作者
Moutasem Omary, Naama Gil-Yarom, Chen Yahav, Evyatar Steiner, Anat Hendelman, Idan Efroni
发表日期
2022
期刊
Science
卷号
375
期号
6584
页码范围
eabf4368
出版商
American Association for the Advancement of Science
简介
Plants continuously form new organs in different developmental contexts in response to environmental cues. Underground lateral roots initiate from prepatterned cells in the main root, but cells can also bypass the root-shoot trajectory separation and generate shoot-borne roots through an unknown mechanism. We mapped tomato (Solanum lycopersicum) shoot-borne root development at single-cell resolution and showed that these roots initiate from phloem-associated cells through a unique transition state. This state requires the activity of a transcription factor that we named SHOOTBORNE ROOTLESS (SBRL). Evolutionary analysis reveals that SBRL’s function and cis regulation are conserved in angiosperms and that it arose as an ancient duplication, with paralogs controlling wound-induced and lateral root initiation. We propose that the activation of a common transition state by context-specific regulators …
学术搜索中的文章
M Omary, N Gil-Yarom, C Yahav, E Steiner… - Science, 2022