Assignment of six enzyme loci to multipoint linkage groups in fishes of the genus Poeciliopsis (Poeciliidae): designation of linkage groups III-V

Three new linkage groups of enzyme loci are described using Poeciliopsis monacha x P. viriosa-derived interspecific backcross hybrids. Comparison to known linkage groups of the confamilial genus Xiphophorus shows homology between Xiphophorus linkage group I and Poeciliopsis linkage group III, Xiphop...

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Bibliographic Details
Published in:Biochemical genetics 1990-02, Vol.28 (1/2), p.83-95
Main Authors: Morizot, D.C. (University of Texas M.D. Anderson Cancer Center, Smithville, TX), Schultz, R.J, Wells, R.S
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Chromosome Mapping
Classical genetics, quantitative genetics, hybrids
Crosses, Genetic
CYPRINODONTIFORMES
Cyprinodontiformes - genetics
ENZIMAS
ENZYME
ENZYMES
FISH GENETIC
Freshwater
Fundamental and applied biological sciences. Psychology
GENE
GENES
Genetic Linkage
Genetics of eukaryotes. Biological and molecular evolution
HIBRIDACION
HYBRIDATION
HYBRIDIZING
LINKAGE MAPS
LOCI
LOCUS
MEXICO
MEXIQUE
Poecilia - genetics
Poeciliidae
Poeciliopsis
Poeciliopsis monacha
POECILIOPSIS MUNACHA
POECILIOPSIS VIRIOSA
Polymorphism, Genetic
Vertebrata
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Summary:Three new linkage groups of enzyme loci are described using Poeciliopsis monacha x P. viriosa-derived interspecific backcross hybrids. Comparison to known linkage groups of the confamilial genus Xiphophorus shows homology between Xiphophorus linkage group I and Poeciliopsis linkage group III, Xiphophorus linkage group II and Poeciliopsis linkage group I, and Xiphophorus linkage group IV and Poeciliopsis linkage group IV. Comparison of the gene content of other fish, amphibians, and mammal syntenic groups suggests retention of plesiomorphic vertebrate gene arrangements in at least two poeciliid linkage groups. Expansion of the Poeciliopsis gene map should be of utility in the identification of tumor regulatory genes through demonstration of linkage to biochemical markers.
ISSN:0006-2928
1573-4927
DOI:10.1007/BF00554823