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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Availability of Myoglobin as a Molecular Marker for Phylogenetic Relationships of Fish
Author(s)
Ming-Chih Huang1, Yoshihiro Ochiai2 and Shugo Watabe3
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DOI:10.17265/2161-6264/2018.02.007
Affiliation(s)
1. Department of Biological Sciences and Technology, National University of Tainan, 33, Sec.2, Shu-Lin St.,Tainan 700-05, Taiwan R.O.C.
2. Graduate School of Agricultural Science, Tohoku University, Aramaki, Aoba-ku, Sendai, Miyagi 980-0845, Japan
3. School of Marine Biosciences, Kitasato University, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
ABSTRACT
In order to elucidate the phylogenetic relationship of fish, DNA and
deduced amino acid sequences of myoglobin (Mb) were used for the phylogenetic
analyses based on different approaches, namely, maximum likelihood (ML), neighbor joining (NJ), unweighted pair group method with
arithmetic means (UPGMA) and maximum
parsimony (MP) methods in
comparison with the conventional molecular markers, mitochondrial cytochrome b (cyt-b) and cytochrome c oxidase subunit I (COI). The
phylogenetic trees drawn based on Mb sequences were similar to those by the
traditional classification based on the other molecular markers. The primary
and secondary structures, as well as the modeled
tertiary structures of Mbs were similar to each other, but were clearly
distinguishable among those species. Such differences in structure would be
associated with adaptation of Mb molecule to the physiological conditions of
each species. These results suggest that Mb can be a molecular marker for the
phylogenetic relationship of fish.
KEYWORDS
Myoglobin, mitochondrial cytochrome b (cyt-b), cytochrome c oxidase subunit I (COI), phylogeny.
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