منابع مشابه
Genetic linkage map of fishes of the genus Xiphophorus (Teleostei: Poeciliidae).
Analysis of genotypes of 76 polymorphic loci in more than 2600 backcross hybrid individuals derived from intra- and interspecific genetic crosses of fishes of the genus Xiphophorus (Poeciliidae) resulted in the identification of 17 multipoint linkage groups containing 55 protein-coding loci and one sex chromosome-linked pigment pattern gene. Multipoint linkage analyses identified highly probabl...
متن کاملA microsatellite genetic linkage map for Xiphophorus.
Interspecies hybrids between distinct species of the genus Xiphophorus are often used in varied research investigations to identify genomic regions associated with the inheritance of complex traits. There are 24 described Xiphophorus species and a greater number of pedigreed strains; thus, the number of potential interspecies hybrid cross combinations is quite large. Previously, select Xiphopho...
متن کاملEvolution of the elaborate male intromittent organ of Xiphophorus fishes
Internally fertilizing animals show a remarkable diversity in male genital morphology that is associated with sexual selection, and these traits are thought to be evolving particularly rapidly. Male fish in some internally fertilizing species have "gonopodia," highly modified anal fins that are putatively important for sexual selection. However, our understanding of the evolution of genital div...
متن کاملPhylogenomics reveals extensive reticulate evolution in Xiphophorus fishes.
Hybridization is increasingly being recognized as a widespread process, even between ecologically and behaviorally divergent animal species. Determining phylogenetic relationships in the presence of hybridization remains a major challenge for evolutionary biologists, but advances in sequencing technology and phylogenetic techniques are beginning to address these challenges. Here we reconstruct ...
متن کاملProtein polymorphisms, segregation in genetic crosses and genetic distances among fishes of the genus Xiphophorus (Poeciliidae).
The products of 49 protein-coding loci were examined by starch gel electrophoresis for populational variation in six species of Xiphophorus fishes and/or segregation in intra-and interspecific backcross and intercross hybrids. Electrophoretic variation was observed for 29 of the 35 locus products in a survey of 42 population samples. The highest frequency of polymorphic loci observed in noninbr...
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ژورنال
عنوان ژورنال: ILAR Journal
سال: 1998
ISSN: 1084-2020
DOI: 10.1093/ilar.39.2-3.237