Mwacharo J M, Nomura K, Hanada H, Jianlin H, Hanotte O, Amano T
Laboratory of Animal Genetics and Breeding, Department of Animal Science, Tokyo University of Agriculture, 1737 Funako Atsugi-shi, Kanagawa 243-0034, Japan.
Anim Genet. 2007 Oct;38(5):485-90. doi: 10.1111/j.1365-2052.2007.01641.x.
In this study, 30 microsatellite markers recommended by the International Society for Animal Genetics and the Food and Agriculture Organization were used to determine the extent of genetic differentiation and phylogenetic relationships among indigenous chicken populations sampled in Kenya, Uganda, Ethiopia and Sudan. Genetic differentiation (F(ST)) and chord genetic distances (D(C)) indicated that the indigenous chickens were genetically related but distinct from commercial broiler and egg layer lines. Genetic divergence among the indigenous chickens determined using the Mantel test was significantly influenced (P < 0.001) by geographic (reproductive) isolation. Genetic subdivisions were found between the Kenyan/Ugandan chicken populations and Ethiopian/Sudanese chicken populations. The Marsabit chicken population from northern Kenya was the most genetically distinct population within the Kenyan and Ugandan chicken cluster, thus warranting further investigation.
在本研究中,采用国际动物遗传学会和联合国粮食及农业组织推荐的30个微卫星标记,来确定在肯尼亚、乌干达、埃塞俄比亚和苏丹采集的本地鸡种群之间的遗传分化程度和系统发育关系。遗传分化(F(ST))和弦遗传距离(D(C))表明,本地鸡在遗传上相关,但与商业肉鸡和蛋鸡品系不同。使用Mantel检验确定的本地鸡之间的遗传差异受地理(生殖)隔离的显著影响(P < 0.001)。在肯尼亚/乌干达鸡种群和埃塞俄比亚/苏丹鸡种群之间发现了遗传细分。来自肯尼亚北部的马萨比特鸡种群是肯尼亚和乌干达鸡群中遗传上最独特的种群,因此值得进一步研究。