Show simple item record Sato, Yasuhiro Kudoh, Hiroshi
dc.coverage.spatial Japan 2017-03-07T15:30:46Z 2017-03-07T15:30:46Z 2017-06-07
dc.identifier doi:10.5061/dryad.53k2d
dc.identifier.citation Sato Y, Kudoh H (2017) Herbivore-mediated interaction promotes the maintenance of trichome dimorphism through negative frequency-dependent selection. The American Naturalist 190(3): E67-E77.
dc.identifier.issn 0003-0147
dc.description Natural plant populations exhibit genetic variation in defense traits against herbivores. Despite a growing body of evidence for herbivore-mediated selection on plant defenses, we still know little about how genetic variation persists in antiherbivore defense traits. Here we present field and experimental evidence for herbivore-mediated frequency-dependent selection that promotes the maintenance of trichome-producing (hairy) and trichomeless (glabrous) plants of Arabidopsis halleri subsp. gemmifera. First, in a natural population where the specialist leaf beetle Phaedon brassicae was prevalent, hairy plants were damaged less when the frequency of neighboring glabrous plants increased. Furthermore, temporal variation in the frequency of the two plant morphs showed that rarer morphs increased in frequency at the scale of 1-m-diameter patches between survey years. Using a mesocosm experiment, we demonstrated a rare-morph advantage for defense (leaf damage and herbivore abundance) and reproduction (flower and clone production) between hairy and glabrous plants in the presence of P. brassicae. However, this rare-morph advantage was not detected when beetles were absent, with glabrous plants having higher reproduction than hairy plants under these conditions regardless of frequency conditions. These findings highlight the overlooked but potentially critical role of herbivore-mediated apparent interaction in maintaining plant defense polymorphism.
dc.relation.haspart doi:10.5061/dryad.53k2d/1
dc.relation.isreferencedby doi:10.1086/692603
dc.subject Ecology: evolutionary
dc.subject Interactions: coexistence
dc.subject Interactions: plant/herbivore
dc.subject Polymorphism
dc.title Data from: Herbivore-mediated interaction promotes the maintenance of trichome dimorphism through negative frequency-dependent selection
dc.type Article
dwc.ScientificName Arabidopsis halleri subsp. gemmifera
dc.contributor.correspondingAuthor Sato, Yasuhiro
prism.publicationName The American Naturalist

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