Regueiro M, Mirabal S, Lacau H, Caeiro J L, Garcia-Bertrand R L, Herrera R J
Department of Biological Sciences, Florida International University, University Park, OE 304, Miami, FL, 33199, USA.
Seccion de Antropoloxia, Facultade de Bioloxia, Universidade de Santiago de Compostela, Galicia, Spain.
J Hum Genet. 2008;53(2):106-120. doi: 10.1007/s10038-007-0224-4. Epub 2007 Dec 14.
The dispersal of the Austronesian language family from Southeast Asia represents the last major diaspora leading to the peopling of Oceania to the East and the Indian Ocean to the West. Several theories have been proposed to explain the current locations, and the linguistic and cultural diversity of Austronesian populations. However, the existing data do not support unequivocally any given migrational scenario. In the current study, the genetic profile of 15 autosomal STR loci is reported for the first time for two populations from opposite poles of the Austronesian range, Madagascar at the West and Tonga to the East. These collections are also compared to geographically targeted reference populations of Austronesian descent in order to investigate their current relationships and potential source population(s) within Southeast Asia. Our results indicate that while Madagascar derives 66.3% of its genetic makeup from Africa, a clear connection between the East African island and Southeast Asia can be discerned. The data suggest that although geographic location has influenced the phylogenetic relationships between Austronesian populations, a genetic connection that binds them beyond geographical divides is apparent.
南岛语系从东南亚的扩散，是导致大洋洲东部和印度洋西部人口迁移的最后一次主要大迁徙。人们提出了几种理论来解释南岛语系人群目前的分布地点以及他们的语言和文化多样性。然而，现有数据并不能明确支持任何一种特定的迁徙模式。在本研究中，首次报告了来自南岛语系分布范围两极的两个人群——西部的马达加斯加人和东部的汤加人的15个常染色体STR位点的基因概况。这些样本还与在地理上有针对性的南岛语系后裔参考人群进行了比较，以研究他们目前的关系以及东南亚境内可能的源人群。我们的结果表明，虽然马达加斯加人的基因构成中有66.3%来自非洲，但仍可看出这个东非岛屿与东南亚之间存在明显联系。数据表明，尽管地理位置影响了南岛语系人群之间的系统发育关系，但超越地理分隔将他们联系在一起的基因联系是明显的。
