Karyotypes of field mice of the genus <em>Apodemus</em> (Mammalia: Rodentia) from China

Masaharu Motokawa; Yi Wu; Masashi Harada; Yuta Shintaku; Xue-Long Jiang; Yu-Chun Li

doi:10.24272/j.issn.2095-8137.2018.054

Volume 39 Issue 5

Sep. 2018

Turn off MathJax

Article Contents

Article Navigation > Zoological Research > 2018 > 39(5): 348-355

Masaharu Motokawa, Yi Wu, Masashi Harada, Yuta Shintaku, Xue-Long Jiang, Yu-Chun Li. Karyotypes of field mice of the genus Apodemus (Mammalia: Rodentia) from China. Zoological Research, 2018, 39(5): 348-355. doi: 10.24272/j.issn.2095-8137.2018.054

Citation:

Masaharu Motokawa, Yi Wu, Masashi Harada, Yuta Shintaku, Xue-Long Jiang, Yu-Chun Li. Karyotypes of field mice of the genus Apodemus (Mammalia: Rodentia) from China. Zoological Research, 2018, 39(5): 348-355. doi: 10.24272/j.issn.2095-8137.2018.054

Citation:

PDF( 595 KB)

Karyotypes of field mice of the genus Apodemus (Mammalia: Rodentia) from China

doi: 10.24272/j.issn.2095-8137.2018.054

1 Kyoto University Museum, Kyoto University, Kyoto 606-8501, Japan2 Key Laboratory of Conservation and Application in Biodiversity of South China, School of Life Sciences, Guangzhou University, Guangzhou Guangdong 510006, China3 Laboratory Animal Center, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan4 Wildlife Research Center, Kyoto University, Sakyo, Kyoto 606-8203, Japan5 Japan Monkey Centre, Inuyama, Aichi 484-0081, Japan6 Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223, China7 Marine College, Shandong University (Weihai), Weihai Shandong 264209, China

Funds:

More Information

Corresponding author: Masaharu Motokawa,Yu-Chun Li,E-mail:motokawa.masaharu.6m@kyoto-u.ac.jp; li_yuchun@sdu.edu.cn
Publish Date: 2018-09-18

Abstract

Abstract

Karyotypes of four Chinese species of field mice of the genus Apodemus were examined, including Apodemus chevrieri (diploid chromosome number, 2n=48, fundamental number of autosomal arms, FNa=56), A. draco (2n=48, FNa=48), A. ilex (2n=48, FNa=48), and A. latronum (2n=48, FNa=48). Karyotypes of A. chevrieri, A. draco, and A. ilex are reported here for the first time, providing useful information for their species taxonomy. Determining the karyotypes of all species of Apodemus in Asia, both in this and previous studies, provides a solid overview of the chromosome evolution and species differentiation of the genus in East Asia. In addition to allopatric speciation, chromosome rearrangements likely played an important role in the formation of the four Apodemus species groups as well as speciation within each group in East Asia. For example, increased centromeric heterochromatin in A. latronum may have contributed to the post-mating reproductive isolation from the A. draco-A. ilex-A. semotus clade.
- Karyotype,
- Chromosome evolution,
- Speciation,
- Taxonomy,
- Field mice