Prof Jean Boubli J.P.Boubli@salford.ac.uk
Professor
How many Pygmy Marmoset (Cebuella Gray, 1870) species are there? A taxonomic re-appraisal based on new molecular evidence
Boubli, JP; da Silva, MNF; Rylands, AB; Nash, SD; Bertuol, F; Nunes, M; Mittermeier, RA; Byrne, H; da Silva, FE; Röhe, F; Sampaio, I; Schneider, H; Farias, IP; Hrbek, T
Authors
MNF da Silva
AB Rylands
SD Nash
F Bertuol
M Nunes
RA Mittermeier
H Byrne
FE da Silva
F Röhe
I Sampaio
H Schneider
IP Farias
T Hrbek
Abstract
The pygmy marmoset, Cebuella pygmaea, the smallest of the New World monkeys, has one of the largest geographical distributions of the Amazonian primates. Two forms have been recognized: Cebuella pygmaea pygmaea (Spix, 1823), and C. p. niveiventris Lönnberg, 1940. In this study, we investigated if the separation of pygmy marmosets into these two clades can be corroborated by molecular data. We also examine and compare coloration of the pelage in light of the new molecular results. We analyzed the mtDNA cytochrome b gene and, for the first time for any Neotropical primate, we used a reduced representation genome sequencing approach (ddRADseq) to obtain data for recently collected, geographically representative samples from the Rio Japurá, a northern tributary of the Rio Solimões and from the Javarí, Jutaí, Juruá, Madeira and Purus river basins, all tributaries south of the Solimões. We estimated phylogenies and diversification times under both maximum likelihood and Bayesian inference criteria. Our analysis showed two highly supported clades, with intraclade divergences much smaller than interclade divergences, indicating two species of Cebuella: one from the Rio Japurá and one to the south of Solimões. The interpretation of our results in light of the current taxonomy is not trivial however. Lönnberg stated that the type of Spix’s pygmy marmoset (type locality ‘near Tabatinga’) was obtained from the south of the Solimões, and his description of the distinct niveiventris from Lago Ipixuna, south of the Solimões and several kilometres east of Tabatinga, was based on a comparison with specimens that he determined as typical pygmaea that were from the upper Rio Juruá (south of the Solimões). As such it remains uncertain whether the name pygmaea should be applicable to the pygmy marmosets north of the Rio Solimões (Tabatinga type locality) or south (near Tabatinga but across the Solimões). Finally, our analysis of pelage coloration revealed three phenotypic forms: 1) south of the Rio Solimoes, 2) Eirunepé-Acre, upper Juruá basin; and 3) Japurá. More samples from both sides of Solimões in the region of Tabatinga will be necessary to ascertain the exact type locality for Spix’s pygmaea and to resolve the current uncertainties surrounding pygmy marmoset taxonomy.
Citation
Boubli, J., da Silva, M., Rylands, A., Nash, S., Bertuol, F., Nunes, M., …Hrbek, T. (2017). How many Pygmy Marmoset (Cebuella Gray, 1870) species are there? A taxonomic re-appraisal based on new molecular evidence. Molecular Phylogenetics and Evolution, 120, 170-182. https://doi.org/10.1016/j.ympev.2017.11.010
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 22, 2017 |
Online Publication Date | Nov 23, 2017 |
Publication Date | Nov 23, 2017 |
Deposit Date | Nov 27, 2017 |
Publicly Available Date | Nov 23, 2018 |
Journal | Molecular Phylogenetics and Evolution |
Print ISSN | 1055-7903 |
Publisher | Elsevier |
Volume | 120 |
Pages | 170-182 |
DOI | https://doi.org/10.1016/j.ympev.2017.11.010 |
Publisher URL | http://dx.doi.org/10.1016/j.ympev.2017.11.010 |
Related Public URLs | https://www.journals.elsevier.com/molecular-phylogenetics-and-evolution |
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