|
|
Genetic diversity, population structure and demographic history of Dugesia japonica in Taihang Mountains |
Hecai Zhang, Tiange Hu, Changying Shi, Guangwen Chen, Dezeng Liu |
College of Life Sciences, Henan Normal University, Xinxiang 453007, China |
|
|
Abstract The freshwater planarian Dugesia japonica has become a model organism in regeneration biology and toxicology due to its powerful regeneration capability and highly chemical sensitivity. Nonetheless, little is known about its evolutionary history and demographics. Taihang Mountains is the natural boundary between the Loess Plateau and the North China Plain, and is considered as one of the important priority areas for biodiversity conservation in China. In order to figure out the genetic diversity, population structure and demographic history of D. japonica in Taihang Mountains, a study based on the mitochondrial COI from 116 individuals sampled across 20 populations has been conducted. The results showed that the 116 COI sequences yielded 32 haplotypes, including 8 shared haplotypes and 24 private ones. The overall haplotype diversity (Hd) and nucleotide diversity (π) were 0.920 and 0.083, respectively. Even though the AMOVA results suggested that the genetic variation among populations was significant (FST=0.480, P<0.01), the phylogeny and haplotype network analysis based on 32 haplotypes revealed no obvious phylogeographic pattern. Furthermore, the significantly positive values of neutrality test (Tajima's D=2.596, P<0.05; Fu's Fs=2.769, P<0.01) together with the multimodal arrangement of mismatch distribution indicated that D. japonica in Taihang Mountains would have been undergoing population decline. We hope these findings will arouse conservation and management strategy regarding freshwater planarians and contribute to the biodiversity in the long run.
|
|
Fund:This work was supported by the National Natural Science Foundation of China (31702010), Major Public Welfare Project of Henan Province (201300311700), and Puyang Field Scientific Observation and Research Station for Yellow River Wetland Ecosystem, Henan Province |
Corresponding Authors:
Guangwen Chen
E-mail: chengw0183@sina.com
|
|
|
|
[1] |
Yejie Lin, Huifeng Zhao, Joseph K H Koh, Shuqiang Li. Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia[J]. Zoological Systematics, 2022, 47(3): 198-270. |
[2] |
Deyuan Hong, Wenying Zhuang, Min Zhu, Keping Ma, Xiaoquan Wang, Dawei Huang, Yalin Zhang, Guodong Ren, Wenjun Bu, Wanzhi Cai, Dong Ren, Ding Yang, Aiping Liang, Fengyan Bai, Runzhi Zhang, Fumin Lei, Shuqiang Li, Hongzhi Kong, Lei Cai, Yucheng Dai, Chaodong Zhu, Qisen Yang, Jun Chen, Zhongli Sha, Jianping Jiang, Jing Che, Donghui Wu, Jiatang Li, Qiang Wang, Xinli Wei, Ming Bai, Xingyue Liu, Xuexin Chen, Gexia Qiao. Positioning taxonomic research for the future[J]. Zoological Systematics, 2022, 47(3): 185-187. |
[3] |
Chaodong Zhu, Arong Luo, Ming Bai, Michael C. Orr, Zhonge Hou, Siqin Ge, Jun Chen, Yibo Hu, Xuming Zhou, Gexia Qiao, Hongzhi Kong, Limin Lu, Xiaohua Jin, Lei Cai, Xinli Wei, Ruilin Zhao, Wei Miao, Qingfeng Wang, Zhongli Sha, Qiang Lin, Meng Qu, Jianping Jiang, Jiatang Li, Jing Che, Xuelong Jiang, Xiaoyong Chen, Lianming Gao, Zongxin Ren, Chunlei Xiang, Shixiao Luo, Donghui Wu, Dong Liu, Yanqiong Peng, Tao Su, Chenyang Cai, Tianqi Zhu, Wanzhi Cai, Xingyue Liu, Hu Li, Huaijun Xue, Zhen Ye, Xuexin Chen, Pu Tang, Shujun Wei, Hong Pang, Qiang Xie, Feng Zhang, Feng Zhang, Xianjin Peng, Aibing Zhang, Taiping Gao, Changfa Zhou, Chen Shao, Libin Ma, Zhaoming Wei, Yunxia Luan, Ziwei Yin, Wu Dai, Cong Wei, Xiaolei Huang, Jingxian Liu, Xiangsheng Chen, Tianci Yi, Zhisheng Zhang, Zhulidezi Aishan, Qin Li, Hongying Hu. A joint call for actions to advance taxonomy in China[J]. Zoological Systematics, 2022, 47(3): 188-197. |
[4] |
Qiang Li, Xiaoyan Luo, Qian Liu, Zhentao Cheng, Xiaolei Huang. Reducing human error to improve efficiency of DNA barcoding: the primer case[J]. Zoological Systematics, 2022, 47(3): 271-273. |
[5] |
Xinzheng Li. Advances on taxonomy of marine Crustacea in China[J]. Zoological Systematics, 2022, 47(2): 95-108. |
[6] |
Yejie Lin, Shuqiang Li. Taxonomic notes on seven species of the family Hersiliidae (Arachnida: Araneae) from China and the Philippines[J]. Zoological Systematics, 2022, 47(2): 132-145. |
|
|
|
|