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应用mtDNACytb基因全序列分析中国5个马鹿群体的遗传多样性和系统发育

DOI: 10.7668/hbnxb.2010.04.003, PP. 12-16

Keywords: mtDNA,Cytb,起源,遗传多样性,系统发育,马鹿

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Abstract:

为了在分子水平上探讨马鹿的遗传多样性和系统发育,对我国个马鹿群体43头马鹿mtDNACytb基因全序列进行了分析.结果表明:个马鹿群体mtDNACytb基因全序列中A、T、G、C含量没有明显差别;多态位点占分析位点的7.63%,天山马鹿和塔里木马鹿的单倍型比例分别为100%,0%,单倍型多样度(Hd)分别为(1.000±0.218),(0.700±0.096),核苷酸多样度(Pi)分别为0.00333,0.0044,平均核苷酸差异数值(K)分别为3.800,6.200,其遗传多样性较丰富.对13个马鹿单倍型序列的系统发生分析表明,我国马鹿有2个母系起源.从GenBank获得33个马鹿Cytb基因全序列与本研究的马鹿Cytb基因的单倍型进行网络关系分析,发现塔里木马鹿与西方马鹿群体具有较近的亲缘关系.

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