Molecular systematics and phylogeography of the endemic Osgood’s deermouse Osgoodomys banderanus (Rodentia: Cricetidae) in the lowlands of western Mexico

Ruiz-Vega, M. Laura; Hernández-Canchola, Giovani; León‐Paniagua, Livia

doi:10.1016/j.ympev.2018.06.034

Cited by 2 publications

(1 citation statement)

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“…These two clades seem to be allopatric, but more thorough sampling is needed to determine if there is a distinct boundary between them. The complex topography between the Sierra Madre del Sur and the Transmexican Volcanic Belt, in addition to the mouth of the Balsas River, could be acting as geographic barriers to gene flow between clades in the southern pygmy mouse (Amman and Bradley 2004; Figure 4), and this limit aligns well with boundaries between other cryptic sister mammal taxa such as the mouse opossums (Arcangeli et al 2018) and the Osgood's deermice (Ruiz-Vega et al 2018). Additionally, multiple diversification events in western México generated many Mexican endemic mammal species, including other neotomine rodents (Osgoodomys banderanus, Xenomys nelsoni, Hodomys alleni, and Peromyscus perfulvus), in addition to the pygmy spotted skunk (Spilogale pygmaea), two species of mouse opossums (Tlacuatzin), the Mexican shrew (Megasorex gigas), and the banana bat (Musonycteris harrisoni), among others (Ceballos 2014;Arcangeli et al 2018).…”

Section: Discussionmentioning

confidence: 81%

About the specific status of Baiomys musculus and B. brunneus

Hernández-Canchola

Paniagua

2021

Therya

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The southern pygmy mouse, Baiomys musculus, is distributed in arid and semiarid lowlands, from southern Nayarit and central Veracruz in México to northwestern Nicaragua, excluding the Yucatán Peninsula and the Caribbean tropical lowlands. Previous reports suggest that B. musculus includes two clades that may be eligible for specific status, although this remains uncertain. We used mitochondrial DNA (cytochrome b) and morphometric data to test whether two lineages exist within the species. Molecular data support the existence of two monophyletic groups with genetic distances of 6.69 % between them: clade I, a western clade found in Colima, Jalisco, and Michoacán; and clade II, an eastern clade found in Guerrero, Morelos, Oaxaca, and Veracruz. Morphologically, clade I individuals are larger than clade II. Moreover, these clades seem to be allopatric, and their geographic boundaries are located in the complex topography of western México. Examination of previous reviews in addition to the data from this study suggest that it may be appropriate to recognize each clade as a species: clade I as B. musculus (Merriam, 1892) and clade II as B. brunneus (Allen and Chapman, 1897). Future studies with nuclear or genomic data, including Central American populations, would verify this taxonomic hypothesis.

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Section: Discussionmentioning

confidence: 81%

About the specific status of Baiomys musculus and B. brunneus

Hernández-Canchola

Paniagua

2021

Therya

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Complete mitochondrial genomes confirm the generic placement of the plateau vole,Neodon fuscus

et al. 2019

Bioscience Reports

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The plateau vole, Neodon fuscus is endemic to China and is distributed mainly in Qinghai Province. It is of public health interest, as it is, a potential reservoir of Toxoplasma gondii and the intermediate host of Echinococcus multilocularis. However, genetic data of this species are lacking, and its name and taxonomy are still a controversy. In the present study, we determined the nucleotide sequence of the entire mitochondrial (mt) genome of N. fuscus and analyzed its evolutionary relationship. The mitogenome was 16328 bp in length and contained 13 protein-coding genes, 22 genes for transfer RNAs (tRNA), two ribosomal RNA genes and two major noncoding regions (OL region and D-loop region). Most genes were located on the heavy strand. All tRNA genes had typical cloverleaf structures except for tRNASer (GCU). The mt genome of N. fuscus was rich in A+T (58.45%). Maximum likelihood (ML) and Bayesian methods yielded phylogenetic trees from 33 mt genomes of Arvicolinae, in which N. fuscus formed a sister group with Neodon irene and Neodon sikimensis to the exclusion of species of Microtus and other members of the Arvicolinae. Further phylogenetic analyses (ML only) based on the cytb gene sequences also demonstrated that N. fuscus had a close relationship with N. irene. The complete mitochondrial genome was successfully assembled and annotated, providing the necessary information for the phylogenetic analyses. Although the name Lasiopodomys fuscus was used in the book ‘Wilson & Reeder’s Mammal Species of the World’, we have confirmed here that its appropriate name is N. fuscus through an analysis of the evolutionary relationships.

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Molecular systematics and phylogeography of the endemic Osgood’s deermouse Osgoodomys banderanus (Rodentia: Cricetidae) in the lowlands of western Mexico

Cited by 2 publications

References 64 publications

About the specific status of Baiomys musculus and B. brunneus

About the specific status of Baiomys musculus and B. brunneus

Complete mitochondrial genomes confirm the generic placement of the plateau vole,Neodon fuscus

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