Auxin: a molecular trigger of seed development

First author: Duarte D. Figueiredo; Affiliations: Swedish University of Agricultural Sciences (瑞典农业科学大学): Uppsala, Sweden

Corresponding author: Claudia Köhler

The evolution of seeds defines a remarkable landmark in the history of land plants. A developing seed contains three genetically distinct structures: the embryo, the nourishing tissue, and the seed coat. While fertilization is necessary to initiate seed development in most plant species, apomicts (无融合生殖) have evolved mechanisms allowing seed formation independently of fertilization. Despite their socio-economical relevance, the molecular mechanisms driving seed development have only recently begun to be understood. Here we review the current knowledge on the role of the hormone auxin for the initial development of the three seed structures and as a trigger of fertilization-independent seed development.

植物种子的演化是陆地植物演化历史的重要一环。发育中的种子包含三个遗传上不同的结构：胚胎、营养组织及种皮。大多数的植物通常由授精来起始种子发育，而有些植物也演化出了无融合生殖的方法使得种子能够独立于授精作用起始发育。除了无融合生殖的社会-经济相关性，近年来有关驱动种子发育的潜在分子调控机制逐渐被解析。本文中，作者综述了目前对于生长素诱导种子三个结构起始发育、诱发独立于授精的种子发育的研究进展。

通讯：Claudia Köhler  (http://kohlerlab.se/people/claudia-kohler/)

个人简介：1999年，德国佛雷堡大学，植物细胞生物学博士；1999-2000年，德国佛雷堡大学，细胞生物学博士后；2000-2003年，苏黎世大学，植物发育遗传学博士后。

研究方向：种子发育和植物物种形成的遗传、表观机制。

doi: 10.1101/gad.312546.118

Journal: Gene & Development

Published date: 01 April, 2018