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Phylogeny, diversification and biogeography of Garra (Cypriniformes: Cyprinidae) reveals multiple cross-drainage dispersals in Southeast Asia
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  • Zhi-Bang Wang,
  • Thaung Naing Oo,
  • Lan-Ping Zheng,
  • Xiaoyong Chen
Zhi-Bang Wang
Kunming Institute of Zoology Chinese Academy of Sciences
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Thaung Naing Oo
Forest Department, Ministry of Natural Resources and Environmental Conservvation
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Lan-Ping Zheng
Yunnan University of Traditional Chinese Medicine
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Xiaoyong Chen
Kunming Institute of Zoology, Chinese Academy of Sciences

Corresponding Author:[email protected]

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Abstract

Garra is a kind of small- to medium-sized fish that is widely distributed from southern Eurasia to central Africa. As one of the most diverse genera of Cyprinidae, investigating the phylogeny and biogeography of Garra remains challenging. In this study, we combined sequences of Garra samples collected from Myanmar with sequences downloaded from GenBank to investigate the phylogeny, diversification, and biogeography of Garra on a global scale, with an emphasis on Southeast Asia. Species delimitation results indicated that there are at least 22 potential species, including eight undescribed species in Myanmar, suggesting that the diversity of Garra in this region have been largely underestimated. Diversification analysis suggested a relatively high diversification rate in the early branches of Garra. Ancestral distribution reconstruction results revealed that Garra originated from the Southeast Asia in the late Eocene, approximately 34 million years ago, with subsequent dispersals across different drainages influenced by the uplift of the Qinghai-Tibet Plateau. Our study provided a new insight into the evolutionary history of Garra and the basis for further research on this genus.
02 Sep 2024Submitted to Ecology and Evolution
05 Sep 2024Submission Checks Completed
05 Sep 2024Assigned to Editor
06 Sep 2024Review(s) Completed, Editorial Evaluation Pending
30 Sep 2024Editorial Decision: Accept