Brunner Amy M, Nilsson Ove
Department of Forest Science, Oregon State University, Corvallis, OR 97331-5752, USA.
Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden.
New Phytol. 2004 Oct;164(1):43-51. doi: 10.1111/j.1469-8137.2004.01165.x.
The recent release of the Populus trichocarpa genome sequence will dramatically enhance the efficiency of functional and comparative genomics research in trees. This provides researchers studying various developmental processes related to the perennial and tree life strategies with a completely new set of tools. Intimately associated with the life strategy of trees are their abilities to maintain juvenile or nonflowering phases for years to decades, and once reproductively competent, to alternate between the production of vegetative and reproductive shoots. Most of what we know about the regulation of the floral transition comes from research on Arabidopsis thaliana, a small, herbaceous, rapid-cycling, annual plant. In this review, we discuss the similarities and differences between Arabidopsis and tree flowering, and how recent findings in Arabidopsis, coupled to comparative and functional genomics in poplars, will help answer the question of how tree maturation and floral initiation is regulated.
毛果杨基因组序列的近期发布将极大提高树木功能基因组学和比较基因组学研究的效率。这为研究与多年生和树木生活策略相关的各种发育过程的研究人员提供了一整套全新的工具。与树木生活策略密切相关的是它们保持幼年或不开花阶段数年至数十年的能力，并且一旦具备生殖能力，就能在营养枝和生殖枝的产生之间交替。我们目前对开花转变调控的了解大多来自对拟南芥的研究，拟南芥是一种小型、草本、快速生长的一年生植物。在这篇综述中，我们讨论了拟南芥和树木开花之间的异同，以及拟南芥的最新研究结果，结合杨树的比较基因组学和功能基因组学，将如何有助于回答树木成熟和花芽起始是如何调控的问题。
