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Application of DNA Barcoding to Identify Medicinal Plants

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Published on: November 1, 2024

DNA barcoding Indian marine fishes.

W S Lakra¹, M S Verma, M Goswami

¹National Bureau of Fish Genetic Resources, Lucknow-226002, India. wslakra@gmail.com

Molecular Ecology Resources

|March 25, 2011

Summary

This summary is machine-generated.

India

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Area of Science:

Marine Biology
Genomics
Biodiversity Assessment

Background:

DNA barcoding is a crucial tool for global animal bio-identification.
A national program in India focused on DNA barcoding of marine fish.
Previous barcoding efforts in the Indian Ocean were limited.

Purpose of the Study:

To establish a DNA barcode reference library for Indian marine fish.
To assess the genetic diversity and phylogenetic relationships of marine fish species.
To validate DNA barcoding as a method for fish identification.

Main Methods:

DNA barcoding of 115 marine fish species from the Indian Ocean using the cytochrome c oxidase I (COI) gene.
Amplification and sequencing of a 707 base pair fragment of COI, yielding a 655 base pair barcode sequence.
Analysis of genetic distances (Kimura two-parameter) and construction of phylogenetic trees (neighbor-joining).

Main Results:

Successfully barcoded 115 marine fish species, generating 397 COI sequences.
Observed low intra-specific (0.30%) and high inter-specific genetic distances.
Phylogenetic analysis revealed distinct clusters aligning with established taxonomic classifications.

Conclusions:

The study established a foundational DNA barcode library for Indian marine fish.
DNA barcoding proved effective for species identification and phylogenetic inference in marine fish.
This work supports biodiversity monitoring and conservation efforts in the Indian Ocean.