Meiotic Genes Are Enriched in Regions of Reduced Archaic Ancestry.
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| Abstract | About 1-6% of the genetic ancestry of modern humans today originates from admixture with archaic humans. It has recently been shown that autosomal genomic regions with a reduced proportion of Neanderthal and Denisovan ancestries (NA and DA) are significantly enriched in genes that are more expressed in testis than in other tissues. To determine whether a cellular segregation pattern would exist, we combined maps of archaic introgression with a cross-analysis of three transcriptomic datasets deciphering the transcriptional landscape of human gonadal cell types. We reveal that the regions deficient in both NA and DA contain a significant enrichment of genes transcribed in meiotic germ cells. The interbreeding of anatomically modern humans with archaic humans may have introduced archaic-derived alleles that contributed to genetic incompatibilities affecting meiosis that were subsequently purged by natural selection. |
| Year of Publication | 2017
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| Journal | Mol Biol Evol
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| Volume | 34
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| Issue | 8
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| Pages | 1974-1980
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| Date Published | 2017 Aug 01
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| ISSN | 1537-1719
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| DOI | 10.1093/molbev/msx141
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| PubMed ID | 28444387
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| PubMed Central ID | PMC5850719
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