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Differential positive selection of malaria resistance genes in three indigenous populations of Peninsular Malaysia

The indigenous populations from Peninsular Malaysia, locally known as Orang Asli , continue to adopt an agro-subsistence nomadic lifestyle, residing primarily within natural jungle habitats. Leading a hunter-gatherer lifestyle in a tropical jungle environment, the Orang Asli are routinely exposed to...

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Published in:Human genetics 2015-04, Vol.134 (4), p.375-392
Main Authors: Liu, Xuanyao, Yunus, Yushimah, Lu, Dongsheng, Aghakhanian, Farhang, Saw, Woei-Yuh, Deng, Lian, Ali, Mohammad, Wang, Xu, Ghazali, Fadzilah, Abdul Rahman, Thuhairah, Shaari, Shahrul Azlin, Salleh, Mohd Zaki, Phipps, Maude E., Ong, Rick Twee-Hee, Xu, Shuhua, Teo, Yik-Ying, Hoh, Boon-Peng
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cited_by cdi_FETCH-LOGICAL-c713t-d925133680c108cdf1f267640d8ed1a612a528c906b57c7da6664e9d7328074c3
cites cdi_FETCH-LOGICAL-c713t-d925133680c108cdf1f267640d8ed1a612a528c906b57c7da6664e9d7328074c3
container_end_page 392
container_issue 4
container_start_page 375
container_title Human genetics
container_volume 134
creator Liu, Xuanyao
Yunus, Yushimah
Lu, Dongsheng
Aghakhanian, Farhang
Saw, Woei-Yuh
Deng, Lian
Ali, Mohammad
Wang, Xu
Ghazali, Fadzilah
Abdul Rahman, Thuhairah
Shaari, Shahrul Azlin
Salleh, Mohd Zaki
Phipps, Maude E.
Ong, Rick Twee-Hee
Xu, Shuhua
Teo, Yik-Ying
Hoh, Boon-Peng
description The indigenous populations from Peninsular Malaysia, locally known as Orang Asli , continue to adopt an agro-subsistence nomadic lifestyle, residing primarily within natural jungle habitats. Leading a hunter-gatherer lifestyle in a tropical jungle environment, the Orang Asli are routinely exposed to malaria. Here we surveyed the genetic architecture of individuals from four Orang Asli tribes with high-density genotyping across more than 2.5 million polymorphisms. These tribes reside in different geographical locations in Peninsular Malaysia and belong to three main ethno-linguistic groups, where there is minimal interaction between the tribes. We first dissect the genetic diversity and admixture between the tribes and with neighboring urban populations. Later, by implementing five metrics, we investigated the genome-wide signatures for positive natural selection of these Orang Asli , respectively. Finally, we searched for evidence of genomic adaptation to the pressure of malaria infection. We observed that different evolutionary responses might have emerged in the different Orang Asli communities to mitigate malaria infection.
doi_str_mv 10.1007/s00439-014-1525-2
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Leading a hunter-gatherer lifestyle in a tropical jungle environment, the Orang Asli are routinely exposed to malaria. Here we surveyed the genetic architecture of individuals from four Orang Asli tribes with high-density genotyping across more than 2.5 million polymorphisms. These tribes reside in different geographical locations in Peninsular Malaysia and belong to three main ethno-linguistic groups, where there is minimal interaction between the tribes. We first dissect the genetic diversity and admixture between the tribes and with neighboring urban populations. Later, by implementing five metrics, we investigated the genome-wide signatures for positive natural selection of these Orang Asli , respectively. Finally, we searched for evidence of genomic adaptation to the pressure of malaria infection. 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subjects Adaptation, Biological - genetics
Biomedical and Life Sciences
Biomedicine
Cadherins - genetics
Disease Resistance - genetics
Evolution
fas Receptor - genetics
Gene Function
Genes
Genetic aspects
Genetic diversity
Genome-Wide Association Study
Genomics
Genotyping
Heme Oxygenase-1 - genetics
Human Genetics
Humans
Lymphotoxin-alpha - genetics
Malaria
Malaria - genetics
Malaysia - ethnology
Metabolic Diseases
Molecular Medicine
Natural selection
Nitric Oxide Synthase Type II - genetics
Original Investigation
Polymorphism, Single Nucleotide
Population Groups - genetics
Positive selection
Selection, Genetic
Transcriptome
Tumor Necrosis Factor-alpha - genetics
Urban populations
title Differential positive selection of malaria resistance genes in three indigenous populations of Peninsular Malaysia
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