Results 151 to 160 of about 1,744 (163)
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Molecular Phylogenetics and Evolution
Poeciliids (Cyprinodontiformes: Poeciliidae), commonly known as livebearers, are popular fishes in the aquarium trade (e.g., guppies, mollies, swordtails) that are widely distributed in the Americas, with 274 valid species in 27 genera. This group has undergone various taxonomic changes recently, spurred by investigations using traditional genetic ...
Sheila, Rodríguez-Machado +5 more
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Poeciliids (Cyprinodontiformes: Poeciliidae), commonly known as livebearers, are popular fishes in the aquarium trade (e.g., guppies, mollies, swordtails) that are widely distributed in the Americas, with 274 valid species in 27 genera. This group has undergone various taxonomic changes recently, spurred by investigations using traditional genetic ...
Sheila, Rodríguez-Machado +5 more
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Molecular systematics of the genus Allodontichthys (Cyprinodontiformes: Goodeidae)
Reviews in Fish Biology and Fisheries, 2002Phylogenetic analyses of cytochrome c oxidasesubunit I (627bp) and mitochondrial controlregion (338bp aligned) sequences for all knownspecies of Allodontichthys wereperformed. Allodontichthys was recoveredas monophyletic, and A. hubbsi wassupported as the most primitive member of thegenus in all analyses. Combined-data analysessuggest that A. polylepis
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Molecular Phylogeny of the Live-Bearing Fish Genus Poecilia (Cyprinodontiformes: Poeciliidae)
Molecular Phylogenetics and Evolution, 1999Members of the genus Poecilia exhibit extensive morphological, behavioral, and life history variation within and between species. This natural variation, coupled with short generation times and the ease with which members of this genus can be cultured in the lab, have made several species model systems for studying the effects of sexual and natural ...
F, Breden +4 more
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Sex differentiation pattern in the annual fish Austrolebias charrua (Cyprinodontiformes: Rivulidae)
Tissue and Cell, 2007Sex differentiation process, determination of sexual strategy, and gametogenesis of the annual fish Austrolebias charrua are established. Evidence of histological sex differentiation in an antero-posterior gradient was observed in pre-hatching stages. Sexual strategy corresponds to the "differentiated gonochoric" pattern. Histological analyses of adult
M J, Arezo +4 more
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A new Pamphorichthys (Cyprinodontiformes: Poeciliidae: Poeciliini) from central Brazil
Zootaxa, 2008A new species of Pamphorichthys is described from Preto river, tributary of the São Francisco river drainage. The new species is the sister group of the remaining species of Pamphorichthys, showing synapomorphies of the genus, including the reduced number of gonapophyses and gonapophyses tips parallel to the vertebral spine.
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Polymorphic Skeletal Characters in Aphanius fasciatus (Teleostei: Cyprinodontiformes)
Copeia, 1993Lynne R. Parenti, Concetta Tigano
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Phylogenetic Analysis of the Tribe Poeciliini (Cyprinodontiformes: Poeciliidae)
Copeia, 1997openaire +1 more source