文献类型: 外文期刊
第一作者: Ling, Yinghui
作者: Ling, Yinghui;Ma, Yuehui;Guan, Weijun;Cheng, Yuejiao;Wang, Yanping;Han, Jianlin;Jin, Dapeng;Ling, Yinghui;Ma, Yuehui;Guan, Weijun;Cheng, Yuejiao;Wang, Yanping;Han, Jianlin;Jin, Dapeng;Mang, Lai;Mahmut, Halik
作者机构:
关键词: haplotype;horse;microsatellite;phylogeography;Y chromosome
期刊名称:JOURNAL OF HEREDITY ( 影响因子:2.645; 五年影响因子:3.069 )
ISSN: 0022-1503
年卷期: 2010 年 101 卷 5 期
页码:
收录情况: SCI
摘要: Y chromosome acts as a single nonrecombining unit that is male specific and in effect haploid, thus ensuring the preservation of mutational events as a single haplotype via male lines. In this study, 6 Y chromosome-specific microsatellites (SSR) were tested for the patrilineal genetic variations of 573 male samples from Chinese domestic horse (30 breeds), Przewalski's horse, and donkey. All the 6 loci appeared as a haplotype block in Przewalski's horse and the domestic donkey. There were notable differences, however, at Y chromosome markers between horse and donkey. There were 2 haplotypes of Eca. YA16 in the domestic horse breeds, Haplotype A (Allele A: 156 bp) and Haplotype B (Allele B: 152 bp). Allele A was the common allele among 30 horse breeds, and Allele B was found in 11 horse breeds. This is the first description of a Y chromosome variant for horses. The 2 haplotypes of Y chromosome discovered in the domestic horse breeds in China could be helpful in unveiling their intricate genetic genealogy.
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