The Out of Africa hypothesis, OOAH, was challenged recently in an extended mtDNA analysis, PPA (Progressive Phylogenetic Analysis), that identified the African human populations as paraphyletic, a finding that contradicted the common OOAH understanding that Hss had originated in Africa and invaded Eurasia from there. The results were consistent with the molecular Out of Eurasia hypothesis, OOEH, and Eurasian palaeontology, a subject that has been largely disregarded in the discussion of OOAH. In the present study the mtDNA tree, a phylogeny based on maternal inheritance, was compared to the nuclear DNA tree of the paternally transmitted Y-chromosome haplotypes, Y-DNAs. The comparison showed full phylogenetic coherence between these two separate sets of data. The results were consistent with potentially four translocations of modern humans from Eurasia into Africa, the earliest taking place ≈ 250,000 years before present, YBP. The results were in accordance with the postulates behind OOEH at the same time as they lent no support to the OOAH. The conformity between the mtDNA and Y-DNA phylogenies of Hss is consistent with the understanding that Eurasia was the donor and not the receiver in human evolution. The evolutionary problems related to OOAH became similarly exposed by the mtDNA introgression that took place from Hss into Neanderthals ≈ 500,000 YBP, a circumstance that demonstrated the early coexistence of the two lineages in Eurasia.

中文翻译：

---

智人的单向系统发育锚定了现代人类在欧亚大陆的起源

Out of Africa 假说 OOAH 最近在扩展 mtDNA 分析 PPA（渐进系统发育分析）中受到挑战，该分析将非洲人口确定为并系，这一发现与 OOAH 的普遍认识相矛盾，即 Hss 起源于非洲并侵入欧亚大陆从那里。结果与欧亚大陆之外的分子假说、OOEH 和欧亚古生物学一致，该主题在 OOAH 的讨论中基本上被忽视了。在本研究中，mtDNA 树（一种基于母系遗传的系统发育）与父系传递的 Y 染色体单倍型 Y-DNA 的核 DNA 树进行了比较。比较显示了这两组独立数据之间的完全系统发育一致性。结果与现代人类从欧亚大陆到非洲的潜在四次易位一致，最早发生在距今约 250,000 年，YBP。结果符合 OOEH 背后的假设，同时它们不支持 OOAH。Hss的mtDNA和Y-DNA系统发育之间的一致性与欧亚大陆是人类进化中的捐赠者而不是接受者的理解是一致的。从 Hss 到尼安德特人 ≈ 500,000 YBP 发生的 mtDNA 渗入同样暴露了与 OOAH 相关的进化问题，这种情况表明两个血统在欧亚大陆早期共存。结果符合 OOEH 背后的假设，同时它们不支持 OOAH。Hss的mtDNA和Y-DNA系统发育之间的一致性与欧亚大陆是人类进化中的捐赠者而不是接受者的理解是一致的。从 Hss 到尼安德特人 ≈ 500,000 YBP 发生的 mtDNA 渗入同样暴露了与 OOAH 相关的进化问题，这种情况表明两个血统在欧亚大陆早期共存。结果符合 OOEH 背后的假设，同时它们不支持 OOAH。Hss的mtDNA和Y-DNA系统发育之间的一致性与欧亚大陆是人类进化中的捐赠者而不是接受者的理解是一致的。从 Hss 到尼安德特人 ≈ 500,000 YBP 发生的 mtDNA 渗入同样暴露了与 OOAH 相关的进化问题，这种情况表明两个血统在欧亚大陆早期共存。