A primer on the phylogeography of Lagothrix lagotricha (sensu Fooden) in northern South America
2015
The taxonomic history of the genus Lagothrix is complex, with molecular and morphological assessments giving conflicting results for the separation between its taxa. Phylogeographic studies of the most widely distributed species, Lagothrix lagotricha, have only been attempted recently and are limited to few individuals per collection site, many of which were captive making their geographical origin dubious. There is debate regarding the possibility of raising subspecies of Lagothrix lagotricha to the species level, therefore the geographical origin of samples is particularly relevant. In the present work we revisit the intraspecific phylogeography of L. lagotricha from northwestern South America, including the subspecies L. l. poeppiggi, L. l. lagotricha and L. l. lugens (sensu Fooden, 1963), using DNA sequence data from hypervariable region I of the mitochondrial control region (D-loop HVI). Our results suggest a complex picture in which there are well delimited evolutionary units that, nonetheless, do not correlate well with the morphological variation used to support the current delimitation of taxa. Additionally, we corroborate previous results showing a lack of reciprocal monophyly between the putative subspecies of Lagothrix lagotricha, and we propose that this may be due to ancestral polymorphism that has been maintained following the recent spread of woolly monkeys throughout the western Amazonian lowlands and into the inter-Andean region of Colombia.
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