Summary: | <p> Past sightings of red-tailed (<i>Cercopithecus ascanius</i>) x blue (<i>Cercopithecus mitis</i>) hybrid monkeys in Uganda indicates the potential for hybridization between <i>C. ascanius</i> and <i> C. mitis</i> individuals. Apart from Gombe Stream National Park, there is no of evidence suggestive of <i>C. ascanius × C. mitis</i> monkey hybridization at investigated East African locations. Phylogenetic analysis was examined using Mitochondrial DNA (mtDNA) sequence data of twelve <i>C. mitis stuhlmanni</i> samples (from two populations) in Kibale National Park (KNP), Uganda to test for any evidence of hybridization. </p><p> Strict mono-phylogeny among two new <i>C. mitis</i> haplotypes were detected. Genetic diversity measurements support neither interspecific or intraspecific hybridization among <i>C. mitis</i> individuals from populations within Kibale National Park. To intensify the implications of this study further examination should include an increase in sample size(s), mtDNA comparison of <i>C. mitis</i> subspecies from additional populations at East African locations, and assessment of nuclear and genomic DNA.</p><p>
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