东北梅花鹿遗传多样性及系统进化分析
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摘要
采用PCR直接测序法和克隆测序法,测定了东北梅花鹿4个品种共12个个体的线粒体基因组全序列,四个品种梅花鹿全长均为164 35bp,序列分析结果表明兴凯湖梅花鹿变异位点最多,然后依次为四平梅花鹿、东丰梅花鹿、敖东梅花鹿。四种梅花鹿的颠换对均小于转换对,四平梅花鹿的转换颠换率最大(R=15.0),其次为东丰梅花鹿(R=10.0)。兴凯湖梅花鹿与其他梅花鹿间的核苷酸距离较大,其中与东丰梅花鹿的核苷酸距离整体最大,梅花鹿的平均遗传距离为0.03。兴凯湖梅花鹿具有较高的核苷酸多样性(π=0.003 69),兴凯湖梅花鹿和东丰梅花鹿核苷酸间的歧异度Dxy最大(Dxy=0.004 82),系统进化关系为兴凯湖梅花鹿自成一单系,其他三个品种梅花鹿相互之间互有交叉。
Abstrat:We sequenced the complete mitochondrial genome of cervus nippon horutorum by PCR and Cloning.12 indiciduals from 4 populations of cervus nippon horutorum were included in this study.The complete mitochondrial genome length was 16435 base pairs.On the analysis:Xingkaihu breed had the highest variation sites,then from more to less was Siping breed,Dongfeng breed,Andong breed.The tansversion pairs of 4 populations were less than the transform pairs.Siping breed had the highest tansversion- transform rate(R = 15.0),then Dongfeng breed had the higher tansversion- transform rate(R = 10.0).Xingkaihu breed had the highest nucleotide distance,the nucleotide distance and the nucleotide divergence between xingkaihu breed and dongfengd breed were the greatest.The phylogenetie analysis displayed Xingkaihu breed was a separate group and other cervus nippon were cross mutually.
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