a heterochromatinization process, followed by deletions. J3ibridization and Triplody Artificial crossing has shown that serrasalmids species, Mylossoma durivenfris X Colossoma macropomum and Piaracfus brachypomus X Colossoma macropomum, have a capacity to hybridize even when the taxa belongs to distinct genera (KOSSOWSKI et al., 1983 and NAKAYAWA et al., pers. Comm., respectivelY)In the Amazon basin two cases of natural triploidy SP. and have been reported in fish : Eigenmannia Hopleryfhinus unifaeniafus. In both cases diploid and triploid forms were found. The fertilizat.ion of a nonreduced ovule by a haploid spermatozoon was considered to be the most probable origin of the et af., 1985; triploids observed (ALMEIDA-TOLEDO GIULIANO-CAETANO and BERTOLLO, 1990). CONCLUSION There still are too few cytogenetic data on Amazonian fishes. The lack of published karyograms or metaphase photographs as well as the problem of taxonomie determinat.ion and origin of analyzed material constitute the main problems in the cytogenetic study of Amazonian fishes, especially in the characiforms whose cytogenetic data forms a substantial part of the checklist. Thus, these data must be considered with tare. Considering the existence of approximately 3 000 species in the Amazon Basin and the high karyotypic diversity detected SO far, cyt,ogenetic studies of 290 J. 1. R. PORTO, E. FELDBERG, C. M. NAKAYAMA, Amazonian fishes should be carried out preferably on monophyletic groups of fishes, taking into account their biogeography and the utilization of high resolution chromosome banding. In this way, it Will be possible to determine the karyotypic. characters t,hat better elucidate the taxonomie and evolutionary problems. J. N. FALCAO ACKNOWLEDGEMENTS We thank Dr. James PATTON for his comments on the manuscript and Dr. Michel JÉGU for his French translation. This research was supported by CNPq-Pig, Inpa/SCT, Eletronort.e and Orstom. Manuscrit accepté par le Comité de rédacfion le 15 février 1993 REFERENCES (L,. F.), 1978. - Confribuiçüo à cifogenéfica dos Gymnofoidei (Pisces, Ostariophysi). Tese de Doutorade. Inst.it-uto de Biociêneias, Universidade de Sao Paulo. 128 p. ALSIEIUA-TOLEDO (L. F.), FORESTI (F.) and TOLEDO-FILHO (S.A.), 1981. Constitutive heterochromatin and nucleolus organizer region in the knifefish, Apferonofus albifrons (Pisces, Apteronotidae). Experienfia, 37 : 953954. (L. A. C.), 1988. - As regioes organizadoras de nucléolo na familia Erythrinidae. Res. II Simp. Cifog. Evol. e Aplic. Peixes Neofrop. : 20. BERTOLLO (L. A. C.) and MOREIRA FILHO (O.), 1983. Possivel ocorrência de uma nova espécie no gêner0 Hoplias (Pisces, Erythrinidae) : evidências morfologicas e citogenéticas. 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Smifhsonian Contributions fo Zoology, 437 : 25 p. PARK (E. H.), 1974. - A list of t.he chromosome numhers of flshes. Coll. Rev. Coll. Lib. Arfs & Sciences. Seoul Naf. Uniu., 20 (l-2) : 346-372. PAULS (E.), 1985. - Considerac$es sobre a evoluçtio cromosshmica e sistema de cromossomos supranumerarios em espécies do gènero Prochilodus (Pisces, Prochilodontidae). Tese de Doutorado. Departamento de Ciências Biologicas, Universidade Federal de Sao Carlos, Sao Paulo, Brasil. 156 p. KARYOTYPES OF AMAZONIAN FRESHWATER FISHES PAULS (E.) and BERTOLLO (L.A.C.), 1990. - Distribution of a super numerary chromosome system and aspects of karyotypic evolution in the genus Prochilodus (Pisces, Prochilodontidae). Genetica, 81 : 117-123. Porto (J. 1. R.), 1992. - Estudos citotaxondmicos em peixes da familia Hemiodidae (Ostariophysi, Characiformes). da AmazOnia central. Dissertaçao de Mest,rado. Programa de Pas-Gradua@0 INPA-FUA. Manaus-AM. 103 p. 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Genetica, 54 : 285-328. PORTO (J. 1. R.) and FELDBERG PORTO (J. 1. R.) and FELDBERG (E.), 1992b. - Comparative cytogenet.ic study of the armored catfishes of the genus Hoplosternum (Siluriformes, Callicht.hyidae). Reo. Brasi/. Genet., 15 (2) : 359-367. (E.), NAK.~YAMA (C. 111.)and JÉGU (M.), 1989. - Analise cariotipica na familia Serrasalmidae (Ost,ariophysi, Characiformes) : Aspectos evolutivos. Ciência e Culfzzra (Supl.) 41 : 714. SUZUKI (A.). TAKI (Y.) and URUSHIDO (T.), 1982. - Karyotypes of two species of Arowana, Osteoglossum bicirrhosum and 0. ferreirai. Japan. J. Ichfhyol., 29 (2) : 220-222. (K. W.), 1979. Neotropical Cichlidae. THOM~SON TURNER PORTO (J. 1. R.), FELDBERG (E.), NAKAYAMA (C. M.), M~IA (R. 0.) and JOGU (M.), 1991. - Cyt.otaxonomic analysis in t,he Serrasalmidae (Ostariophysi, Characiformes). Bull. ZOO~. Mus. Univ. Amsterdam (abstracts) : 66. UYENO (T.), 1973. - A comparat.ive study of chromosomes in the teleostean fish order Osteoglossiformes. 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M.), 1989. - Chromosome relationships of somr Neotropical Characiformes of the family Curimatidae. Rro. Brasil. Genet., 12 (1) : 17-25. RAMIREZ-GIL (E. C. B.) and FALCAO (J. @o das regioes organizadoras especies de peixes dos igarapés Res. I Congresso de Inieiaçao 100. SANGUINO N.), 1992. - Caracterizade nucléolos de algumas do municipio de Manaus. Cienfifica do Amazonas : SANTOS (A. F.), FELDBERG (E.) and BERTOLLO (L. A. C.), 1985. Estudos citogenéticos em peixes da regiao amazônica : Bryeon sp (Bryconinae, Characidae). Res. XII Congresso Brasileiro de Zoologia : 173. SCHEEL (J. J.), 1972. - The chromosomes of the third tetras. Trop. Fish Hobbyisf, 20 (4) : 60-65. Reo. Hydrohiol. trop. 25 (4) : 287-299 (1992). neon (B. J.), DIFFOOT (N.), RASCH (EM.), 1992. - The callichthyid catllsh Corydoraas aenezzs is an unresolved diploid-t.etraploid sibling species complex. Zchthyol. Explor. Freshzoaters, 3 (1) : 17-23. (T.), TAKAHASHI (E.) and TAKI (Y.), 1975. Karyotypes of three species of lishes in the order Osteoglossiformes. Chromosome Information Seroice, 18 : 20-22. (A.), 1965. Vergleinchende untersuchungen der chromosomenzahlen bei susswasser teleosteein. Z. ZOO~. Syst. Eool. Forsch. 3 : 47-93. (H.) and FELDRERG (E.), 1992. - Caracteristicas cromossômicas de Callophysus macropterus (Siluriformes, Pimelodidae) da Amazonia Central (Ilha da Marchantaria e Anavilhanas). Res. IV Simp. Citog. Eool. e Aplic. Peixes Neotrop. : 31. Cytotaxonomy of 41 species of Copeia, 4 : 679-691. URUSHIDO PORTO (J. 1. R.), FELDBERG POST 293 TABLE ORDER FAMILY Species I(1) NOR CBA n 2n - 56 27 - 56 56 54 27 27 27 27 27 - 54 54 54 54 54 54 54 54 64 54 54 54 28M+26SM 54M-SM - 50 50 50 20M+22SM&ST 20M+22SM+8ST 20M+22SM+8ST - 54 52 32M+22ST 44MSM+8ST-T 25 24 26 - 26 - Scheel(l973) Scheel (1973) 21 24 - Scheel (1973) Post (1965) 26 16 25 24 26 52 36 32 50 - 2.5 - Scheel(lQ73) 25 - Scheel (1973) 25 25 26 27 - 48 KF numb pair type atm location f P T HSex reference OSTEOGLOSSIFORMES ARAPAIMIDAE Ampaima gigas Urushido et a/. (1975) OSTEOGLOSSIDAE Osteoglossum bicirrhosum 0. bicirrhosum 0. bicirrhosum 0. ferreirai lSM+lST+64A 3ST+53A 2M+4SM+14ST+34A 2 ST,A TEFIM Hinegardner % Rosen (1972) uyeno (1973) Suzuki et a/. (1982) Suzuki et a/. (1982) CHARACIFORMES ANOSTOMIDAE Abramites hypselonotus Anostomus anostomus A. anostomus A. anostomus A. anostomus A. temstzi Leporinuç affinis L. brunneus L. cy/indfiformes 1. friderici L. ortomaculatus L. tigfinus Rhyticdus microlepis Schizodon fasciatus S. fasciatus Schizodon sp. El&!-SM 54M-SM MM-SM 54MsM 54M-SM 32Md2SM 2 M TERM. 12 M TERM. ST ST ST TERM. TERM. TERM. 54M-SM Scheel(lQ73) Hinegardner & Rosen (1972) Scheel(lQ73) Ojima et a/ (1976) Cestari et a/. (1990) Scheel (1973) Venere (1988) Venere & Galetti Jr.(1986b) Venere & Galetti Jr.(1986b) Galetti Jr. et a/. (1991) Venere & Galetti Jr.(1986b) Venere (1988) Bertollo et a/. (1980) Me&ner & Galeti Jr.(i 987) Galatti Jr. et a/. (1991) Venere & Galetti Jr. (1986a) CHAFXIDAE BRYCONINAE Brycon cf.cephalus B. cf. erythropterum B. cf. pesu Santos et a/. (198.5) Santos et a/. (1985) Feldberg et a/., unpubl. CHALCIDIINAE Chalceus macrolepidotus C. macrolepidotus Muramoto et a/. (1968) Ojima et a/. (1976) CHEIRODONTINAE C. troemneri Megalomphodus megalopterus M. megalopterus M. sweglesi Microschemobrycon casiquiare Paracheirodon axelrodi P. axelmdi 1 P. axelrodi P. innesi P. innesi P. innesi P. simulans 2 P. simulans Pristella riddlei P. riddlei Scheel (1973) Post (1965) Scheel & Christensen (1970) Scheel(l973) Lueken & Foerster (1969) Scheel & Christensen (1970) Scheel (1973) Scheel (1973) Schael(i972) Post (1965) Schael (1973) IGUANODECTINAE Iguanodectes spilurus STETHAPRIONINAE Poptella compressa 3 TETRAGONOPTERINAE Bfyconella palidifrons 4 Ctenobrycon aff. hauxwellianus Exodon paradoxus Hemigrammus anales H. erythrozonus Scheel (1973) Scheel(l973) Scheel (1973) Schael(1973) Lueken & Foerster (1989) TABLE 1 (2) H. erythrozonus H. gracilis 5 H. hyanuary H. marginatus H. micropterus H. ocellifer H. ocellifer H. pulcher H. pulcher H. rhodostomus H. aff. rhodostomus H. aff. rodwayi H. aff. schmardae H. aff. schmardae H. stictus s H. stictus H. unilineatus H. vordetwinkleri Hyphessobrycon agulha H. aff. agulha H. belloti H. bentosi bentosi H. aff. copelandi H. erythmstigma 7 H. haraldschultzi H. heterorhabdus H. loretoensis H. peruvianus H. pulchripinnis H. pulchripinnis H. scholzei H. setpae H. serpae H. stictus H. stictus H. tropis Inpaichthys kerri Moenkhausia colle fi M. oligolepis Thayeria boehkei T. obliqua 26 24 25 26 24 19 24 25 25 25 25 26 25 26 24 24 25 24 26 26 26 24 24 24 25 24 25 24 26 25 23 24 25 25 24 48 52 48 52 52 50 52 52 - 26 52 52 52 52 - 27 - 54 - 36 26 23 51 - 54 54 54 56 54 54 54 54 102 56 54 54 54 - 52 48 Scheel(lQ73) Post (1965) Arefjev(l990b) Scheel(l973) Scheel (1973) Post (1965) Scheel (1973) Post (1965) Scheel (1973) Scheel (1973) S&el (1973) Scheel(l973) Scheel (1973) S&el (1973) Soheel8 Christensen Scheel (1973) Scheel (1973) Scheel(l973) Scheel (1973) Scheel (1973) Scheel (1973) Scheel (1973) Scheel (1973) Scheel (1973) Post (1965) Scheel (1973) Scheel(lQ73) Scheel(lQ73) Post (1965) Scheel(l973) Arefjev (199Ob) Post (1965) Scheel (1973) 22M-SMt30ST-A - Gyldenholm & Scheel(lQ71) Scheel (1973) Scheel (1973) Arefjev (1989) Scheel(l973) Scheel (1973) Scheel (1973) Post (1965) 12Mt26SM+14ST-A , (1970) - TRIPORTHEINAE Triportheus albus T. cuiter T. elongatus T. flavus T. pictos 14 6,11 ST SUB,TER X X l-4 i-4 331 ST M,ST TERM. SUB,INT X X X X 6,7 FalCao (1988) FalCao (1988) FalcZio (1988) FalCao (1988) Scheel(l973) CHILODIDAE Chilodus punctatus C. punctatus Scheel (1973) Cestari et a/. (1990) 54M,SM CTENOLUCIIDAE Boulengerella sp Porto et a/., unpubl. CURIMATIDAE Curimata cyprinoides C. knerl C. inornata C. ocellata C. vittata Cutimatella albuma C. meyeri Curimtopsis afl. macdepis (CYT 4 C. aff. macrolepis (CYT B) Cyphocharax cf. spilura Potamorhina altamazonica P. latior P. pristigaster Psectrogaster rutiloides Steindachnerina leuciscus 4lMtlOSM 4OMt12SM+2ST 4OM+14SM 4OMt16SM 42M+12SM 48M+8SM 46M+kSM 2 2 2 2 1 2 2 3 15 4 22 9 14 9 M ST SM SM SM M M TERM. TERM. INTERST. INTERST. TERM. TERM. TERM. 2M+2SM+Q8A 58M+2SM+2ST 42M+12SM 42M+12SM 48M+6SM 2 2 2 2 2 2 10 5 27 16 11 16 M A M !SA M M TERM. TERM. TERM. TERM. TERM. TERM. 1-8 - _ M TERM. 48MSM X X X X X X X X X X X X X X X X X X X X Feldberg et a/. (1992) Felciberg et a/. (1992) Feldberg et a/. (1992) Feldberg et a/. (1992) Feldberg et a/. (1992) Felclberg et a/. (1992) Feldberg et a/. (1992) Scheel (1973) Scheel (1973) Venere & Galetti Jr.(1989) Fekfberg et a/. (in press) FeMberg et a/. (in press) Feklberg et a/. (in press) Feldberg et a/. (1992) Fekiberg et a/. (1992) ERYTHRINIDAE Erythrinus erythrinus Hopleryhtrinus unitaeniatus Bertdlo (1988) Giuliano-Caetano (1986) TABLE H. unitaeniatus H. unitaeniafus (CYT A) (CYT B) H. unitaeniafus (CYT C) H. unitaeniatus (CYT D) H. unitaeniatus (Tryploid) Hoplias malabaricus Hoplias sp. Hoplias sp. 1 (3) 4EM-SM 24 24 24 40 40 48 24 g 48 72 40 41 - 40 50 B 24 27 - - 54 54 54 24M+26SM+4ST 20M+28SM+6ST 24M+24SM+6ST 2 2 2 - 54 50MSMt4ST 2 27 27 27 54 54 54 54 22M+26SM&ST 20M+30SM+4ST 26M+24SMt4ST 26Mt24SMt4S.T 2 2 2 2 21 22 22 18 22 18 23 21 19 15 12 20 11 - 42 34 42 42 27 27 54 54 54 27 31 - 60 54 54 54 54 62 62 62 58 58 58 58 54 54 54 54 58 34 2 46NSMt2ST-A 46NSMt2ST-A 47MSM+lST-A 69MSM+3ST-A 4 3 29MtllSMtlA 30MclOSM MA M MA M-SM INTERST. TERJNT. INTERST. TERM. y2 (M) xx (F) Giuliano-Caetano (1986) Giuliano-Caetano (1986) Giuliano-Caetano (1986) Giuliano-Caetano (1986) Giuliano-Caetano (1986) Berldlo et a/ (1980) Bertdlo et a/ (1983) Bertollo et a/. (1983) Bertollo & Moreira F” (1983) GASTEROPELECIDAE Camegiella stfigata C. strigata Gasteropslscus sternica Scheel (1973) Scheel(1973) Scheel (1973) HEMIODIDAE ANODINAE Anodus elongatus Anodus melanopogon Anodus sp. 26 25 25 ST ST ST TERM. TERM. TERM. Porto (1992) Porto (1992) Porto (1992) TERNI. Porto, unpubl. TERM. TERM. SUBT. TERM. Porto P&o Porto Porto BIVIBRANCHIINAE Argonectes scapularis HEMIODINAE Hemiodus immaculatus H. cf. microlepis H. ocellatus H. unimaculatus 25 15 17 ST SM SM SM (1992) (1992) (1992) (1992) LEBIASINIDAE Copeina guttata Copella amokli (CM A) Copella amokii FVr B) Copella nattereri Nannostomus beckfordi (CYT A) N. bedrfordi (CYT B) N. beckfordi (CYT C) N. erythrurus N. marginatus N. tdfasciatus (CYT A) N. trifasciatus (CYT B) N. trifasciatus (CYT C) N. eques 8 N. harrisonig N. unifasciatus 10 Pyrhulina sp Pyrhulfna sp Scheel (1973) Scheel (1973) Scheel(l973) Scheel (1973) Scheel(l973) Scheel(l973) Arefjev (199Oa) Soheel (1973) Scheel(l973) Scheel(l973) Scheel (1973) Scheel (1973) Arefjev (199Oa) Scheel(l973) Scheel (1973) Oliveira & Fal&o (1992) Sangüino & FalCao (1992) 2M+4OA 34A 2M+2SMt38ST-A 2-4 PRCCHILODIDAE P. nigricans Semaprochilodus insignis S. taeniurus 4OM+14SM 4OM+14SM 4QM+14SM 2 2 2 2 3 3 M M M INTERST. INTERST. INTERST. m Pauls & berIoll0 (1990) Feldberg et a/. (1987) Feldberg et a/. (1987) SERRASALMIDAE Catoprion ment0 Colossoma macropomum 11 C. macropomum C. macropomum C. mawopomum C. maffopomum Metynnis argenteus M. lippincottianus M. schreitmuelleri 12 M. sp. Mylesinus paraschomburgkii Myleus pacu M. rubripinnis M. shomburgkii Mylossoma aureum M. duriventtis M. dutiven tris M. duriventris n.gen. 1 13 18Mt36SM 20Mt34SM 26M+28SM 30M+30SM+2A ‘XIM-SMI~ST 64MSM+8ST-A 40M-SMt18ST-A l-4 14 34 6-12 TERM. TERJNT 814 ST-A ST-A ST-A ST-A ST-A M,SM INTERST. TERM. TERM. TERM. TERM. TERM. 614 612 M,SM ST-A TERM. TERM. 5-9 5-a 42M-SM+16ST-A 54M-SM 5OM-SMt4T 18M+34SM+2A 54M-SM 42M-SM+l GST-A M M 5-8 Porto et a/., unpubl. Scheel(l973) Berlollo et a/. (1980) Kossowski et a/. (1983) Almeida-Toledo et a/ (1987) Nakayama et a/. (1990) Scheel (1973) Arefjev (1989) Ojima et a/. (1976) Porto et a/. (1989;1991) Porto et a/. (1989; 1991) Porto et a/ (1989; 1991) Porto et a/ (1989; 1991) Porto et a/ (1989: 1991) Porto et a/. (1989; 1991) Ojima et a/. (1976) Kossowsld et a/ (1983) Porto et a/. (1969; 1991) Porto et a/ (196% 1991) Piaractus brachypomus Pristobrycon eigenmanni P. serrulatus P. stri0latu.s Pristobrycon sp. P. sp. Pygocentrus nattereri Serïasalmus affuvei S. elongatus S. hollandi S. manuelli S. rhombeus Serrasalmus sp.1 Serrasalmus 4x2 S. spilopleura TABLE 1 (4) 3-6 - M,SM PJl TERM. _ _ _ _ _ ST-A ST-A ST-A ST-A ST-A P P P P P TERM. TERM. TERM. BOM-SMtlOST-A BOM-SMtlOST-A 46M-SMt14ST-A 4OM-SM+20ST-A e-10 67 6-10 8-8 68 612 ST-A P TERM 44M-SMtlGsT-A 44M-SMt16ST-A 46M-SM+12ST-A 46M-SM+14ST-A 44M-SMtWST-A _ 810 _ 4% 610 _ _ _ - ST-A P TERM. ST,A P TERM. ST-A P TERM. 34M+2OSM 44M-SMtl GST-A 44MSMt16ST-A 46M-SM+1 GST-A 48M-SM+1 PST-A x x - x x x x x x - x _ x - _ x x x x x x _ x _ x x x x x _ _ _ - Nakayama et a/. (1990) Porto et a/. (1989; 1991) Porto et a/. (1989; 1991) Porto et a/. (1989; 1991) Nakayama et a/. (1968a) - 54 60 60 62 60 60 60 60 60 64 60 60 58 60 60 - 56 54 Fennocchio Fennocchio & EWlollo (1987) & Bertollo (1987) - 58 Fennocchio & Berlollo (1987) 49 66 60 29 49 23 25 25 23 24 ;t 100 52 54 58 132 58 134 56 98 46 50 46 _ 29 23 - 102 58 74 46 46 60 60 62 62 60 64 66 62 - 58 58 - 52’ 62 TERM. TERM. Nakayama et a/. (1965a) Nakayama et a/. (1986a;b) Nakayama et a/., unpubl. Nakayamaetd(1986,1988b) Muramoto et a/. (1968) Porlo et a/. (1991) Nakayama et a/. (1992) Nakayama et a/. (1992) Nakayama et a/. (198813). Porto et a/. ( 1991) SILURIFORMES SILUROIDEI AGENEIOSIDAE Ageneiosus brevifilis Ageneiosus sp. AUCHENIPTERIDAE Parauchenipierus d. galeatus CALLICHTHYIDAE Brochis splendens 14 B. splendens Callichthys cakhthys C. callichthys C. callichthys Corydoras aeneus 15 C. aeneus Corydoms aeneus C. aeneus 16 C. aeneus C. aeneus C. aeneus C. agassizii C. agassizii C. arcuatus C. arcuatus C. elegans C. elegans C. elegans C. melanistus C. melanistus C. melanistus C. punctatus C. aff. punctatus C. rabauti C. rabauti C. reticulatus C. schwartzi C. schwartzi C. sch wartzi Dianema longibatbis D. longibarbis D. urostriatum 17 D. urostriatum H. littorale H. thoracatum H. ail. thoracatum H. sp. lEM+iESM+20ST+44A 46M-.SMt6ST-A 32Mcl4SM 8MSMt52ST-A 8M+4SMi&T+46A 6MSM+56ST-A 8MSMt52ST-A 30M-SM+34ST-A 8MSM+54ST 4 2 3 SM,ST SM,ST 2 2-3 SM,ST q P P TERM. TERM. Scheel (1973) Oliveira et a/. (1990b) Porto & Feldberg (1992b) TERM. Porto & Feldberg (1968) Porto & Feldberg (1992b) Scheel et a/. (1972) Scheel(l973) Hinegardner & Rosen (1972) Scheel et a/. (1972) Scheel (1973) Turner et a/. (1992) Turner et a/. (1992) Scheel et a/. (1972) Scheel(l973) Sd-ml et af. (1972) Scheel(l973) Scheel et a/. (1972) Scheel(l973) Hinegardner & Rosen (1972) Scheel et a/. (1972) Scheel (1973) Hinegardner & Rosen (1972) Hinegardner & Rosen (1972) SM TERM. A TERM. M TERM. Oliveira (1987) Scheel et a/. (1972) Scheel(l973) Oliveira (1987) Scheel et a/. (1972) Scheel(l973) Oliveira (1987) Hudson (1976) Marcon et a/. (1992) Oliveira et a/. (199Ob) Marccn etal. (1992) Porto & Feldberg (1992b) Porto & Feldberg (1992b) Porto & Feldberg (1992a) Porto & Feklberg (1992a) .sM A ST A A INTERST. TERM. TERM. TERM. TERM MSM TERM. DORADIDAE Opsodoras humeralis Pseudodoras niger SBM-SMST-A Della-Rosa et a/. (1980) Venere (1968) LORICARIIDAE Pterygoplich thys mulfiradia tus Loricaria sp. Della-Rosa Della-Rosa et a/. (1980) et a/. (1980) TABLE 1 (5) PIMELODIDAE 50 Callophysus macrop&rus Pimelodus blochii Pseudoplatystoma fasciatum P. &winum Sorubim lima 58 56 56 56 2 2 2 2 - _ - ST-A ST-A ST-A ST-A p p p p TERM _ _ - - _ - _ _ _ _ _ _ _ _ _ Ftamirez-Gil& Della-Rasa Fennocchii Fennocchio Fennocchii - - _ - Scheel(l973) Feklberg, et & & & 1992 a/. (1980) EWtollo (1992) Bertollo (1992) Bertollo (1992) TRICHOMYCTERIDAE Vandelia cirrhosa 32 GYMNOTOIDEI APTERONOTIDAE Apteronotus albifrons A. albifrons A. albifrons 11 24 24 2 4 SM q Hinegardner & Rosen (1972) Howell(l972) Almeida-Tokdo et a/. (1981) INTERST. GYMNOTIDAE Gymnotus carapo G. carapa G. carapo 42 48 32MSM+lOST-A 34M-SM+14ST-A 36 30 50 4M+2SM+8ST+22A 32MSM+6ST-A 16M+20SM+lOST+4A 52 38M+lOSM+4ST Eigenmannia humboldti Eigenmannia sp. (Triploid) Eigenmannia sp. (Cm-l) 40 46 311 8MSM+32ST-A 20M-SM+26ST-A 12/13M-SM+1&2OST-A 2 3 2 3 4 4 M-SM M-SM M-SM P P P TERM. TERM. TERM. Eigenmannia sp. (CYT-2) & W8M-SM+22/24ST-A 2 11 ST-A 9 INTERST. Eigenmannia sp. (Cm-l) 31/ El 1lHPM-SM+1 WOST-A 2 4 M-SM P TERM. 1 PWSM+18/20ST-A 2 4 M-SM P TERM. 3”o 12M-SM+18ST-A 14M-SM+14ST-A 17M-SM+2lST-A (F) 16M-SM+22ST-A (M) mA-SM 2 2 2 2 2 4 3 6 6 1 M-SM ST-A M-SM M-SM M-SM P q P P 9 TERM. TERM. TERM. TERM. INTERST. Foresti et a/. (1984) Foresti et a/. (1984) Hinegardner & Rosen (1972) 19 HYPOPOMIDAE Hypopomus brevirostris H. artedi Hypopigus lepturus Almeida-Toledo (1978) Oliveira ef a/. (1988a) Almeida-Toledo (1978) RHAMPHICHTHYDAE Ramphichthys cf. pantherinus Almeida-Toledo (1978) Foresti (1987) Almeida-Toledo Aimeida-Toledo et a/. (1985) et a/. (1985) STERNOPYGIDAE Efgenmannia sp. (CYT-1) Eigenmannia sp. (Cm-l) Eigenmannia sp. (CYT-3) Eigenmannia sp. (CYT-B) 28 38 38 46 46 Sternopygus macrurus S. macrurus Foresti (1987) ‘ Foresti (1987) Foresti (1987) X X X Foresti (1987) Foresti (1987) zvv 22 Foresti (1987) Foresti (1987) Bertdlo et a/. (1980) PERCIFORMES CICHLIDAE Acarichihys heckeli Apistograma agassizi A. agassizi Apistograma ortmanni A. orimanni A. pettensis 18 Astronotus ocellatus Cichla temensis Cichla sp. Crenicichla strigata C. lucius Dicrossus filamentosus 19 D. maculata 20 Geophagus altifrons 21 Guinacara sp. Heros sevems 22 H. severus H. severus Hypselacara coryphaenoides 23 Laetacara cutviceps24 Pterophyllum eimeksi P. scalare P. scalare Saianoperca jurupari 25 Symphysodon aequifasciafus 26 S. aequifasciatus 48 6WSM+42ST-T 46 24MSM+22ST-T 46 24MSM+22ST-T 48 48 48 40 48 4s 12M-SM+36ST-A 48ST-T 48ST-T 6MSM+42ST-T 48 48 4MSM+44ST-A 4M-SM+44ST-A 40 48 4MSM+44ST-T 6MSM+42ST-T 48 48 60 - 4MSM+44ST-T 20 19 24 24 23 24 M-SM P INTERST. 2 2 M-SM MSM P P INTERST. INTERST. 12M-.SM+34ST-T 24 24 19 24 24 30 2 44M+16A Thompson (1979) Scheel(i973) Thompson (1979) Scheel (1973) Thompsorl(l979) Post (1965) Feldberg B Bertdlo (1985ab) Thompsoil(l979) Venere (1988) Thompson (1979) Thompson (1979) Thompsom (1979) Scheel (1973) Feldberg & f3ertdlo (1985ab) Feldberg et a/. ( 1990) Post (1965) Scheel (1973) Thompson (1979) Thompson (1979) Scheel(l973) Post (1965) Scheel(l973) Thompson (1979) Moreira F” et a/. (198Oa) Ohno & Atkin (1966) Scheel(l973) TABLE S. aequifasciatus Uaru amphiacanthoides 1 (6) - 60 46 5@Jm+2sT-T m$M+3&ST-T _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Thompson (1979) Tholllpsoil(l979) - 38 38 38M 38wsM-sT _ _ - _ _ _ _ - _ Ohno & Atfdn (1966) Ofiieira et al. (1988a) LEPIDOSIRENIFORMES LEPIDCSIRENIDAE Lepidosiren paradoxa L. paradoxa 1 = Cheirodon axelrodi 5 = Hemigrammus gracilis 9 = P. harrfsoni 13 = Utiarftichthys sp 17 = Dianema urostriata 21 = Geophagus surinamensis 25 = Geophagus jurupari R~U. Hydrobiol. 2 = Hyphessobrycon simulans 6 = Hemigrammus stictus 10 = P. unifasciatus 14 = Brochis coeruleus 18 = Apistograma pertense 22 = Cichlasoma severum 26 = Symphysodon aequifasciata frop. 25 (Y) : 287-299 (1992). 3 = Poptella orbicularis 7 = Hyphessobrycon erythrostigma 11 = Piaractus nigripinnis 15 = Corydoras aneus 19 = Crenicara filamentosa 23 = Cichlasoma coryphaenoides 4 = Bryconella palifrons 8 = Poecilobrycon eques 12 = Metynnis hypsauchen 16 = Corydoras schuftzies 20 = Crenicara macufatus 24 = Aequidens curviceps