Host strain specific sex pheromone variation in Spodoptera frugiperda.

ABSTRACT:

Background

The fall armyworm Spodoptera frugiperda (Lepidoptera; Noctuidae) consists of two distinct strains with different host plant preferences for corn and rice. To assess whether pheromonal-mediated behavioral isolation accompanies the habitat isolation on different host plants, we compared the sex pheromone composition among females of the two strains. Pheromone glands were extracted with or without injection of pheromone biosynthesis activating neuropeptide (PBAN). To assess the mode of inheritance of this variation, we also analyzed the pheromone composition of F1 hybrid females.

Results

Relative to intra-strain variation, the pheromone composition of the two strains differed significantly. Corn strain females contained significantly more of the second most abundant

SUBMITTER: Groot AT 

PROVIDER: S-EPMC2628650 | biostudies-literature | 2008 Dec

REPOSITORIES: biostudies-literature