文献类型： 外文期刊
作者： He, Da-Qian 1 ; Zhu, Qing 1 ; Chen, Shi-Yi 1 ; Wang, Hui-Ying 2 ; Liu, Yi-Ping 1 ; Yao, Yong-Gang 3 ;
作者机构： 1.Sichuan Agr Univ, Coll Anim Sci & Technol, Yaan, Sichuan, Peoples R China
2.Shanghai Acad Agr Sci, Inst Anim Sci, Shanghai, Peoples R China
3.Chinese Acad Sci, Kunming Inst Zool, State Key Lab Genet Resource & Evolut, Kunming, Yunnan, Peoples R China
期刊名称：BMC EVOLUTIONARY BIOLOGY （ 影响因子：3.26； 五年影响因子：3.732 ）
ISSN： 1471-2148
年卷期： 2008 年 8 卷
页码：
收录情况： SCI
摘要： Background: China, with around 30 unique breeds, has a diverse duck genetic pool. Currently, there is no systematic report which investigates the genetic diversity, phylogenetic relationship, and matrilineal genetic structure of these domestic breeds and wild mallards (Anas platyrhynchos). Results: In this study, we sequenced the mitochondrial DNA ( mtDNA) control region segments in 278 domestic ducks (Anas platyrhynchos domestica) from 19 indigenous breeds/populations and 70 wild mallard samples and analyzed them together with the 101 control region sequences from published sources. Fifty-two samples were then sequenced for a cytochrome b (Cyt b) gene fragment to solidify the pattern emerged from the control region sequences. All domestic duck and wild mallard haplotypes were essentially indistinguishable and were clustered together in the phylogenetic tree. There was no geographic differentiation and breed/population-specific distribution of duck lineages. Conclusion: Our results showed that unlike other domesticated farm animals in China such as chicken, cattle, goat, and yak with multiple matrilineal components, the matrilineal pool of Chinese ducks was homogenous.
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