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      Phylogenetic implications of mitogenome rearrangements in East Asian potamiscine freshwater crabs (Brachyura: Potamidae)

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      Molecular Phylogenetics and Evolution
      Elsevier BV

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          Abstract

          We present here a combined mitogenome gene order dataset totalling 62% of the known genera of East Asian potamiscine freshwater crabs that includes first-time mitogenome data for 14 species and gene order data from 37 other species of potamiscines. A surprisingly high number of mitogenome gene order rearrangements were found in the taxa studied (comprising nine different rearrangements and seven major patterns, one of which has two sub-arrangements). Our phylogenetic reconstructions indicate that the mitogenome gene order rearrangements are associated with the evolutionary history of potamiscine lineages. We also used a new Event-based Maximum Parsimony method to reconstruct ancestral gene orders, which takes into consideration gene duplication, pseudogeneticization, and tandem duplication random loss. Furthermore, shared mitogenome gene order patterns were used to inform the taxonomic placement of Sinopotamon parvum, and the cryptic diversity in Potamiscus. The remarkably frequent mitogenome rearrangements in potamiscine freshwater crabs have great potential to contribute to our understanding of the evolutionary history of these highly diverse decapods in East Asia.

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          Author and article information

          Journal
          Molecular Phylogenetics and Evolution
          Molecular Phylogenetics and Evolution
          Elsevier BV
          10557903
          November 2019
          November 2019
          : 106669
          Article
          10.1016/j.ympev.2019.106669
          31698050
          6f753697-b728-491c-a12d-e4f88ac72223
          © 2019

          https://www.elsevier.com/tdm/userlicense/1.0/

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