新疆野扁桃与其近缘种的亲缘关系/Phylogenetic Relationship of Amygdalus ledebouriana Schlecht and Its Sibling Species in Xinjiang[J]

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Publication date
1 January 2013
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Abstract

野扁桃(Amygdalus ledebouriana Schlecht)为野生珍稀濒危植物资源,我国仅分布在新疆.为研究野扁桃与栽培扁桃及其近缘种的亲缘关系,对新疆野扁桃、栽培扁桃、栽培桃和桃属部分物种的叶绿体matK基因进行测序,基于Kimura双参数模型计算种间遗传距离,并以邻接法(NJ)构建系统发育树.结果表明:野扁桃与蒙古扁桃和榆叶梅的遗传距离较小,与栽培扁桃和桃属物种(桃、山桃和蟠桃)的遗传距离较大；栽培扁桃与山桃、蟠桃和桃的亲缘关系较其与野扁桃、榆叶梅和蒙古扁桃的亲缘关系更近

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