Annals of the Entomological Society of America (2002) 95, 29-34

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Yi Chen, Kristopher L Giles and Matthew H. Greenstone (2002)
Molecular evidence for a species complex in the genus Aphelinus (Hymenoptera: Aphelinidae), with additional data on Aphidiine phylogeny (Hymenoptera: Braconidae)
Annals of the Entomological Society of America 95 (1), 29-34
Abstract: Mitochondrial 16s rDNA was sequenced from nine different populations of Aphelinidae and 10 of aphidiinae. Sequence divergences between populations within a species are low, ranging from 0 to 0.38%. Divergences among species within the same genus range from 0 to 8.71%. Aphelinus asychis Walker has a sequence divergence from the other Aphelinus spp. of 8.71%, which is even higher than the divergences among the aphidiine genera Lysiphlebus, Aphidius and Diaeretiella. Our 16s rDNA phylogeny for aphidiines is concordant with a previously published NADH1 dehydrogenase phylogeny. Our analysis identifies a complex comprising A. albipodus (Hayat and Fatima), A. varipes (Foerster), and A. hordei (Kurdjumov). The sequence divergences within this complex are low, ranging from 0 to 0.38% with an average of 0.19%, which suggests that the three species within the A. varipes complex diverged within the last ~90,000 yr.
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Database assignments for author(s): Matthew H. Greenstone, Yi Chen

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
identification/taxonomy


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Aphelinus (genus - parasitoids)
Lysiphlebus (genus - parasitoids)
Aphelinus asychis (parasitoid)
Aphidius (genus - parasitoids)
Aphelinus albipodus (parasitoid)
Aphelinus hordei (parasitoid)
Aphelinus varipes (parasitoid)
Diaeretiella (genus - parasitoids)