Fitness consequences of a clock pollinator filter in Nicotiana attenuata flowers in nature

Fitness consequences of a clock pollinator filter in

Nicotiana attenuata flowers in nature

Felipe Yon;Danny Kessler;Youngsung Joo;Sang-Gyu Kim;Ian T.Baldwin

【期刊名称】《植物学报（英文版）》 【年(卷),期】2017(059)011

【摘要】Nicotiana attenuata flowers,diurnally open,emit scents and move vertically to interact with nocturnal hawkmoth and day-active hummingbird pollinators.To examine the fitness consequences of these floral rhythms,we conducted pollination trials in the plant's native habitat with phase-shifted flowers of plants silenced in circadian clock genes.The results revealed that some pollination benefits observed under glasshouse conditions were not reproduced under natural field conditions.Floral arrhythmicity increased pollination success by hummingbirds,while

reducing

those

by

hawkmoths

in

the

field.Thus,floral circadian rhythms may influence a plant's fitness by filtering pollinators leading to altered seed set from outcrossed pollen. 【总页数】5页(805-809) 【关键词】

【作者】Felipe Yon;Danny Kessler;Youngsung Joo;Sang-Gyu Kim;Ian T.Baldwin

【作者单位】Department of Molecular Ecology, Max Planck Institute for Chemical

Ecology,

Hans-Kn(o)ll-Stra(B)e

8,D-07745

Jena,