ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2018, Vol. 49 ›› Issue (2): 282-290.doi: 10.11843/j.issn.0366-6964.2018.02.007

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Genetic Diversity and Paternal Origin of Breeder Sika Deer Based on Y Chromosome Genes

ZHOU Yong-na, LIU Hua-miao, JU Yan, ZHANG Ran-ran, WANG Lei, DONG Shi-wu, XING Xiu-mei*   

  1. Key Laboratory of Special Economic Animal Molecular Biology, Institute of Special Animal and Plant Sciences of Chinese Academy of Agriculture Sciences, Changchun 130112, China
  • Received:2017-07-28 Online:2018-02-23 Published:2018-02-10

Abstract:

The objective of this study was to investigate the genetic diversity and paternal origin of breeder sika deer by Y chromosome genes, and provide data support for the protection and breeding of sika deer. AMELY, DBY, USP9Y, SRY gene fragments on Y chromosome of 171 breeder sika deer (Shuangyang, Aodong, Siping, Dongfeng, Xingkaihu, Changbaishan, Dongda breeder sika deer) were amplified by PCR, and the PCR products were sequenced directly and analyzed by bioinformatics. The results showed that 8 SNPs were screened from 5 gene fragments, and AMELY1, AMELY2, DBY, USP9Y, SRY gene fragments had 3, 2, 1, 1, 1 mutation sites, respectively. Ten haplotypes (H1, H2, H3, H4, H5, H6, H7, H8, H9 and H10) were defined by DNASP5.1. H1 was the dominant haplotype, accounting for 49.1% of all breeder sika deer. H5 and H10 were unique to Dongfeng breeder sika deer. H9 was the ancestral haplotype. Haplotype diversity and nucleotide diversity of 171 breeder sika deer were 0.696 80 and 0.000 36, respectively. The results of NJ phylogenetic tree and structure population analysis showed that breeder sika deer had 3 paternal types (Y1, Y2 and Y3). Shuangyang and Siping breeder sika deer had a single paternal type(Y3), the other 5 breeder sika deer populations had multiple paternal types. The results indicate that Y chromosome of Chinese breeder sika deer have high haplotype diversity and very low nucleotide diversity.

Key words: breeder sika deer, Y chromosome, genetic diversity, paternal origin

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