Genomic variation in Pekin duck populations developed in three different countries as revealed by whole-genome data
文献类型： 外文期刊
作者： Zhang, Z. 1 ; Jia, Y. 2 ; Chen, Y. 3 ; Wang, L. 3 ; Lv, X. 3 ; Yang, F. 4 ; He, Y. 5 ; Ning, Z. 1 ; Qu, L. 1 ;
作者机构： 1.China Agr Univ, Dept Anim Genet & Breeding, Natl Engn Lab Anim Breeding, Coll Anim Sci & Technol, Beijing, Peoples R China
2.Chinese Acad Agr Sci, Inst Anim Sci, Beijing, Peoples R China
3.Beijing Municipal Gen Stn Anim Sci, Beijing, Peoples R China
4.Inst Pekin Duck, Beijing, Peoples R China
5.Cherry Valley Farms Xianghe Co Ltd, Langfang, Peoples R China
关键词： molecular marker; selection signature; whole-genome resequencing
期刊名称：ANIMAL GENETICS （ 影响因子：3.169； 五年影响因子：3.058 ）
ISSN： 0268-9146
年卷期： 2018 年 49 卷 2 期
页码：
收录情况： SCI
摘要： It is well known that both British and American Pekin ducks originated from China. However, the populations differ substantially in production performance, but the genetic changes involved are still poorly understood. Herein, we sequenced 24 individual Pekin ducks (eight from each population) with an average sequencing depth of more than 45x for each population (mean coverage of 6.29 per individual). Among these populations from three different countries, we identified a large number of SNPs and indels as well as many unique population variants, which can be used as population-specific molecular markers. Genomic comparisons among the three duck populations revealed many candidate genes as well as pathways and Gene Ontology categories that are putatively associated with meat yield in the British population, growth in the American population and brain development in all three populations. These findings will enable a better understanding of the artificial selection history of Pekin ducks and provide a valuable resource for future research on the breeding of this species.
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