Laboratorio de Genética de Poblaciones-Biología Evolutiva. Unidad de Genética. Departamento de Biología. Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia.
Instituto Nacional de Biodiversidad (INABIO), Quito, Ecuador.
Mitochondrial DNA A DNA Mapp Seq Anal. 2020 May;31(4):147-162. doi: 10.1080/24701394.2020.1757084. Epub 2020 Apr 24.
The systematics of the Humboldt's wooly monkeys (; Atelidae) is essential to preserve this Neotropical primate species. Traditionally, four morphological subspecies have been described, which recently have been molecularly confirmed. However, no population genetics studies have been carried out throughout the geographical distribution of one of these subspecies, . For this reason, we analyzed nine mitochondrial genes of mainly collected from the Ecuadorian and Peruvian Amazon in order to better understand the evolutionary history of this taxon. The mitochondrial genetic diversity levels (haplotype and nucleotide diversity) we estimated are likely the highest yet reported for Our results did not detect important genetic structure within . Furthermore, our phylogenetic analyses did not detect any relevant molecular cluster in the area where Groves hypothesized the existence of . Therefore, based on these data, is not a valid taxon from a molecular perspective. The most differentiated subpopulation within was from Morona-Santiago province (Ecuador) and had a genetic distance of 0.8-1.2% relative to the other subpopulations studied. However, this genetic distance range is within the variability found within a population. We estimated the mitochondrial temporal diversification within to have occurred during the Pleistocene, 1.8-1.2 million years ago. Similarly, all our analyses detected a strong Pleistocene female population expansion for this taxon. Diverse spatial genetic analyses, perhaps with the exception of Monmonier's Algorithm, did not detect differentiated taxa within the area analyzed for . These genetics results could be of importance to conservation efforts to preserve this taxon as one unit.
洪堡氏羊毛猴（；绒猴科）的系统发育对于保护这种新热带灵长类物种至关重要。传统上，已经描述了四个形态亚种，最近已经通过分子方法得到了证实。然而，在其中一个亚种的地理分布范围内，尚未进行种群遗传学研究。为此，我们分析了主要来自厄瓜多尔和秘鲁亚马逊地区的 9 个线粒体基因，以更好地了解该分类群的进化历史。我们估计的线粒体遗传多样性水平（单倍型和核苷酸多样性）可能是迄今为止报道的 中的最高水平。我们的结果没有在 内检测到重要的遗传结构。此外，我们的系统发育分析在 Groves 假设存在 的区域没有检测到任何相关的分子聚类。因此，根据这些数据，从分子角度来看， 不是一个有效的分类群。在 内分化程度最高的亚种群来自莫罗纳-圣地亚哥省（厄瓜多尔），与研究的其他亚种群相比，遗传距离为 0.8-1.2%。然而，这个遗传距离范围在一个种群内的变异性范围内。我们估计，在更新世（180-120 万年前）， 内的线粒体时间多样化发生。同样，我们所有的分析都检测到该分类群在更新世期间经历了强烈的雌性种群扩张。各种空间遗传分析，也许除了 Monmonier 算法之外，都没有在分析区域内检测到分化的分类群。这些遗传结果对于保护这个分类群作为一个整体的保护工作可能很重要。
