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A male linkage map constructed for QTL mapping in Spanish Churra sheep
Author(s) -
GutiérrezGil B.,
Arranz J.J.,
ElZarei M.F.,
Álvarez L.,
Pedrosa S.,
San Primitivo F.,
Bayón Y.
Publication year - 2008
Publication title -
journal of animal breeding and genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.689
H-Index - 51
eISSN - 1439-0388
pISSN - 0931-2668
DOI - 10.1111/j.1439-0388.2008.00729.x
Subject(s) - quantitative trait locus , autosome , biology , microsatellite , genetics , genetic linkage , breed , population , gene mapping , genome , linkage (software) , gene , allele , x chromosome , chromosome , medicine , environmental health
Summary A male ovine linkage map has been constructed on the basis of 11 half‐sib families of a commercial population of Spanish Churra sheep as part of a genome scan for quantitative trait loci mapping. A total of 1421 daughters and their sires were genotyped for 182 microsatellite markers evenly distributed along the ovine autosomes. A total of 259 192 genotypes were obtained, generating an average of 669 informative meioses per marker. An autosomal genome length of 3262 cM was estimated for the Churra population with a mean marker interval of 17.86 cM. Our map represents an approximate 90% coverage of the autosomal ovine genome and constitutes a useful tool for the genetic dissection of complex traits in this breed. General agreement was found between the Churra map and other published maps for sheep, despite certain length discrepancies.