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- Detection and Characterization of Wolbachia in Cotesia plutellae (Kurdjumov) (Hymenoptera: Braconidae), a Parasitoid of the Diamond Back Moth Plutella xylostella (Linn.)
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Authors
Affiliations
1 National Bureau of Agriculturally Important Insects, Post Bag No. 2491, H. A. Farm Post, Bellary Road, Bangalore, 560024, Karnataka, IN
1 National Bureau of Agriculturally Important Insects, Post Bag No. 2491, H. A. Farm Post, Bellary Road, Bangalore, 560024, Karnataka, IN
Source
Journal of Biological Control, Vol 25, No 3 (2011), Pagination: 213-216Abstract
Cotesia plutellae (Kurdjumov) is an indigenous, larval endoparasitoid that attacks mid instar larvae of the diamond back moth (DBM). Although the parasitoid is distributed widely, not all local populations appear to be equally effective in controlling the DBM. Bacterial endosymbionts may play regulatory role in determining their efficiency. Field collected C. plutellae populations from cauliflower fields were assessed for the prevalence of the bacterial endosymbionts. Bacterial endosymbionts in the genus Wolbachia were detected in the populations obtained from Hoskote (Karnataka) and Thirupathi (Andhra Pradesh). PCR amplification using specific primers for Wolbachia revealed 528 and 518 bp for the populations, respectively. Sequencing of the Wolbachia surface protein, wsp, revealed Wolbachia infection to be related to Wolbachia endosymbiont of Cotesia glomerata outer surface protein, wsp gene (Genbank Accession No. AB094202) with maximum identity of 99% with BLAST search of NCBI. The sequence was submitted to the GenBank with the Accession No. JF421566. The detection of Wolbachia in the parasitoid signifying its role in biological manipulations of the parasitoid for enhanced efficiency is discussed.Keywords
Wolbachia, Characterization, Cotesia plutellae, Cabbage, Plutella xylostella.Full Text
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- Characterization and Identification of Acerophagus papayae Noyes and Schauff (Hymenoptera: Encyrtidae), an Introduced Parasitoid of Papaya Mealybug, Paracoccus marginatus Williams and Granara De Willink through DNA Barcode
Abstract Views :545 |
PDF Views:168
Authors
Affiliations
1 National Bureau of Agriculturally Important Insects, P.B. No. 2491, H.A. Farm Post, Hebbal, Bangalore 560 024, Karnataka, IN
1 National Bureau of Agriculturally Important Insects, P.B. No. 2491, H.A. Farm Post, Hebbal, Bangalore 560 024, Karnataka, IN
Source
Journal of Biological Control, Vol 25, No 1 (2011), Pagination: 11–13Abstract
The papaya mealybug, Paracoccus marginatus Williams and Granara de Willink, is a serious invasive pest in India and causes severe yield loss. Acerophagus papayae Noyes and Schauff (Encyrtidae) is one of the efficient parasitoids for the suppression of papaya mealybug in its native range. This parasitoid was introduced from Puerto Rico in 2010 through USDA-APHIS for use against the papaya mealybug. Subsequently, natural occurrence of the parasitoid was observed in mealybug infested papaya fields at Pune and the parasitoid was identified as A. papayae based on morphology based taxonomy at NBAII. The study was undertaken for the DNA barcoding of A. papayae, using CO1 region in order to supplement and confirm that the introduced and Pune populations belonged to the same species and the study revealed that the A. papayae populations from Pune and USA are one and the same having fragment size of ~673bp.Keywords
Papaya Mealybug, Paracoccus Marginatus, Acerophagus Papayaa, Cytochrome C Oxidase-I (CO1), DNA Barcode.Full Text
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