Zhou Tai-Cheng, Sha Tao, Irwin David M, Zhang Ya-Ping
a Laboratory for Conservation and Utilization of Bio-resources , Yunnan University , Kunming , China .
b State Key Laboratory of Genetic Resources and Evolution , Kunming Institute of Zoology, Chinese Academy of Sciences , Kunming , China , and.
Mitochondrial DNA. 2015;26(6):912-3. doi: 10.3109/19401736.2013.863287. Epub 2014 Jan 10.
Pavo cristatus, known as the Indian peafowl, is endemic to India and Sri Lanka and has been domesticated for its ornamental and food value. However, its phylogenetic status is still debated. Here, to clarify the phylogenetic status of P. cristatus within Phasianidae, we analyzed its mitochondrial genome (mtDNA). The complete mitochondrial DNA (mtDNA) genome was determined using 34 pairs of primers. Our data show that the mtDNA genome of P. cristatus is 16,686 bp in length. Molecular phylogenetic analyses of P. cristatus was performed along with 22 complete mtDNA genomes belonging to other species in Phasianidae using Bayesian and maximum likelihood methods, where Aythya americana and Anas platyrhynchos were used as outgroups. Our results show that P. critatus has its closest genetic affinity with Pavo muticus and belongs to clade that contains Gallus, Bambusicola and Francolinus.
孔雀,又称印度孔雀,原产于印度和斯里兰卡,因其观赏价值和食用价值而被驯化。然而,其系统发育地位仍存在争议。在此,为了阐明孔雀在雉科中的系统发育地位,我们分析了其线粒体基因组(mtDNA)。使用34对引物确定了完整的线粒体DNA(mtDNA)基因组。我们的数据表明,孔雀的mtDNA基因组长度为16,686 bp。利用贝叶斯法和最大似然法,对孔雀与雉科其他物种的22个完整mtDNA基因组进行了分子系统发育分析,其中以美洲潜鸭和绿头鸭作为外类群。我们的结果表明,孔雀与绿孔雀具有最密切的遗传亲缘关系,属于包含原鸡、竹鸡和鹧鸪的进化枝。