TY - JOUR
T1 - Speciation and differentiation of the genus Opsariichthys (Teleostei
T2 - Cyprinidae) in East Asia
AU - Lin, Hung Du
AU - Kuo, Po Hsun
AU - Wang, Wei Kuang
AU - Chiu, Yuh Wen
AU - Ju, Yu Min
AU - Lin, Feng Jiau
AU - Hsu, Kui Ching
N1 - Funding Information:
The corresponding author is very grateful for grant support from Academia Sinica , Nankang, Taipei, Taiwan, from 2007 to 2011. We also thank Prof. J. P. Wang and T. Y. Chiang, Department of Life Sciences, National Cheng Kung University, for the collection of specimens. Part of this work was carried out using the resources of the Computational Biology Service Unit from Cornell University, which is partially funded by Microsoft Corporation . We also thank the anonymous referees for their helpful comments. We thank the National Natural Science Foundation of China (No. 41476149 ).
Publisher Copyright:
© 2016 Elsevier Ltd
PY - 2016/10/1
Y1 - 2016/10/1
N2 - The genus Opsariichthys is an endemic and widespread cyprinid genus in East Asia, but the speciation and differentiations are still unknown. This study examined the phylogeography of the genus Opsariichthys using mitochondrial DNA cytochrome b sequences (1140 bp) with extensive sampling throughout its distribution range. In total, 444 specimens belonging to seven Opsariichthys species were collected from 43 populations. The time coalescing to the genus Opsariichthys could be traced back to the late Miocene [TMRCA = 6.43 mya (million years ago)]. The interspecies differentiations occurred in two phases, Pliocene (>2 mya, Opsariichthys uncirostris, Opsariichthys bidens, Opsariichthys evolans, Opsariichthys kaopingensis and Opsariichthys pachycephalus) and Pleistocene (<2 mya, Opsariichthys minutus and Opsariichthys hainanensis). The results of a statistical dispersal-vicariance analysis suggested that the ancestral populations of the genus Opsariichthys were widely distributed over East Asia before diversification. Our study showed that the cyclic tectonic movements and climate changes may have shaped speciation, migrations and population differentiations. Moreover, our study considered the colonization times and migrating potentiality that could affect the Opsariichthys species’ distribution ranges and intraspecific genetic variation patterns.
AB - The genus Opsariichthys is an endemic and widespread cyprinid genus in East Asia, but the speciation and differentiations are still unknown. This study examined the phylogeography of the genus Opsariichthys using mitochondrial DNA cytochrome b sequences (1140 bp) with extensive sampling throughout its distribution range. In total, 444 specimens belonging to seven Opsariichthys species were collected from 43 populations. The time coalescing to the genus Opsariichthys could be traced back to the late Miocene [TMRCA = 6.43 mya (million years ago)]. The interspecies differentiations occurred in two phases, Pliocene (>2 mya, Opsariichthys uncirostris, Opsariichthys bidens, Opsariichthys evolans, Opsariichthys kaopingensis and Opsariichthys pachycephalus) and Pleistocene (<2 mya, Opsariichthys minutus and Opsariichthys hainanensis). The results of a statistical dispersal-vicariance analysis suggested that the ancestral populations of the genus Opsariichthys were widely distributed over East Asia before diversification. Our study showed that the cyclic tectonic movements and climate changes may have shaped speciation, migrations and population differentiations. Moreover, our study considered the colonization times and migrating potentiality that could affect the Opsariichthys species’ distribution ranges and intraspecific genetic variation patterns.
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U2 - 10.1016/j.bse.2016.07.001
DO - 10.1016/j.bse.2016.07.001
M3 - Article
AN - SCOPUS:84977676977
SN - 0305-1978
VL - 68
SP - 92
EP - 100
JO - Biochemical Systematics and Ecology
JF - Biochemical Systematics and Ecology
ER -