Genetic analysis of rice caseworm, Parapoynx stagnalis to determine its phylogenetic status

Mashhoor Kattali, Lazar Varkey Kottickal, Shanas Sudheer, Narayanaperumal Ramesh



Parapoynx stagnalis (Nymphula depunctalis) is one of the major lepidopteran pests of paddy. The insect larvae infests the paddy at its younger stage and also form a case with the tip of the leaf cut by the worm, which gives protection from its enemies and also helps its movement from one plant to the other. P. stagnalis is widely distributed and is reported from Asia, Africa, South America and Australia. Here we report the partial sequence of cytochrome oxidase subunit 1 (COI) of P. stagnalis isolated from Kuttanadu, Kerala. The COI sequence of P. stagnalis isolated from Kuttanadu is distinct from that isolated from Australia, Indonesia and Philippines. The DNA sequence analysis revealed that P. stagnalis isolated from Kuttanadu is phylogenetically closer to those from Philippines and Indonesia.


cytochrome oxidase, integrated pest management, Parapoynx stagnalis, phylogeny

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