Ogada Stephen, Otecko Newton O, Moraa Kennedy Grace, Musina John, Agwanda Bernard, Obanda Vincent, Lichoti Jacqueline, Peng Min-Sheng, Ommeh Sheila
Institute For Biotechnology Research Jomo Kenyatta University of Agriculture and Technology Nairobi Kenya.
State Key Laboratory of Genetic Resources and Evolution, Yunnan Laboratory of Molecular Biology of Domestic Animals Kunming Institute of Zoology Chinese Academy of Sciences Kunming China.
Ecol Evol. 2021 Dec 13;11(24):18562-18574. doi: 10.1002/ece3.8458. eCollection 2021 Dec.
Hunting wild African harlequin quails () using traditional methods in Western Kenya has been ongoing for generations, yet their genetic diversity and evolutionary history are largely unknown. In this study, the genetic variation and demographic history of wild African harlequin quails were assessed using a 347bp mitochondrial DNA (mtDNA) control region fragment and 119,339 single nucleotide polymorphisms (SNPs) from genotyping-by-sequencing (GBS) data. Genetic diversity analyses revealed that the genetic variation in wild African harlequin quails was predominantly among individuals than populations. Demographic analyses indicated a signal of rapid demographic expansion, and the estimated time since population expansion was found to be 150,000-350,000 years ago, corresponding to around the Pliocene-Pleistocene boundary. A gradual decline in their effective population size was also observed, which raised concerns about their conservation status. These results provide the first account of the genetic diversity of wild African harlequin quails of Siaya, thereby creating a helpful foundation in their biodiversity conservation.
在肯尼亚西部,世世代代以来人们一直使用传统方法猎捕野生非洲丑角鹌鹑(),然而其遗传多样性和进化历史在很大程度上却无人知晓。在本研究中,利用一个347bp的线粒体DNA(mtDNA)控制区片段以及来自简化基因组测序(GBS)数据的119,339个单核苷酸多态性(SNP),对野生非洲丑角鹌鹑的遗传变异和种群历史进行了评估。遗传多样性分析表明,野生非洲丑角鹌鹑的遗传变异主要存在于个体之间而非种群之间。种群分析显示出快速种群扩张的信号,并且发现种群扩张以来的估计时间为15万至35万年前,这大约对应上新世 - 更新世边界。还观察到其有效种群大小逐渐下降,这引发了对其保护状况的担忧。这些结果首次描述了西亚亚野生非洲丑角鹌鹑的遗传多样性,从而为其生物多样性保护奠定了有益基础。