Indonesian mitochondrial DNA and its opposition to a Pleistocene era origin of proto-Polynesians in island southeast Asia
Indonesian mitochondrial DNA and its opposition to a Pleistocene era origin of proto-Polynesians in island southeast Asia
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DOI：
10.1353/hub.2005.0037
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发表时间：
2005-04-01
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影响因子：
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通讯作者：
Cox, MP
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作者：
Cox, MP
现代波利尼西亚人的起源，他们向太平洋扩张的路线，以及他们迁徙的时间，都是现代人类学中有争议的话题。许多研究使用分子数据来阐明印度-太平洋地区的定居模式，但相同的证据往往被不同的研究人员以相反的方式解释。最重要的是，线粒体DNA(MtDNA)多样性被用来区分相互竞争的迁徙模式，并将原始波利尼西亚人的可能来源缩小到中国南部和台湾或印度尼西亚东部。理查兹等人。(1998)使用了使用p统计量的年代测定方法来论证更新世(>；10,000年前)印度尼西亚东部波利尼西亚人的起源。这里，重新计算到最近共同祖先的时间(TMRCA)，用于一系列新的具有波利尼西亚亲缘关系的印度尼西亚mtDNA序列。这些数据包含了1998年后发表的其他序列，产生的日期不能排除这些序列在全新世(<；10000年前)有共同祖先的可能性。这意味着以前对印度尼西亚序列的TMRCA日期的估计缺乏可重复性所必需的统计稳健性。现存的线粒体DNA证据不能再被视为支持印度尼西亚东部的波利尼西亚人起源，而是与中国南部和台湾的原始波利尼西亚人的起源保持一致。
The origin of modern Polynesians, the route of their expansion into the Pacific Ocean, and the timing of their movements all remain contentious topics in modern anthropology. Numerous studies have used molecular data to elucidate settlement patterns in the Indo-Pacific region, but the same evidence is often interpreted in opposing ways by different researchers. Above all, mitochondrial DNA (mtDNA) diversity has been used to discriminate between competing migration models and has narrowed the probable source of proto-Polynesian peoples to southern China and Taiwan or eastern Indonesia. Richards et al. (1998) used a dating method employing the p statistic to argue for an origin of Polynesian peoples in eastern Indonesia during the Pleistocene (> 10,000 years ago). Here, the time to the most recent common ancestor (TMRCA) is recalculated for a new series of Indonesian mtDNA sequences with Polynesian affinities. These data, which incorporate additional sequences published after 1998, produce dates that cannot rule out the possibility of a common ancestor for these sequences during the Holocene (< 10,000 years ago). This implies that previous estimates of TMRCA dates for Indonesian sequences lacked the statistical robustness necessary for replicability. The extant mtDNA evidence can no longer be viewed as favoring a Polynesian origin in eastern Indonesia, but instead remains consistent with an origin of proto-Polynesian peoples in southern China and Taiwan.