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A roadmap to embryo identity in plants

机译:植物胚胎特性的路线图

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Although plant embryogenesis is usually studied in the context of seed development, there are many alternative roads to embryo initiation. These include somatic embryogenesis in tissue culture and microspore embryogenesis, both widely used in breeding and crop propagation, but also include other modes of ectopic embryo initiation. In the past decades several genes, mostly transcription factors, were identified that can induce embryogenesis in somatic cells. Because the genetic networks in which such regulators operate to promote embryogenesis are largely unknown, a key question is how their activity relates to zygotic and alternative embryo initiation. We describe here the many roads to plant embryo initiation and discuss a framework for defining the developmental roles and mechanisms of plant embryogenesis regulators.
机译:尽管通常在种子发育的背景下研究植物胚胎发生,但仍有许多替代途径可以启动胚胎。这些包括组织培养中的体细胞胚发生和小孢子胚发生,不仅广泛用于育种和农作物繁殖,还包括异位胚启动的其他方式。在过去的几十年中,已鉴定出几种基因,主要是转录因子,可以诱导体细胞的胚胎发生。由于在很大程度上不知道这种调节子在其中起作用来促进胚胎发生的遗传网络,所以一个关键的问题是它们的活性与合子和替代性胚胎萌发如何相关。我们在这里描述了植物胚胎萌发的许多途径,并讨论了定义植物胚发生调节剂的发展作用和机制的框架。

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