Development and genetics in the evolution of land plant body plans.

Development and genetics in the evolution of land plant body plans.
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DOI:
10.1098/rstb.2015.0490
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发表时间:
2017-02-05
期刊:
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子:
--
通讯作者:
Jill Harrison C
Jill Harrison C
中科院分区:
其他
文献类型:
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作者:
Jill Harrison C

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植物对陆地的殖民化塑造了陆地生物圈、地圈和全球气候。200多年来,形态和分子创新驱动陆地植物进化的本质一直是一个谜。最近的系统发育和古植物学的进展共同表明,陆地植物从淡水藻类进化而来,并指出植物进化中的关键形态创新。在植物生活史的单倍体配子体阶段,这些包括顶端生长和多个生长轴的多细胞形式的创新。在生活史的二倍体阶段,多细胞轴向孢子体是一个早期的创新引发随后的不确定的分支形式与叶和根的多样化。在新出现的模型系统中,反向和正向遗传方法开始确定这种创新的遗传基础。这些数据将植物进化发育研究置于发现驱动陆地植物体计划辐射的发育和遗传变化的尖端。这篇文章是“基因组学时代的进化发育和形态多样性的起源”主题问题的一部分。
The colonization of land by plants shaped the terrestrial biosphere, the geosphere and global climates. The nature of morphological and molecular innovation driving land plant evolution has been an enigma for over 200 years. Recent phylogenetic and palaeobotanical advances jointly demonstrate that land plants evolved from freshwater algae and pinpoint key morphological innovations in plant evolution. In the haploid gametophyte phase of the plant life cycle, these include the innovation of mulitcellular forms with apical growth and multiple growth axes. In the diploid phase of the life cycle, multicellular axial sporophytes were an early innovation priming subsequent diversification of indeterminate branched forms with leaves and roots. Reverse and forward genetic approaches in newly emerging model systems are starting to identify the genetic basis of such innovations. The data place plant evo-devo research at the cusp of discovering the developmental and genetic changes driving the radiation of land plant body plans. This article is part of the themed issue ‘Evo-devo in the genomics era, and the origins of morphological diversity’.
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