Mitochondrial Genomic Characterization of Two Endemic Chinese Freshwater Crabs of the Genus (Brachyura: Potamidae) and Implications for Biogeography Analysis of Potamidae

Overview

Journal Ecol Evol

Date 2023 Mar 13

PMID 36911301

Authors

Yanjun Shen

Qinghua Li

Ruli Cheng

Yang Luo

Yufeng Zhang

Qing Zuo

Affiliations

Soon will be listed here.

Abstract

As an endemic freshwater crab group in China, the phylogenetic relationships within are still controversial because of the limited taxon samples. In this study, the complete mitogenomes of with 17,311 bp and the nearly complete mitogenomes of with 16,785 bp were firstly sequenced and analyzed. Compared with other reported mitogenomes of Potamidae, some novel patterns of gene rearrangement were detected in these two mitogenomes, which could be illuminated by the mechanisms of tandem duplication-random loss, recombination, and translocation. Phylogenetic analyses showed the nonmonophyly of the and a sister group relationship with . These crabs from the eastern and southern of the Yangtze River basin were more closely related while other crabs form the plateau areas formed a separate clade. Divergence time indicated that the and its sister group diverged from other potamiscine freshwater crabs approximately 42.65 Mya, which belongs to the recent main uplifts period of the Tibetan Plateau in the Late Miocene. Combined with the similar evolutionary rates and relatively stable habitat altitude of these species, these results implied that the ecological environment may be relatively stable during the speciation. Overall, our study yielded worthy perceptions for the evolutionary and taxonomic relationship of and will help to better clarify the gene rearrangement events of the invertebrate mitogenome and lay the foundation for further phylogenetic study of . Overall, our study yielded valuable insights into the evolutionary history and taxonomic relationship of and these results will help to better explain the gene rearrangement events of the invertebrate mitogenome and lay the foundation for further phylogenetic study of .

Citing Articles

Mitochondrial genomic characterization of two endemic Chinese freshwater crabs of the genus (Brachyura: Potamidae) and implications for biogeography analysis of Potamidae.

Shen Y, Li Q, Cheng R, Luo Y, Zhang Y, Zuo Q Ecol Evol. 2023; 13(3):e9858.

PMID: 36911301 PMC: 9994612. DOI: 10.1002/ece3.9858.

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