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Insight into the Threadfin (Perciformes: Polynemidae) Diversity of Indian Waters using Mitochondrial COI Signatures

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Relation http://eprints.cmfri.org.in/15262/
https://link.springer.com/article/10.1007%2Fs41208-021-00332-1
https://doi.org/10.1007/s41208-021-00332-1
 
Title Insight into the Threadfin (Perciformes: Polynemidae) Diversity
of Indian Waters using Mitochondrial COI Signatures
 
Creator Gopalakrishnan, A
Vineesh, N
Ismail, Shihab
Akhilesh, K V
Muktha, M
Vijayagopal, P
 
Subject Fish Biotechnology
Fish and Fisheries
 
Description Threadfns (Perciformes: Polynemidae) are commercially important, highly prized table fshes in India. In this study, we
analysed the mitochondrial COI gene for validating species identifcation and phylogeny of threadfns occurring in Indian
waters. Consequently, we developed barcodes for ten polynemids belonging to the genera Polydactylus, Eleutheronema,
Leptomelanosoma, Filimanus and Polynemus. The K2P distance within the polynemid species in Indian waters ranged from
zero to 0.8%. Nucleotide composition was estimated as adenine (A)=22.5%, thymine (T)=28.7%, cytosine (C)=29.7% and
guanine (G)=19.1%. The average transitional pairs (75.8) were more frequent than the average transversional pairs (24.2)
with an estimated Transition/Transversion bias (R) of 3.33. Cryptic species were observed in Polydactylus and Eleutheronema
indicating the need for detailed studies on the taxonomy of polynemids globally. The present study determines the utility of
DNA barcodes in species identifcation in polynemids.
 
Date 2021
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/15262/1/Thalassas%20An%20International%20Journal%20of%20Marine%20Sciences%20_2021_A%20Gopalakrishnan.pdf
Gopalakrishnan, A and Vineesh, N and Ismail, Shihab and Akhilesh, K V and Muktha, M and Vijayagopal, P (2021) Insight into the Threadfin (Perciformes: Polynemidae) Diversity of Indian Waters using Mitochondrial COI Signatures. Thalassas: An International Journal of Marine Sciences. pp. 1-13.