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  1. Nijman V
    Zoo Biol, 2016 Jan-Feb;35(1):1-3.
    PMID: 26661798 DOI: 10.1002/zoo.21256
    Ogata and Seino [Zoo Biol, 2015, 34:76-79] sequenced the mitochondrial D-loop of five proboscis monkeys Nasalis larvatus from Yokahama Zoo, Japan, that were imported from Surabaya Zoo, Indonesia. They compared their sequences with those of 16 proboscis monkeys from Sabah, Malaysia, and on the basis of a haplotype network analysis of 256 base pairs concluded that the northern Malaysian and southern Indonesian populations of proboscis monkeys are genetically differentiated. I provide information on the origin of the Indonesian proboscis monkeys, showing that they were the first-generation offspring of wild-caught individuals from the Pulau Kaget Strict Nature Reserve in the province of South Kalimantan. Using a phylogenetic approach and adding additional sequences from Indonesia and Malaysia, I reanalyzed their data, and found no support for a north-south divide. Instead the resulting tree based on 433 base pairs sequences show two strongly supported clades, both containing individuals from Indonesia and Malaysia. Work on captive individuals, as reported by Ogata and Seino, can aid in developing appropriate markers and techniques, but to obtain a more complete understanding of the genetic diversity and differentiation of wild proboscis monkeys, more detailed geographic sampling from all over Borneo is needed.
    Matched MeSH terms: Animals, Zoo/genetics*
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