Genetic relationships of the Cuban hair sheep inferred from microsatellite polymorphism

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• 作者：Isabel Á ; lvarez<sup>asup> ; Juan Capote<sup>bsup><sup> ; sup><sup>jcapote@icia.essup> ; Amadou Traoré ; <sup>csup> ; Norge Fonseca<sup>dsup> ; Kirenia Pé ; rez<sup>dsup> ; Maite Cuervo<sup>asup><sup> ; sup><sup>esup> ; Ivá ; n Ferná ; ndez<sup>asup> ; Fé ; lix Goyache<sup>asup><sup> ; sup><sup>foyache@serida.orgsup>
• 关键词：Hair sheep ; Genetic resources ; Microsatellites ; Genetic diversity ; West Africa ; Cuban Pelibuey
• 刊名：Small Ruminant Research
• 出版年：2012
• 出版时间：May, 2012
• 年：2012
• 卷：104
• 期：1-3
• 页码：89-93
• 全文大小：259 K

文摘

The aim of this research was to assess: (a) the genetic relationships between the Cuban Pelibuey and both the Hair-Mexican and Hair-Canarian sheep populations; and (b) the influence of African hair sheep in the formation of the Cuban Pelibuey breed. A total of 146 individuals of Cuban Pelibuey hair sheep breed were sampled and genotyped for 26 microsatellites together with 26 Hair-Mexican and 24 Hair-Canarian individuals. Additionally, the same microsatellites set was typed on 110 West African hair sheep and on 41 individuals belonging to the Wooled-Canarian (23) and the Wooled-Palmera (18) sheep breeds to be used as outgroup. Genetic distance, correspondence and STRUCTURE analyses pointed out that the Cuban Pelibuey has a particular genetic background. This population has relatively high levels of gene diversity (0.685 ¡À 0.006) and rarefacted allelic richness (5.9). No signals of genetic bottleneck in the Cuban Pelibuey sheep were detected. The Hair-Canarian and the Hair-Mexican populations are closely related. This is likely to be due to a major role of the Cuban Pelibuey sheep in their formation. The influence of African hair sheep into the Cuban Pelibuey could be limited and recent in historical terms.