globalchange  > 气候变化与战略
DOI: 10.1073/pnas.2004705117
论文题名:
A genetic framework for regulation and seasonal adaptation of shoot architecture in hybrid aspen
作者: Maurya J.P.; Miskolczi P.C.; Mishra S.; Singh R.K.; Bhalerao R.P.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:21
语种: 英语
英文关键词: Branching ; Hybrid aspen ; Perennial trees ; Seasonal growth ; Shoot architecture
Scopus关键词: antagonistic effect ; article ; axillary bud ; cell cycle ; flower development ; growth regulation ; low temperature ; nonhuman ; orthology ; photoperiodicity ; Populus ; shoot ; winter ; anatomy and histology ; gene expression regulation ; genetics ; growth, development and aging ; metabolism ; physiology ; season ; transgenic plant ; plant protein ; Gene Expression Regulation, Plant ; Photoperiod ; Plant Proteins ; Plant Shoots ; Plants, Genetically Modified ; Populus ; Seasons
英文摘要: Shoot architecture is critical for optimizing plant adaptation and productivity. In contrast with annuals, branching in perennials native to temperate and boreal regions must be coordinated with seasonal growth cycles. How branching is coordinated with seasonal growth is poorly understood. We identified key components of the genetic network that controls branching and its regulation by seasonal cues in the model tree hybrid aspen. Our results demonstrate that branching and its control by seasonal cues is mediated by mutually antagonistic action of aspen orthologs of the flowering regulators TERMINAL FLOWER 1 (TFL1) and APETALA1 (LIKE APETALA 1/LAP1). LAP1 promotes branching through local action in axillary buds. LAP1 acts in a cytokinin-dependent manner, stimulating expression of the cellcycle regulator AIL1 and suppressing BRANCHED1 expression to promote branching. Short photoperiod and low temperature, the major seasonal cues heralding winter, suppress branching by simultaneous activation of TFL1 and repression of the LAP1 pathway. Our results thus reveal the genetic network mediating control of branching and its regulation by environmental cues facilitating integration of branching with seasonal growth control in perennial trees. © 2020 National Academy of Sciences. All rights reserved.
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被引频次[WOS]:23   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164203
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作者单位: Maurya, J.P., Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, SE-901 87, Sweden, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India; Miskolczi, P.C., Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, SE-901 87, Sweden; Mishra, S., Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, SE-901 87, Sweden; Singh, R.K., Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, SE-901 87, Sweden; Bhalerao, R.P., Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, SE-901 87, Sweden

Recommended Citation:
Maurya J.P.,Miskolczi P.C.,Mishra S.,et al. A genetic framework for regulation and seasonal adaptation of shoot architecture in hybrid aspen[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(21)
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