Genetic linkage map of fishes of the genus Xiphophorus (Teleostei: Poeciliidae). | Zendy

Donald C. Morizot | Zendy; Susan A. Slaugenhaupt | Zendy; Klaus D. Kallman | Zendy; Aravinda Chakravarti | Zendy

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Genetic linkage map of fishes of the genus Xiphophorus (Teleostei: Poeciliidae).

Author(s) -

Donald C. Morizot,

Susan A. Slaugenhaupt,

Klaus D. Kallman,

Aravinda Chakravarti

Publication year - 1991

Publication title -

genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

eISSN - 1943-2631

pISSN - 0016-6731

DOI - 10.1093/genetics/127.2.399

Subject(s) - biology , xiphophorus , poeciliidae , genetics , synteny , genetic linkage , evolutionary biology , locus (genetics) , introgression , chromosome , gene , fish <actinopterygii> , fishery

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 probable gene orders for 10 linkage groups. The total genome length was estimated to be approximately 18 Morgans. Comparisons of the Xiphophorus linkage map with those of other fishes, amphibians and mammals suggested that fish gene maps are remarkably similar and probably retain many syntenic groups present in the ancestor of all vertebrates.

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