Cultural Innovations Influence Patterns of Genetic Diversity in Northwestern Amazonia
| Autor: | Mark Stoneking, Guillermo Barreto, Leonardo Arias, Alexander Hübner, Brigitte Pakendorf, Roland Schröder |
|---|---|
| Přispěvatelé: | Evolutionary Genetics, Dynamique Du Langage (DDL), Université Lumière - Lyon 2 (UL2)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Male [SHS.ANTHRO-BIO]Humanities and Social Sciences/Biological anthropology population expansion Culture 01 natural sciences Effective population size 0601 history and archaeology Sociocultural evolution media_common 0303 health sciences education.field_of_study Sex Characteristics mtDNA Agriculture 06 humanities and the arts respiratory system Geography Female Lineage (genetic) linguistic exogamy Demographic history media_common.quotation_subject Population Biology Diversification (marketing strategy) 010603 evolutionary biology DNA Mitochondrial Polymorphism Single Nucleotide 03 medical and health sciences Genetics Humans education Molecular Biology Y-chromosome Ecology Evolution Behavior and Systematics Discoveries 030304 developmental biology Genetic diversity 060101 anthropology Chromosomes Human Y Reproductive success Exogamy Indians South American 030104 developmental biology Evolutionary biology Residence human activities Diversity (politics) population history |
| Zdroj: | Molecular Biology and Evolution Molecular Biology and Evolution, 35(11), 2719-2735. OXFORD UNIV PRESS Molecular Biology and Evolution, Oxford University Press (OUP), 2018, 35 (11), pp.2719-2735. ⟨10.1093/molbev/msy169⟩ |
| ISSN: | 1537-1719 0737-4038 |
| DOI: | 10.1093/molbev/msy169⟩ |
| Popis: | International audience; Human populations often exhibit contrasting patterns of genetic diversity in the mtDNA and the nonrecombining portion of the Y-chromosome (NRY), which reflect sex-specific cultural behaviors and population histories. Here, we sequenced 2.3 Mb of the NRY from 284 individuals representing more than 30 Native American groups from Northwestern Amazonia (NWA) and compared these data to previously generated mtDNA genomes from the same groups, to investigate the impact of cultural practices on genetic diversity and gain new insights about NWA population history. Relevant cultural practices in NWA include postmarital residential rules and linguistic exogamy, a marital practice in which men are required to marry women speaking a different language. We identified 2,969 SNPs in the NRY sequences, only 925 of which were previously described. The NRY and mtDNA data showed different sex-specific demographic histories: female effective population size has been larger than that of males through time, which might reflect larger variance in male reproductive success. Both markers show an increase in lineage diversification beginning $5,000 years ago, which may reflect the intensification of agriculture, technological innovations, and the expansion of regional trade networks documented in the archaeological evidence. Furthermore, we find similar excesses of NRY versus mtDNA between-population divergence at both the local and continental scale, suggesting long-term stability of female versus male migration. We also find evidence of the impact of sociocultural practices on diversity patterns. Finally, our study highlights the importance of analyzing high-resolution mtDNA and NRY sequences to reconstruct demographic history, since this can differ considerably between sexes. |
| Databáze: | OpenAIRE |
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