Fitness consequences of altering floral circadian oscillations for Nicotiana attenuata

作     者：Felipe Yon Danny Kessler Youngsung Joo Lucas Cortes Llorca Sang-Gyu Kim Ian T. Baldwin 

作者机构：Department of Molecular Ecology Max Planck Institute for Chemical Ecology Hans-Knoll-Straβe 8 D-07745 Jena Germany Center for Genome Engineering Institute for Basic Science Yuseong-gu 34047 Daeieon South Korea 

出 版 物：《Journal of Integrative Plant Biology》 (植物学报（英文版）)

年 卷 期：2017年第59卷第3期

页      面：180-189页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 0901[农学-作物学] 0703[理学-化学] 0902[农学-园艺学] 0713[理学-生态学] 

基　　金：supported by European Research Council advanced grant Clockwork Green (No. 293926) to I.T.B the Global Research Lab program (2012055546) from the National Research Foundation of Korea Institute for Basic Science (IBS-R021-D1) the Max Planck Society 

主　　题：Yonggen Lou Zhejiang University China 

摘      要：Ecological interactions between flowers and pollinators are all about timing. Flower opening/closing and scent emissions are largely synchronized with pollinator activity, and a circadian clock regulates these rhythms. However, whether the circadian clock increases a plant＇s reproductive success by regulating these floral rhythms remains untested. Flowers of Nicotiana attenuata, a wild tobacco, diurnally and rhythmically open, emit scent and move vertically through a 140° arc to interact with nocturnal hawkmoths. We tethered flowers to evaluate the importanceof flower positions for Manduca flower position dramatically sexta-mediated pollinations; nfluenced pollination. We examined the pollination success of phase-shifted flowers, silenced in circadian clock genes, NaZTL, NaLHY, and NaTOCI, by RNAi. Circadian rhythms in N. attenuata flowers are responsible for altered seed set from outcrossed pollen.