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Multiple independent transpositions of mitochondrial DNA control region sequences to the nucleus

机译:线粒体DNA控制区序列到核的多个独立转座

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摘要

Transpositions of mtDNA sequences to the nuclear genome have been documented in a wide variety of individual taxa, but little is known about their taxonomic frequency or patterns of variation. We provide evidence of nuclear sequences homologous to the mtDNA control region in seven species of diving ducks (tribe Aythyini). Phylogenetic analysis places each nuclear sequence as a close relative of the mtDNA haplotypes of the specie(s) in which it occurs, indi- cating that they derive from six independent transposition events, all occurring within the last ≈1.5 million years.
机译:mtDNA序列向核基因组的转座已在多种个体分类中得到记录,但对其分类频率或变异模式知之甚少。我们提供了与七种潜水鸭(部落Aythyini)中mtDNA控制区同源的核序列的证据。系统发生学分析将每个核序列都与其发生的物种的mtDNA单倍型密切相关,表明它们源自六个独立的转座事件,都发生在过去的约150万年之内。

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