A new species of Asiatic shrew of the genus Chodsigoa (Soricidae, Eulipotyphla, Mammalia) from the Dabie Mountains, Anhui Province, eastern China

Abstract

Asiatic shrews of the genus Chodsigoa (Soricidae, Eulipotyphla) currently comprise nine species, mostly occurring in southwest China. From May 2017 to August 2020, 11 specimens of Chodsigoa were collected from the Dabie Mountains in Anhui Province, eastern China. Their morphology was compared with other species within the genus and one mitochondrial (cytochrome b) and two nuclear (apolipoprotein B and breast cancer 1) genes were sequenced to estimate the phylogenetic relationships of these specimens. Based on morphological and molecular evidence, these specimens are recognized as a distinct species, Chodsigoa dabieshanensissp. nov., which is formally described here. Morphologically, the new species is most similar to Chodsigoa hypsibia, but it is distinguishable from all known congeners by the combination of dark brownish pelage, small size, and relatively short tail. Phylogenetic analyses revealed that C. dabieshanensissp. nov. forms a phylogenetic lineage sister to the clade containing C. parva + C. hypsibia. The-Kimura 2-parameter genetic distances of the cytochrome b (CYT B) gene between the new species and other nominal Chodsigoa species ranged between 8.6 and 17.6%. The new species is distributed at elevations from 750 to 1250 m in the Dabie Mountains and is geographically distant from other species in the genus.

Integrative systematics and evolutionary history of Berylmys bowersi (Mammalia, Rodentia, Muridae)

“…In this study, both the morphological and molecular analyses in- (Shen et al, 2019), which act as dispersal corridors to facilitate the dispersal of terrestrial small mammals (Chen et al, 2022). Thus, the ancestor of B. bowersi and B. latouchei possibly migrated via the southeastern hills to eastern China, a potential migration route supported by several studies (Aplin et al, 2011;Ge et al, 2021).…”

Molecular phylogeny and taxonomy of the genus Nectogale (Mammalia: Eulipotyphla: Soricidae)

“…Many studies have shown a high level of species diversity in the tribe Nectogalini. For example, two new species of the genus Chodsigoa (Kastschenko, 1907) were recently described ( C. hoffmanni and C. dabieshanensis ) (Chen et al, 2017 , 2022 ). Some subspecies, such as Chodsigoa furva (Anthony, 1941), Chimarrogale leander (Thomas, 1902), and Neomys milleri (Mottaz, 1907) were recommended species status (Burgin & He, 2018 ; Chen et al, 2017 ; Igea et al, 2015 ; Yuan et al, 2013 ).…”

Molecular and morphological analyses of the genus Episoriculus with the description of a new subgenus

“…All Cyt b sequences were aligned and examined, and screening for heterozygote nuclear gene fragments was performed in Mega 5 [24]. Referring to research articles on the same species [15,[18][19], we used the three nuclear genes concatenated to analysis. Based on the amplified sequences in this study and downloaded sequences from NCBI, phylogenetic analyses were conducted on the following two datasets: 1) Cyt b genes; 2) three nuclear genes concatenated.…”

“…[15], Chen et al . [18–19], we amplified a mitochondrial gene (Cyt b ) and three nuclear gene fragments (Apob, Brca1, Rag2). Herein, we explore the phylogenetic relationships and taxonomic status of these species based on molecular and geometric morphometric data.…”

“…In the study, 77 specimens were used for morphometric analyses, and 56 specimens used for geometric morphometric analyses. With reference to the methods described by He et al [15], Chen et al [18][19], we amplified a mitochondrial gene (Cyt b) and three nuclear gene fragments (Apob, Brca1, Rag2). Herein, we explore the phylogenetic relationships and taxonomic status of these species based on molecular and geometric morphometric data.…”