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- Title
MORPHOLOGICAL AND MOLECULAR IDENTIFICATION OF SITOPHILUS ORYZAE LINNAEUS AND SITOPHILUS ZEAMAIS MOTSCHULSKY (COLEOPTERA: CURCULIONIDAE).
- Authors
Kaundal, Priyanka; Padwal, Kanchan Gangaram; Singh, R. N.; Srivastava, C. P.
- Abstract
Sitophilus oryzae (L.) and S. zeamais (Motschulsky) are the two main species under the genus Sitophilus that occur mainly on storage grains in tropical and subtropical regions. Both species are pests of economic importance and have morphological resemblance with each other. Identification of these two closely related species of Sitophilus was done based on their morphological characteristics and mitochondrial COI genes. Morphological characters included pronotal punctures and adult genitalia, which showed significant differences. Adult morphometrics also revealed significant variations in the length and width of both male and female weevils. The body length and width of S. oryzae were 2.61 × 0.77 mm (male) and 3.04 × 0.86 mm (female), respectively. Whereas, in S. zeamais the values were 3.41 × 1.03 mm and 3.86 × 1.11 mm. The molecular analysis using Cox1 gene also confirmed the morphological identification and taxonomic status of the species in phylogenetic trees.
- Subjects
RICE weevil; CORN weevil; BEETLES; CURCULIONIDAE; GRAIN storage; LEAF spots; PYRICULARIA oryzae
- Publication
Journal of Experimental Zoology India, 2023, Vol 26, Issue 2, p2157
- ISSN
0972-0030
- Publication type
Article
- DOI
10.51470/jez.2023.26.2.2157