Botero Sergio, Stevenson Pablo R, Di Fiore Anthony
Laboratory of Cellular Biophysics, The Rockefeller University, New York, NY 10065, USA.
Departamento de Ciencias Biológicas, Universidad de los Andes, CO-4976 Bogotá, Colombia.
Mol Phylogenet Evol. 2015 Jan;82 Pt B:511-7. doi: 10.1016/j.ympev.2014.05.019. Epub 2014 Jun 4.
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.
绒毛猴属的分类学历史较为复杂，分子评估和形态学评估对于该属各分类单元之间的划分给出了相互矛盾的结果。对于分布最广泛的物种——绒毛猴（Lagothrix lagotricha）的系统地理学研究直到最近才开始尝试，且每个采集地点的个体数量有限，其中许多是圈养个体，其地理来源存疑。关于将绒毛猴（Lagothrix lagotricha）的亚种提升到物种水平的可能性存在争议，因此样本的地理来源尤为重要。在本研究中，我们利用线粒体控制区（D-loop HVI）高变区I的DNA序列数据，重新审视了南美洲西北部绒毛猴（L. lagotricha）的种内系统地理学，包括L. l. poeppiggi、L. l. lagotricha和L. l. lugens（根据Fooden，1963）这几个亚种。我们的结果表明情况较为复杂，其中存在界限分明的进化单元，但这些单元与用于支持当前分类单元划分的形态变异并不十分相关。此外，我们证实了先前的结果，即绒毛猴（Lagothrix lagotricha）假定亚种之间缺乏相互单系性，我们认为这可能是由于在绒毛猴最近扩散到整个亚马逊西部低地并进入哥伦比亚安第斯山脉间地区之后，祖先多态性得以保留。
