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  • 1
    Language: English
    In: Biology letters, January 2018, Vol.14(1)
    Description: Intergeneric hybridization and introgression was reported from one of two populations of the recently discovered kipunji (), a critically endangered African monkey species of southern Tanzania. Kipunjis of the introgressed population (from Mount Rungwe) carry a mitochondrial DNA (mtDNA) haplotype closely related to those of parapatric yellow baboons (), whereas the second kipunji population, in the Udzungwa Mountains, carries the original kipunji mtDNA haplotypes, which diverged from the baboon lineage about 3 million years ago. Interestingly, in our study of yellow baboons in Tanzania, we found that baboons from the southeastern boundary of the Udzungwa Mountains carry mtDNA haplotypes closely related to the original kipunji haplotype, whereas baboons from the northern boundary, as expected, carry mtDNA haplotypes of the northern yellow baboon clade. These findings provide evidence for a case of inverted intergeneric admixture in primates: (i) a baboon mtDNA haplotype introgressed the Mount Rungwe kipunji population by mitochondrial capture and (ii) an Udzungwa Mountains kipunji mtDNA haplotype introgressed a small subpopulation of yellow baboons by either mitochondrial capture or nuclear swamping. The baboon-kipunji example therefore constitutes an interesting system for further studies of the effects of genetic admixture on fitness and speciation.
    Keywords: Divergence-Age ; Hybridization ; Mitochondrial Capture ; Nuclear Swamping ; Primates ; Haplotypes ; Cercopithecinae -- Genetics ; Papio Cynocephalus -- Genetics
    ISSN: 17449561
    E-ISSN: 1744-957X
    Source: MEDLINE/PubMed (U.S. National Library of Medicine)
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