Molecular and behavioural evidence for gene flow between host races of the larch budmoth Zeiraphera diniana (Lepidoptera: Tortricidae)

Citation:

Drès, M., & Mallet, J. (2005). Molecular and behavioural evidence for gene flow between host races of the larch budmoth Zeiraphera diniana (Lepidoptera: Tortricidae). Proceedings of the Royal Society B , Submitted.

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Abstract:

Larch and pine associated populations of Zeiraphera diniana (Lepidoptera: Tortricidae) differin a number of heritable traits, but pheromone-mediated cross-attraction occurs betweenthem in the wild. Using a quartet mate choice design (one male and one female of each typeper cage) we estimate that, following cross-attraction by pheromones, the subsequentprobability of hybridization is approximately 28%. We also examined molecular data, andwere unable to distinguish between the races on the basis of 695bp of mitochondrial COI,tRNA-leucine, and COII gene sequence. Both results support earlier field studies suggestingthat larch- and pine-feeding populations are host races that hybridize at an appreciable levelin the wild. The shared mitochondrial haplotypes we observed are also consistent withongoing and successful gene flow between the two host races.

Last updated on 10/12/2016

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