Volume 14, Issue 20 (2012)                   JAST 2012, 14(20): 1453-1463 | Back to browse issues page

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Rahimi Kaldeh S, Hosseini R, Hajizadeh J, Sohani M M. Molecular Identification and Detection of Lysiphlebus fabarum (Hym.: Braconidae): A Key Parasitoid of Aphids, by Using Polymerase Chain Reaction. JAST. 14 (20) :1453-1463
URL: http://journals.modares.ac.ir/article-23-6503-en.html
1- Department of Plant Protection, College of Agriculture Sciences, University of Guilan, Rasht, Islamic Republic of Iran.
2- Department of Biotechnology, College of Agriculture Sciences, University of Guilan, Rasht, Islamic Republic of Iran.
Abstract:   (6865 Views)
All species in the genus Lysiphlebus Förster (Hymenoptera: Braconidae, Aphidiinae) are solitary endoparasitoids of aphids, which are one of the most difficult and unknown taxonomic groups to identify. A pair of species-specific primers as a molecular marker was designed to identify the most abundant and important aphid parasitoid wasp, L. fabarum Marshall, collected from Guilan province (Iran). This primer pair, which produces a 148 bp fragment length, was developed for L. fabarum by using the ATPase 6 gene region of mitochondrial DNA. The lower detection limit to amplify DNA of L. fabarum in a singleplex PCR was determined to be 72 pg of parasitoid DNA/µl PCR which was enough to detect this parasitoid in early life stages within its host. The L. fabarum eggs cannot be detected within Aphis fabae Scopoli (Hemiptera: Aphididae) earlier than 12 hours after oviposition. A pair of species specific primers designed for L. fabarum can be used to monitor the wasp populations under field conditions.
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Received: 2011/01/27 | Accepted: 2011/12/24 | Published: 2012/11/21

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