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Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2006;19(1): 1-6.
DOI: https://doi.org/10.5713/ajas.2006.1    Published online December 2, 2005.
Genetic Diversity of 14 Indigenous Grey Goose Breeds in China Based on Microsatellite Markers
Y. J. Tu, K. W. Chen, S. J. Zhang, Q. P. Tang, Y. S. Gao, N. Yang
Abstract
This experiment first cloned some microsatellite sequences for goose species by magnetic beads enriched method and studied the genetic structure research of 14 indigenous grey goose breeds using 19 developed and 12 searched microsatellite markers with middle polymorphism. According to the allele frequencies of 31 microsatellite sites, mean heterozygosity (H), polymorphism information content (PIC) and DA genetic distances were calculated for 31-microsatellite sites. The results showed that 25 of 31microsatellite sites were middle polymorphic, so the 25 microsatellite markers were effective markers for analysis of genetic relationship among goose breeds. The mean heterozygosity was between 0.4985 and 0.6916. The highest was in the Xupu (0.6916), and in the Yan was the lowest (0.4985) which was consistent with that of PIC. The phylogenetic tree was completed through analysis of UPGMA. Fencheng Grey, Shoutou, Yangjiang and Magang were grouped firstly, then Xongguo Grey, Wugang Tong, Changle and Youjiang were the second group; Gang, Yan Xupu and Yili were the third group; Yongkang Grey and Wuzeng were the fourth group. The results could provide basic molecular data for the research on the characteristics of local breeds in the eastern China, and a scientific basis for the conservation and utilization of those breeds.
Keywords: Microsatellite; Goose; Genetic Diversity


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