Morphological and Molecular Characterization of Several Neogastropod Species (Mollusca: Gastropoda) From Coastal Waters of Bangladesh With One New Record

Authors

  • KS Sultana Aquatic Bioresource Research Lab., Department of Fisheries Biology and Genetics, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh
  • PS Brishti Aquatic Bioresource Research Lab., Department of Fisheries Biology and Genetics, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh
  • S Ahmed Department of Zoology, Jagannath University, Dhaka-1100, Bangladesh
  • MB Billah Department of Zoology, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
  • KA Habib Aquatic Bioresource Research Lab., Department of Fisheries Biology and Genetics, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

DOI:

https://doi.org/10.3329/jbs.v29i0.54824

Keywords:

Bangladesh, DNA barcoding, Genetic distance, Indothais rufotincta, Neogastropoda, Phylogeny

Abstract

The present study reports the morphological and molecular characterization of marine neogastropods collected from the South-East to the South-West coasts of Bangladesh. A total of 21 species under 13 families were identified morphologically, of which 7 species were barcoded successfully using partial sequence of mitochondrial cytochrome oxidase subunit-I (COI) gene. The average nucleotide frequencies of these species were G (guanine) = 20.57%, C (cytosine) = 18.44%, A (adenine) = 23.65%, T (thymine) = 37.35% and the GC content was 39.01%. The average Kimura two-parameter (K2P) distances of the COI barcode sequences within species, genera, and families were 20.7%, 22.0%, and 22.0%, respectively. The average inter-species genetic divergence was calculated as 21.0%. In addition, the COI barcode sequence of Nassarius stolatus was identified and submitted to the GenBank for the first time. The study also reports the new record of a species, Indothais rufotincta Tan & Sigurdsson, 1996 from Bangladesh. This finding greatly extends the distributional range of this species from the West coast to the East coast of the Bay of Bengal.

J. Bio-Sci. 29(1): 79-91, 2021 (June)

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Published

2021-07-11

How to Cite

Sultana, K. ., Brishti, P. ., Ahmed, S. ., Billah, M. ., & Habib, K. . (2021). Morphological and Molecular Characterization of Several Neogastropod Species (Mollusca: Gastropoda) From Coastal Waters of Bangladesh With One New Record. Journal of Bio-Science, 29, 79–91. https://doi.org/10.3329/jbs.v29i0.54824

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