Publication: Molecular and morphological evidence supports the species status of the Mahachai fighter Betta sp. Mahachai and reveals new species of Betta from Thailand
Issued Date
2010-08-01
Resource Type
ISSN
10958649
00221112
00221112
Other identifier(s)
2-s2.0-77955044322
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Fish Biology. Vol.77, No.2 (2010), 414-424
Suggested Citation
N. Sriwattanarothai, D. Steinke, P. Ruenwongsa, R. Hanner, B. Panijpan Molecular and morphological evidence supports the species status of the Mahachai fighter Betta sp. Mahachai and reveals new species of Betta from Thailand. Journal of Fish Biology. Vol.77, No.2 (2010), 414-424. doi:10.1111/j.1095-8649.2010.02715.x Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/28479
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Title
Molecular and morphological evidence supports the species status of the Mahachai fighter Betta sp. Mahachai and reveals new species of Betta from Thailand
Other Contributor(s)
Abstract
Two regions of mitochondrial (mt) DNA, cytochrome c oxidase subunit 1 (COI) and 16S rRNA, were sequenced in nine species of Betta from Thailand and Indonesia. Most species showed little intraspecific COI variation (adjusted mean = 0.48%) including the putative species Betta sp. Mahachai, but one species (Betta smaragdina) included three lineages showing much greater divergence (7.03-13.48%) that probably represent overlooked species. These findings were confirmed by maximum likelihood analysis and Bayesian inference, which revealed well-supported corresponding monophyletic clades. Based on these results and morphological differences, the putative species Betta sp. Mahachai from central Thailand is a species distinct from other members of the B. splendens group and represents a new and hitherto undescribed species. Furthermore, this study also demonstrated the probable existence of two overlooked Betta species found in the Khorat plateau basin, illustrating the utility of mitochondrial genetic markers in the revelation of overlooked diversity. © 2010 Institute for Innovative Learning, Mahidol University. Journal compilation © 2010 The Fisheries Society of the British Isles.