龙海晨
(2022-10-01 21:58):
#paper Rowold D, Garcia-Bertrand R, Calderon S, Rivera L, Benedico DP, Alfonso Sanchez MA, Chennakrishnaiah S, Varela M, Herrera RJ. At the southeast fringe of the Bantu expansion: genetic diversity and phylogenetic relationships to other sub-Saharan tribes. Meta Gene. 2014 Oct 2;2:670-85. doi: 10.1016/j.mgene.2014.08.003. PMID: 25606451; PMCID: PMC4287857. 这是一篇研究撒哈拉以南的非洲的部落扩张的文章,介绍这篇文章,主要是因为咱们群里是多学科融合,我觉得咱们可以逐步开展合作。一般来说,研究几个文明的关系,通常可能从考古,人文,文化方面。这篇文章是通过对基因的分析研究来论证一个种族部落文明的迁徙发展的。通过对基因的研究分析,画出了班图人发源,迁徙,发展的路线。相当于把基因研究、数据分析运用在人文研究方面做出某些论证。咱们群里也可以试着开展合作。
At the southeast fringe of the Bantu expansion: genetic diversity and phylogenetic relationships to other sub-Saharan tribes
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Abstract:
Here, we present 12 loci paternal haplotypes (Y-STR profiles) against the backdrop of the Y-SNP marker system of Bantu males from the Maputo Province of Southeast Africa, a region believed to represent the southeastern fringe of the Bantu expansion. Our Maputo Bantu group was analyzed within the context of 27 geographically relevant reference populations in order to ascertain its genetic relationship to other Bantu and non Bantu (Pygmy, Khoisan and Nilotic) sub-equatorial tribes from West and East Africa. This study entails statistical pair wise comparisons and multidimensional scaling based on YSTR Rst distances, network analyses of Bantu (B2a-M150) and Pygmy (B2b-M112) lineages as well as an assessment of Y-SNP distribution patterns. Several notable findings include the following: 1) the Maputo Province Bantu exhibits a relatively close paternal affinity with both east and west Bantu tribes due to high proportion of Bantu Y chromosomal markers, 2) only traces of Khoisan (1.3%) and Pygmy (1.3%) markers persist in the Maputo Province Bantu gene pool, 3) the occurrence of R1a1a-M17/M198, a member of the Eurasian R1a-M420 branch in the population of the Maputo Province, may represent back migration events and/or recent admixture events, 4) the shared presence of E1b1b1-M35 in all Tanzanian tribes examined, including Bantu and non-Bantu groups, in conjunction with its nearly complete absence in the West African populations indicate that, in addition to a shared linguistic, cultural and genetic heritage, geography (e.g., east vs. west) may have impacted the paternal landscape of sub-Saharan Africa, 5) the admixture and assimilation processes of Bantu elements were both highly complex and region-specific.
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Keywords:
Africa,
Bantu,
MAP, Maputo Province,
MDS, multi-dimensional scaling,
MJ, medial joining,
PCR, polymerase chain reaction,
Phylogenetics,
Population genetics,
RFLP, restriction fragment length polymorphism,
SNP, single nucleotide polymorphism,
STR, short tandem repeat,
TMRCA, time of most recent common ancestor,
Y-STRs,
Y-chromosome,
mtDNA, mitochondrial DNA