Mitogenomic phylogeny of the Asian colobine genus &lt;i&gt;Trachypithecus&lt;/i&gt; with special focus on &lt;i&gt;Trachypithecus phayrei&lt;/i&gt; (Blyth, 1847) and description of a new species

Roos, Christian; Helgen, Kristofer M.; Miguez, Roberto Portela; Thant, Naw May Lay; Lwin, Ngwe; Lin, Aung; Yi, Khin Mar; Soe, Paing; Hein, Zin Mar; Myint, Margaret Nyein Nyein; Ahmed, Tanvir; Chetry, Dilip; Urh, Melina; Veatch, E. Grace; Duncan, Neil; Kamminga, Pepijn; Chua, Marcus A. H.; Lu, Yao; Matauschek, Christian; Meyer, Dirk; Liu, Zhijin; Li, Ming; Nadler, Tilo; Fan, Peng‐Fei; Quyet, Le Khac; Hofreiter, Michael; Zinner, Dietmar; Momberg, Frank

doi:10.24272/j.issn.2095-8137.2020.254

Cited by 751 publications

(13 citation statements)

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“…This predominantly folivorous primate lives in multi-male-multi-female groups, and the group sizes range from 4 to 26 individuals (Ahmed et al, 2020). It is one of the least studied primates in terms of ecology, behaviour, genetics and systematics (Roos et al, 2020). Here, we report an observed masturbation event involving a male Phayre's langur in Lawachara National Park, a 1260 ha semi-evergreen forest in northeastern Bangladesh.…”

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confidence: 94%

“…Phayre's langur, Trachypithecus phayrei (Blyth, 1847), is a globally endangered colobine primate, distributed from eastern Bangladesh, through the Assam, Mizoram and Tripura states of northeastern India, and into the west of the Chindwin and Ayeyarwady rivers in western Myanmar (Chetry and Ahmed, 2021;Roos et al, 2020). This predominantly folivorous primate lives in multi-male-multi-female groups, and the group sizes range from 4 to 26 individuals (Ahmed et al, 2020).…”

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Masturbation in a male Phayre's langur, Trachypithecus phayrei

Islam

Ahmed

2021

Primate Biol.

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Abstract. Masturbation is a common auto-sexual behaviour in humans but is not explicitly known in a major portion of non-human primates. We report the first masturbatory behaviour in a male Phayre's langur, Trachypithecus phayrei, observed in a semi-evergreen forest in northeastern Bangladesh. Like other Asian colobines, the multi-male–multi-female groups of the Phayre's langur suggest a multilevel social organization and a complex hierarchy among males. The lack of sexual opportunity could result in masturbation and sperm competition among males. However, sperm competition is reported to be low in such non-seasonal breeders. Hence, we suggest an adequate characterization of the socio-sexual behaviour and reproductive strategies of this globally endangered primate in order to demonstrate the causes, cost and consequences of masturbation. We also urge further scientific exploration into masturbation among primates due to its evolutionary and conservational significance.

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Masturbation in a male Phayre's langur, Trachypithecus phayrei

Islam

Ahmed

2021

Primate Biol.

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“…Ancient DNA can also be a way to improve museum collections, by assigning likely origins and species designations to museum specimens of uncertain provenance ( Shepherd et al, 2013 ) and ascertaining the accuracy of specimen data ( Verry et al, 2019 ). Additionally, many taxonomic puzzles have been solved by analysis of DNA from museum specimens, including equids ( Orlando et al, 2009 ), monk seals ( Scheel et al, 2014 ), leaf monkeys ( Roos et al, 2020 ), and most recently the reclassification of the dire wolf from Canis dirus to Aenocyon dirus , which had been largely ignored since it was first proposed in 1918 ( Perri et al, 2021 ).…”

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Ancient DNA of the pygmy marmoset type specimen Cebuella pygmaea (Spix, 1823) resolves a taxonomic conundrum

Boubli

Janiak

Porter

et al. 2021

Zoological Research

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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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“…Worldwide, there are currently more than 500 primate species from 80 genera and 16 families, with new primate species still being discovered in recent years ( Fan et al, 2017 ; Nater et al, 2017 ; Roos et al, 2020 ). As our closest biological relatives, NHPs hold many clues for understanding the origin and evolution of human complex traits, behaviors, and diseases.…”

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Initiation of the Primate Genome Project

Wu¹,

Qi²,

Yu³

et al. 2022

Zoological Research

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Mitogenomic phylogeny of the Asian colobine genus <i>Trachypithecus</i> with special focus on <i>Trachypithecus phayrei</i> (Blyth, 1847) and description of a new species

Cited by 751 publications

References 32 publications

Masturbation in a male Phayre's langur, <i>Trachypithecus phayrei</i>

Masturbation in a male Phayre's langur, <i>Trachypithecus phayrei</i>

Ancient DNA of the pygmy marmoset type specimen <i>Cebuella pygmaea</i> (Spix, 1823) resolves a taxonomic conundrum

Initiation of the Primate Genome Project

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Mitogenomic phylogeny of the Asian colobine genus <i>Trachypithecus</i> with special focus on <i>Trachypithecus phayrei</i> (Blyth, 1847) and description of a new species

Cited by 751 publications

References 32 publications

Masturbation in a male Phayre's langur, &lt;i&gt;Trachypithecus phayrei&lt;/i&gt;

Masturbation in a male Phayre's langur, &lt;i&gt;Trachypithecus phayrei&lt;/i&gt;

Ancient DNA of the pygmy marmoset type specimen <i>Cebuella pygmaea</i> (Spix, 1823) resolves a taxonomic conundrum

Initiation of the Primate Genome Project

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About

Masturbation in a male Phayre's langur, <i>Trachypithecus phayrei</i>

Masturbation in a male Phayre's langur, <i>Trachypithecus phayrei</i>