气候变化领域集成服务门户(CCPortal): A genetic framework for regulation and seasonal adaptation of shoot architecture in hybrid aspen

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DOI	10.1073/pnas.2004705117
	A genetic framework for regulation and seasonal adaptation of shoot architecture in hybrid aspen
	Maurya J.P.; Miskolczi P.C.; Mishra S.; Singh R.K.; Bhalerao R.P.
发表日期	2020
ISSN	0027-8424
卷号	117 期号:21
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.
英文关键词	Branching; Hybrid aspen; Perennial trees; Seasonal growth; Shoot architecture
语种	英语
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
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160950
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
推荐引用方式 GB/T 7714	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],2020,117(21).
APA	Maurya J.P.,Miskolczi P.C.,Mishra S.,Singh R.K.,&Bhalerao R.P..(2020).A genetic framework for regulation and seasonal adaptation of shoot architecture in hybrid aspen.Proceedings of the National Academy of Sciences of the United States of America,117(21).
MLA	Maurya J.P.,et al."A genetic framework for regulation and seasonal adaptation of shoot architecture in hybrid aspen".Proceedings of the National Academy of Sciences of the United States of America 117.21(2020).