Molecular identification of arowana species based on cytochrome B and cytochrome C oxidase I (COI) / Maryam Zahedi Fard
Mitochondrial DNA (mtDNA) markers has been widely used to better resolve the taxonomic identification as well as display the genetic relatedness of different species and closely related fish. The highly cost ornamental fish, Asian arowana (Scleropages formosus) of family Osteoglossidae has differ...
| المؤلف الرئيسي: | |
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| التنسيق: | أطروحة |
| منشور في: |
2010
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| الموضوعات: |
| الملخص: | Mitochondrial DNA (mtDNA) markers has been widely used to better resolve the
taxonomic identification as well as display the genetic relatedness of different species and
closely related fish. The highly cost ornamental fish, Asian arowana (Scleropages
formosus) of family Osteoglossidae has different colored strains that are geographically
distributed in different regions around Southeast Asia. The taxonomic classification of
these different strains still remains unclear and disputable. The partial sequences of the
cytochrome b and the DNA barcoding gene, cytochrome C oxidase were analyzed and
assessed for molecular identification; to differentiate the colored varieties of this species.
The results of this study indicated that there was lack of both COI and cytochrome mtDNA
differentiation among the red and golden main varieties that it did not indicate emergence
of new species. However, the partial sequences of the genes are sufficient to identify the
species when compared to its closely related species as well as the green strains compared
to other strains of the Asian arowana. In the future, more markers will be used to obtain a
more concrete evidence to support the existence of a relationship among Arowana starians. |
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