Staff View: Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses

Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses

Elucidating the physiological mechanisms of the irregular yet concerted flowering rhythm of mass flowering tree species in the tropics requires long-term monitoring of flowering phenology, exogenous and endogenous environmental factors, as well as identifying interactions and dependencies among thes...

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Main Authors:	Yeoh, S.H., Satake, A., Numata, S., Ichie, T., Lee, S.L., Basherudin, N., Muhammad, N., Kondo, T., Otani, T., Hashim, M., Tani, N.
Format:	Article
Published:	Wiley 2017
Subjects:	Q Science (General) QH Natural history
Online Access:	http://eprints.um.edu.my/18939/ http://dx.doi.org/10.1111/mec.14257
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spelling	my.um.eprints.189392018-07-30T07:38:31Z http://eprints.um.edu.my/18939/ Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses Yeoh, S.H. Satake, A. Numata, S. Ichie, T. Lee, S.L. Basherudin, N. Muhammad, N. Kondo, T. Otani, T. Hashim, M. Tani, N. Q Science (General) QH Natural history Elucidating the physiological mechanisms of the irregular yet concerted flowering rhythm of mass flowering tree species in the tropics requires long-term monitoring of flowering phenology, exogenous and endogenous environmental factors, as well as identifying interactions and dependencies among these factors. To investigate the proximate factors for floral initiation of mast seeding trees in the tropics, we monitored the expression dynamics of two key flowering genes, meteorological conditions and endogenous resources over two flowering events of Shorea curtisii and Shorea leprosula in the Malay Peninsula. Comparisons of expression dynamics of genes studied indicated functional conservation of FLOWERING LOCUS T (FT) and LEAFY (LFY) in Shorea. The genes were highly expressed at least 1 month before anthesis for both species. A mathematical model considering the synergistic effect of cool temperature and drought on activation of the flowering gene was successful in predicting the observed gene expression patterns. Requirement of both cool temperature and drought for floral transition suggested by the model implies that flowering phenologies of these species are sensitive to climate change. Our molecular phenology approach in the tropics sheds light on the conserved role of flowering genes in plants inhabiting different climate zones and can be widely applied to dissect the flowering processes in other plant species. Wiley 2017 Article PeerReviewed Yeoh, S.H. and Satake, A. and Numata, S. and Ichie, T. and Lee, S.L. and Basherudin, N. and Muhammad, N. and Kondo, T. and Otani, T. and Hashim, M. and Tani, N. (2017) Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses. Molecular Ecology, 26 (19). pp. 5074-5085. ISSN 0962-1083 http://dx.doi.org/10.1111/mec.14257 doi:10.1111/mec.14257
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	Q Science (General) QH Natural history
spellingShingle	Q Science (General) QH Natural history Yeoh, S.H. Satake, A. Numata, S. Ichie, T. Lee, S.L. Basherudin, N. Muhammad, N. Kondo, T. Otani, T. Hashim, M. Tani, N. Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses
description	Elucidating the physiological mechanisms of the irregular yet concerted flowering rhythm of mass flowering tree species in the tropics requires long-term monitoring of flowering phenology, exogenous and endogenous environmental factors, as well as identifying interactions and dependencies among these factors. To investigate the proximate factors for floral initiation of mast seeding trees in the tropics, we monitored the expression dynamics of two key flowering genes, meteorological conditions and endogenous resources over two flowering events of Shorea curtisii and Shorea leprosula in the Malay Peninsula. Comparisons of expression dynamics of genes studied indicated functional conservation of FLOWERING LOCUS T (FT) and LEAFY (LFY) in Shorea. The genes were highly expressed at least 1 month before anthesis for both species. A mathematical model considering the synergistic effect of cool temperature and drought on activation of the flowering gene was successful in predicting the observed gene expression patterns. Requirement of both cool temperature and drought for floral transition suggested by the model implies that flowering phenologies of these species are sensitive to climate change. Our molecular phenology approach in the tropics sheds light on the conserved role of flowering genes in plants inhabiting different climate zones and can be widely applied to dissect the flowering processes in other plant species.
format	Article
author	Yeoh, S.H. Satake, A. Numata, S. Ichie, T. Lee, S.L. Basherudin, N. Muhammad, N. Kondo, T. Otani, T. Hashim, M. Tani, N.
author_facet	Yeoh, S.H. Satake, A. Numata, S. Ichie, T. Lee, S.L. Basherudin, N. Muhammad, N. Kondo, T. Otani, T. Hashim, M. Tani, N.
author_sort	Yeoh, S.H.
title	Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses
title_short	Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses
title_full	Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses
title_fullStr	Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses
title_full_unstemmed	Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses
title_sort	unravelling proximate cues of mass flowering in the tropical forests of south-east asia from gene expression analyses
publisher	Wiley
publishDate	2017
url	http://eprints.um.edu.my/18939/ http://dx.doi.org/10.1111/mec.14257
_version_	1643690838743580672
score	13.211869

Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses

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