Document Detail

Identification of Y chromosome genetic variations in Chinese indigenous horse breeds.
MedLine Citation:
PMID:  20497969     Owner:  NLM     Status:  MEDLINE    
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.
Yinghui Ling; Yuehui Ma; Weijun Guan; Yuejiao Cheng; Yanping Wang; Jianlin Han; Dapeng Jin; Lai Mang; Halik Mahmut
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-05-23
Journal Detail:
Title:  The Journal of heredity     Volume:  101     ISSN:  1465-7333     ISO Abbreviation:  J. Hered.     Publication Date:    2010 Sep-Oct
Date Detail:
Created Date:  2010-07-23     Completed Date:  2010-11-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375373     Medline TA:  J Hered     Country:  United States    
Other Details:
Languages:  eng     Pagination:  639-43     Citation Subset:  IM    
Animal Genetic Resources Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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MeSH Terms
Equidae / genetics
Genetic Variation
Horses / genetics*
Microsatellite Repeats
Y Chromosome / genetics*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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