Molecular and biological characterization of Trichogramma turkestanica (Hymenoptera: Trichogrammatidae) which inhabits Taif governorate at the west of Saudi Arabia

Parasitoids of Trichogramma (Hymenoptera: Trichogrammatidae) parasitize the eggs of many species of Lepidoptera and have been used for the biological control of numerous pest species. We collected this parasitoid from Taif governorate, KSA in summer of 2009. It is difficult to differentiate between...

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Bibliographic Details
Published in:African journal of biotechnology 2011-08, Vol.10 (46), p.9467-9472
Main Authors: Samy, M Sayed, Ahmed, M El Shehawi, Saad, A Al Otaibi
Format: Article
Language:English
Subjects:
Hymenoptera
Lepidoptera
Trichogramma
Trichogramma turkestanica
Trichogrammatidae
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Description
Summary:Parasitoids of Trichogramma (Hymenoptera: Trichogrammatidae) parasitize the eggs of many species of Lepidoptera and have been used for the biological control of numerous pest species. We collected this parasitoid from Taif governorate, KSA in summer of 2009. It is difficult to differentiate between Trichogramma species because of their small size and lack of differences in morphological characters. Therefore, different molecular markers were employed to characterize this species, including direct amplification of the internal transcribed spacer 2 (ITS2) of ribosomal DNA and by restriction fragment length polymorphism followed by sequencing. The results show that ITS2 region is 491 bp and indicated that this is a new stain of Trichogramma. We named this strain TaifKSA. From the tested restriction enzymes, only EcoRI and PstI cut the PCR product of ITS2 region. We compared the biological characteristics of the strain under investigation with other commercial strain (SQG) of the same species and no significant differences between them have been shown.
ISSN:1684-5315
1684-5315
DOI:10.5897/AJB11.868