6个野鸭群体的遗传多样性及其与绍兴麻鸭的亲缘关系分析

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Abstract In this paper, microsatellite method was used to explore the genetic diversity and genetic relationship of 6 mainly domesticated wild ducks and Shaoxing partridge duck (Anas platyrhynchos domestic). 11 microsatellite loci were tested in the 7 species of duck, which were Common mallard (A. platyrhynchos), Xihu mallard (A. platyrhynchos), Fenghua mallard(A. platyrhynchos), Spot-billed duck (A. poecilorhyncha), Northern pintail (A. acuta), Red-crested pochard (Netta rufina), and Shaoxing partridge duck, totally 329 samples. The results showed that 141 effective alleles (Ne) were detected totally, the average effective allele per locus was 12.821, the average expected heterozygosity (He) was 0.856, and the mean polymorphic information content (PIC) was 0.845. All loci were moderately or highly polymorphic loci and were suitable for assessment of duck genetic diversity. High genetic diversity was detected in the 7 populations, and their polymorphism information contents were between 0.310 and 0.960. F- statistic analysis showed that Fst of all sites were between 0.047 and 0.469, the average Fst was 0.171, which indicated that there was a large genetic variation among populations. Nei's genetic distance (Ds) analysis showed that the genetic distances among Common mallard, Xihu mallard, Fenghua mallard and Shaoxing partridge duck were closely, and genetic distances from them to Common mallard, A. acuta and Netta rufina were far, simultaneously, the genetic distances among these three varieties were far as well. Phylogenetic tree analysis based on Nei's genetic distance revealed that N. rufina was clustered into one group separately. Moreover, the genetic distance between Shaoxing partridge duck and Common mallard was closer than the distance between Shaoxing partridge duck and Common mallard. It indicated that Shaoxing partridge duck is more likely to originate from Common mallard.The analysis of genetic diversity and relationship among 6 wild duck breeds and Shaoxing partridge duck further improve the genetic structure of wild duck and domestic.

Key words： Duck Microsatellite Genetic diversity Genetic distance

Received: 24 February 2016 Published: 01 July 2016

ZTFLH:	S834+.89
	S813.9

Fund:National Waterfowl Industry Technology System

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	Articles by authors
	DAO Zheng-Rong
	XU Xiao-Qin
	CHEN Jun-Ta
	LI Li
	ZENG Shou
	DU Xue
	DONG Shi-Hai
	LV Li-Zhi

Cite this article:

DAO Zheng-Rong,XU Xiao-Qin,CHEN Jun-Ta, et al. Analysis of Genetic Diversity and Relationship Among 6 Wild Duck breeds and Shaoxing Partridge Duck (Anas platyrhynchos domestic)[J]. , 2016, 24(8): 1173-1180.

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http://journal05.magtech.org.cn/Jwk_ny/EN/ OR http://journal05.magtech.org.cn/Jwk_ny/EN/Y2016/V24/I8/1173

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