Assessment of Conservation Effects of Different Taihu Goose Conservation Farms Based on Simplified Genome Sequencing

doi:10.7668/hbnxb.2018.S1.016

Abstract

Abstract: The object of this study was to evaluate the conservation effect of Taihu Goose stock farm and national waterfowl gene bank,and to lay a theoretical foundation for further conservation of Taihu Goose.The simplified genomic sequencing method,ddRAD,was used to identify the SNP markers of the original population (TS),the stock farm population (TC) and the national waterfowl gene bank population (TK) of Taihu Goose.The genetic diversity of the three populations were compared and analyzed.The selected signals and their related genes were screened by using the genetic differentiation coefficient F_ST and the ratio of nucleotide diversity (π),and the selected genes were analyzed by functional enrichment methods,such as GO and KEGG.The results showed that compared with the original population,the genetic heterozygosity of TC and TK populations decreased,and the inbreeding coefficient increased.Further more,TK population had a trend of moderate differentiation from the TS and TK populations.The genes related to lipid metabolism in TC population had been selected to some extent.The results indicated that individuals of TC and TK populations should be properly increased to avoid fast increasing of inbreeding coefficient.And TK population should strengthen the gene exchange with TS population,so as to avoid the excessive differentiation with the TS and TC populations.

Key words: Duck, Breed conservation, Reduced-representation sequencing

CLC Number:

S813.9
S835

LIU Hongxiang, ZHU Manxing, QIN Haorong, SONG Weitao, ZHU Chunhong, TAO Zhiyun, XU Wenjuan, ZHANG Shuangjie, LI Huifang. Assessment of Conservation Effects of Different Taihu Goose Conservation Farms Based on Simplified Genome Sequencing[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2018, 33(S1): 94-99. doi: 10.7668/hbnxb.2018.S1.016.

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