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International Journal of
Zoology Studies
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VOL. 11, ISSUE 2 (2026)
Molecular phylogenetic analysis of eight Nymphalidae butterfly species based on mitochondrial COI gene
Authors
Monika Jagarwal, Priyanka Verma, Ghanshyam Kachhawa
Abstract
The mitochondrial cytochrome c oxidase subunit I (COI) gene is widely acknowledged as a reliable molecular marker for phylogenetic research and species identification. This study investigated the molecular phylogenetics of eight butterfly species belonging to the family Nymphalidae: Danaus chrysippus, Danaus genutia, Hypolimnas bolina, Hypolimnas misippus, Junonia lemonias, Junonia orithya, Melanitis leda, and Phalanta phalantha. The nucleotide composition showed strong AT bias (70.32%) compatible with mitochondrial DNA characteristics of Lepidoptera. Pairwise genetic distance analysis showed lowest divergence between Junonia lemonias and Junonia orithya (0.0074) and the highest between Melanitis leda and Phalanta phalantha (0.1903). The mean intra-generic distance (0.050) was significantly lower than the mean inter-generic distance. The transition/transversion bias (R = 0.82) indicated conserved mitochondrial evolution in insects. The Neighbour Joining phylogenetic tree showed clear genus-level clustering with strong bootstrap support. These results confirmed the effectiveness of the COI gene as a reliable DNA barcode. It is useful for species identification and phylogenetic analysis in Nymphalidae butterflies.
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Pages:115-118
How to cite this article:
Monika Jagarwal, Priyanka Verma, Ghanshyam Kachhawa "Molecular phylogenetic analysis of eight <i>Nymphalidae</i> butterfly species based on mitochondrial COI gene". International Journal of Zoology Studies, Vol 11, Issue 2, 2026, Pages 115-118
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