Ancient DNA of the pygmy marmoset type specimen Cebuella pygmaea (Spix, 1823) resolves a taxonomic conundrum.
Ancient DNA of the pygmy marmoset type specimen Cebuella pygmaea (Spix, 1823) resolves a taxonomic conundrum.
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DOI：
10.24272/j.issn.2095-8137.2021.143
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发表时间：
2021-11-18
影响因子：
4.9
通讯作者：
Roos C
中科院分区：
文献类型：
--
作者：
Boubli JP;Janiak MC;Porter LM;de la Torre S;Cortés-Ortiz L;Da Silva MNF;Rylands AB;Nash S;Bertuol F;Byrne H;Silva FE;Rohe F;de Vries D;Beck RMD;Ruiz-Gartzia I;Kuderna LFK;Marques-Bonet T;Hrbek T;Farias IP;Van Heteren AH;Roos C
侏儒绒猴是灵长类动物中最小的一种，广泛分布于亚马逊河流域西部。最近的研究使用分子和形态学数据已经确定了两个不同的物种分开的纳波和Solimes-Amazonas河。然而，将这一新的生物学证据与当前的分类学，即，两个亚种，Cebuella pygmaea pygmaea（Spix，1823）和Cebuella pygmaea niveiventris（Lönnberg，1940），是有问题的，因为不确定Spix的侏儒绒猴（Cebuella pygmaea pygmaea）是在纳波河和Solimes-Amazonas河的北部还是南部采集的，因此不清楚这两个新发现的物种中的哪一个应该被命名为pygmaea。在这里，我们提出的第一个分子数据从Spix的模式标本Cebuella pygmaea，以及新的线粒体基因组从现代侏儒绒猴采样附近的模式产地（塔巴廷加）的河流两岸。有了这些数据，我们可以确认这两个物种的正确名称，即，C.在纳波河和Solimes-Amazonas河以北的动物中，C. niveiventris为这两条河以南的动物。系统发育分析的新的遗传数据放入上下文中的细胞色素B基因序列从整个范围的侏儒绒猴进一步使我们重新评估的地理分布的两个Cebuella物种。我们将这两个物种的分裂追溯到254万年前。我们讨论了额外的，最近，每个血统内的细分，以及潜在的接触区之间的两个物种在这些河流的源头。
The pygmy marmoset, the smallest of the anthropoid primates, has a broad distribution in Western Amazonia. Recent studies using molecular and morphological data have identified two distinct species separated by the Napo and Solimões-Amazonas rivers. However, reconciling this new biological evidence with current taxonomy, i.e., two subspecies, Cebuella pygmaea pygmaea (Spix, 1823) and Cebuella pygmaea niveiventris (Lönnberg, 1940), was problematic given the uncertainty as to whether Spix’s pygmy marmoset (Cebuella pygmaea pygmaea) was collected north or south of the Napo and Solimões-Amazonas rivers, making it unclear to which of the two newly revealed species the name pygmaea would apply. Here, we present the first molecular data from Spix’s type specimen of Cebuella pygmaea, as well as novel mitochondrial genomes from modern pygmy marmosets sampled near the type locality (Tabatinga) on both sides of the river. With these data, we can confirm the correct names of the two species identified, i.e., C. pygmaea for animals north of the Napo and Solimões-Amazonas rivers and C. niveiventris for animals south of these two rivers. Phylogenetic analyses of the novel genetic data placed into the context of cytochrome b gene sequences from across the range of pygmy marmosets further led us to re-evaluate the geographical distribution for the two Cebuella species. We dated the split of these two species to 2.54 million years ago. We discuss additional, more recent, subdivisions within each lineage, as well as potential contact zones between the two species in the headwaters of these rivers.
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影响因子：
4.9
作者：
Chan, Kin O.;Hutter, Carl R.;Brown, Rafe M.
通讯作者：
Brown, Rafe M.
影响因子：
3.2
作者：
Burrell, Andrew S.;Disotell, Todd R.;Bergey, Christina M.
通讯作者：
Bergey, Christina M.
影响因子：
3.4
作者：
Bouckaert RR;Drummond AJ
通讯作者：
Drummond AJ
影响因子：
4.1
作者：
Boubli, Jean P.;Byrne, Hazel;Hrbek, Tomas
通讯作者：
Hrbek, Tomas
影响因子：
4.9
作者：
Garcia-Erill G;Kjaer MM;Albrechtsen A;Siegismund HR;Heller R
通讯作者：
Heller R