Fitness consequences of altering floral circadian oscillations for Nicotiana attenuata

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Title
Fitness consequences of altering floral circadian oscillations for Nicotiana attenuata
Author(s)
Felipe Yon; Danny Kessler; Youngsung Joo; Lucas Cortes Llorca; Sang Gyu Kim; Ian T. Baldwin
Publication Date
2017-03
Journal
Journal of Integrative Plant Biology, v.59, no.3, pp.180 - 189
Publisher
WILEY
Abstract
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 andmove vertically through a 140° arc to interact with nocturnal hawkmoths. We tethered flowers to evaluate the importance of flower positions for Manduca sexta-mediated pollinations; flower position dramatically influenced pollination. We examined the pollination success of phase-shifted flowers, silenced in circadian clock genes, NaZTL, NaLHY, and NaTOC1, by RNAi. Circadian rhythms in N. attenuata flowers are responsible for altered seed set from outcrossed pollen. © 2016 Institute of Botany, Chinese Academy of Sciences
URI
https://pr.ibs.re.kr/handle/8788114/4138
ISSN
1672-9072
Appears in Collections:
Center for Genome Engineering(유전체 교정 연구단) > Journal Papers (저널논문)
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