Fine-scale frequency differentiation along a herbivory gradient in the trichome dimorphism of a wild Arabidopsis.

ABSTRACT: Geographic variation is commonly observed in plant resistance traits, where plant species might experience different selection pressure across a heterogeneous landscape. Arabidopsis halleri subsp. gemmifera is dimorphic for trichome production, generating two morphs, trichome-producing (hairy) and trichomeless (glabrous) plants. Trichomes of A. halleri are known to confer resistance against the white butterfly, cabbage sawfly, and brassica leaf beetle, but not against flea beetles. We combined leaf damage, microclimate, and microsatellite loci data of 26 A. halleri populations in central Japan, to explore factors responsible for fine-scale geographic variation in the morph frequency. We found that hairy plants were less damaged than glabrous plants within popula

SUBMITTER: Sato Y 

PROVIDER: S-EPMC5383478 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature