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DNA Barcoding Reveals Species Diversity and Host Associations of Dryinidae Wasps (Insecta, Hymenoptera): A Case Study from the Xisha Islands in the South China Sea
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DNA Barcoding Reveals Species Diversity and Host Associations of Dryinidae Wasps (Insecta, Hymenoptera): A Case Study from the Xisha Islands in the South China Sea
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DNA Barcoding Reveals Species Diversity and Host Associations of Dryinidae Wasps (Insecta, Hymenoptera): A Case Study from the Xisha Islands in the South China Sea
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Journal Article
DNA Barcoding Reveals Species Diversity and Host Associations of Dryinidae Wasps (Insecta, Hymenoptera): A Case Study from the Xisha Islands in the South China Sea
2024
Overview
Dryinidae are a diverse family of parasitoids, and they are important natural enemies of Auchenorrhyncha (Hemiptera) pests. A comprehensive understanding of the diversity and host interaction networks of these parasitoids is critical to their application in biological control programs and their conservation. However, traditional methods such as morphological identification and rearing are insufficient to understand the diversity and host associations of dryinids. In this paper, we assessed the effectiveness of DNA barcode techniques for surveying dryinid diversity and their host associations on the Xisha Islands. Based on the analyses of the mitochondrial cytochrome c oxidase subunit I (COI) sequences of adults and larvae, we recognized 11 dryinid species, including an undescribed species and one re-instated species, on the Xisha Islands. We also confirmed the host associations of each dryinid species and constructed a dryinid–hopper interaction network which suggests that the population sizes of some dryinid species are extremely small and further conservation assessments of dryinids for the Xisha Islands are needed. Our study demonstrates that DNA barcoding methods are potent for assessing parasitoid diversity and their host associations.
Publisher
MDPI AG,MDPI
Subject
