Skull Variation in Asian Moles of the Genus Euroscaptor (Eulipotyphla: Talpidae) in Vietnam

Hai, Bui Tuan; Motokawa, Masaharu; Kawada, Shin-ichiro; Abramov, Alexei V.; Sơn, Nguyễn Trường

doi:10.3106/ms2019-0058

Cited by 11 publications

(3 citation statements)

References 39 publications

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“…The complex mountain topography can cause geographic isolation in high-altitude areas, which is known as the sky island theory (He & Jiang 2014;Bui et al 2020b). Wan et al (2018) suggested that the speciation of Uropsilus might be related to strong geographical isolation and ecological gradients provided by topographical diversity.…”

Section: Discussionmentioning

confidence: 99%

A new shrew mole species of the genus Uropsilus (Eulipotyphla: Talpidae) from northwestern Vietnam

BUI,

OKABE,

et al. 2023

Zootaxa

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A new medium-sized shrew mole species of the genus Uropsilus from Mount Fansipan, Hoang Lien National Park, Lao Cai Province, northwestern Vietnam is described based on morphological and molecular differences. Uropsilus fansipanensis sp. nov. is distinguished from the other Uropsilus species by the combination of the following features: the dorsum is lightly reddish-brown and venter is dark gray; the dark gray tail is long and slender, with a scattered white base and short bristle hairs; orbital process is oriented upwards posteriorly; lacrimal foramen is well developed and much larger than infraorbital foramen; the lower first premolar is approximately the same size as the lower third premolar. Genetic distances in terms of mitochondrial cytochrome b from other Uropsilus species presented pairwise divergences from 8.63 to 20.70%. To date, the new species is known to exist only in the type locality of Mt. Fansipan, a wet and cold temperate climate area with an upper montane forest at an elevation of approximately 2900 m, forming the southernmost distribution of the genus Uropsilus.

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Section: Discussionmentioning

confidence: 99%

A new shrew mole species of the genus Uropsilus (Eulipotyphla: Talpidae) from northwestern Vietnam

BUI,

OKABE,

et al. 2023

Zootaxa

Self Cite

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“…The taxonomy of E. parvidens and E. longirostris has not been definitively resolved [3]; therefore, it was proposed to distinguish two additional new species within E. longirostris sensu lato: Euroscaptor orlovi and Euroscaptor kuznetsovi, and a new subspecies of Euroscaptor parvidens ngoclinhensis within E. parvidens [4]. Recently, Bui et al [13] suggested that moles from the Dalat Plateau (southern Vietnam) and those from the Kontum Plateau (central Vietnam) may represent different species, Euroscaptor parvidens and E. ngoclinhensis, respectively.…”

Section: Introductionmentioning

confidence: 99%

Chromosomal Evolution of the Talpinae

Biltueva,

Vorobieva,

Lemskya

et al. 2023

Genes

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In recent years, the number of mole species with species status confirmed by genetic methods has been continuously increasing. Unfortunately, cytogenetic data are not yet available for all species. Here, for the first time, a GTG-banded karyotype of the small-toothed mole from Vietnam, Euroscaptor parvidens, a representative of the Eastern clade of the genus Euroscaptor, has been described. Through comparative analysis of available Euroscaptor (Euroscaptor parvidens, Euroscaptor klossi, and Euroscaptor malayana) and Oreoscaptor (Oreoscaptor mizura) karyotypes, we found cytogenetic signatures for each of the studied species. Zoo-FISH with sorted chromosomes of the Siberian mole (Talpa altaica) on chromosome sets of the small-toothed mole (E. parvidens), the small Japanese mole (Mogera imaizumii) from the closely related genus, and the Japanese shrew mole (Urotrichus talpoides) from the tribe Urotrichini made it possible to identify syntenic regions between these species. We propose a possible ancestral karyotype of the tribe and, based on it, traced the features of chromosomal rearrangements accompanying the divergence of moles. The low rates of chromosomal evolution within the species of the genus Talpa—T. altaica and T. europaea—and the high rates of karyotypic reshuffling within the Asian genera of the tribe were confirmed. The karyotype of the Japanese mountain mole O. mizura seems to be the most conserved among the Asian moles. The most frequently occurring types of chromosomal rearrangements in moles are the pericentric inversions and amplification of heterochromatin. The pericentric inversions on four pairs of autosomes are shared between the closely related genera Euroscaptor, Oreoscaptor, and Mogera, while many more apomorphic rearrangements have occurred in each lineage additionally. The highest rate of chromosomal changes, with five rearrangements occurring over approximately 7 million years, was recorded in the lineage of the small-toothed mole.

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“…The taxonomy of E. parvidens and E. longirostris has not been definitively resolved [3], so it is proposed to distinguish 2 additional new species within E.longirostris sensu lato: E.orlovi and E.kuznetsovi, and within E.parvidens a new subspecies of E. parvidens ngoclinhensis [4]. Recently Bui et al [13] suggested that moles from southern Vietnam (Dalat Plateau) and those from central Vietnam (Kontum Plateau) may represent different species, E. parvidens and E. ngoclinhensis, accordingly.…”

Section: Introductionmentioning

confidence: 99%

Chromosomal Evolution of the Talpinae

Biltueva,

Vorobieva,

Lemskya

et al. 2023

Preprint

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In recent years, the number of mole species for which the species status has been confirmed using genetic methods has been continuously increasing. Unfortunately, cytogenetic analysis is not available for all species. Here, for the first time, a GTG-banded karyotype of the small-toothed mole from Vietnam, Euroscaptor parvidens, a representative of the eastern clade of the genus Euroscaptor, was described. Through comparative analysis of available Euroscaptor (E. parvidens, E. klossi, and E. malayana) and Oreoscaptor (O.mizura) karyotypes we find cytogenetic signatures. Zoo-FISH with sorted chromosomes of the Siberian mole Talpa altaica on chromosome sets of the small-toothed mole E. parvidens, the small Japanese mole M. imaizumii from the close genus Mogera and the Japanese shrew mole Urotrichus talpoides from the tribe Urotrichini made it possible to identify syntenic regions between species that diverged about 35 million years ago. The low rate of chromosomal changes within the species of the genus Talpa - T.altaica and T.europaea - and the high rate of karyotypic reshuffling within the Asian genera of the tribe were confirmed. The pericentric inversions on four pairs of autosomes are shared between the closely related genera Euroscaptor, Oreoscaptor, and Mogera, while many more apomorphic rearrangements have occurred in each lineage additionally. The highest rate of chromosomal changes was recorded in the lineage of the small-toothed mole.

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Skull Variation in Asian Moles of the Genus Euroscaptor (Eulipotyphla: Talpidae) in Vietnam

Cited by 11 publications

References 39 publications

A new shrew mole species of the genus Uropsilus (Eulipotyphla: Talpidae) from northwestern Vietnam

A new shrew mole species of the genus Uropsilus (Eulipotyphla: Talpidae) from northwestern Vietnam

Chromosomal Evolution of the Talpinae

Chromosomal Evolution of the Talpinae

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