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Genetic diversity and phylogenetic relationship of catfish order siluriformes inferred from mitochondrial gene sequence variation
8th International Conference on Fisheries & Aquaculture
October 02-04, 2017 Toronto, Canada
Lashari Punhal, Muhammad Younis Laghari, Xiaowen Sun,Yan Zhang and Yulin Deng
University of Sindh, Pakistan
Chinese Academy of Fishery Sciences, China
Beijing Institute of Technology, China
Scientific Tracks Abstracts: J Aquac Res Development
Abstract:
Order Siluriformes includes many commercially and economically important species throughout the world. Here, we investigated genetic relationships and diversity in this order. Sequence comparisons and phylogenetic analyses revealed considerable variations between mitochondrial CO1 genes among twenty-four siluriformes species. The nucleotide frequencies are A=23.80%, T/ U=29.62%, C=26.63%, and G=19.95%. For estimating ML values, a user-specified toplogy was used. The maximum Log likelihood for this computation was -9413.645. Estimates of average evolutionary divergence over all sequence and the numbers of base substitutions per site from averaging over all sequence pairs were 4.984. Our results suggest that Batasio tranvancoria formed a single clade; R. Rita, W. Attu, M. Montanus and B. Bagarius comprised a single separate family; and M. Vittatus, M. Horai, B. Tengana, M. Malabaricus, M. Bacourti, M. Singaringan, M. Bleekeri, M. Gulio, M. Multiradiatus, M. Rhegma, M. Cavasius, M. Tengara, S. Aor, S. Seenghala, B. Bajad, B. Filamentosus, B. Macracanthus, P. Siamensis, E. Vacha and B. Travancoria formed single subfamily.
Biography :
Punhal Khan Lashari is working as an Associate Professor in the Department of Fresh Water Biology and Fisheries, University of Sindh, Pakistan. He is responsible to conduct research in the field of Fish genetics/Fisheries Biology/Aquaculture from various aspects. His research mainly focuses on aquaculture, aquatic ecology, fish biology, fish genetics, and fish health management.