LEC1 sequentially regulates the transcription of genes involved in diverse developmental processes during seed development

著者: Julie Pelletier, Raymond W. M. Kwong, Soomin Park, Brandon H. Le, Russell Baden, Alexandro Cagliari, Meryl Hashimoto, Matthew Munoz, Robert L. Fischer, Robert B. Goldberg, John J. Harada - Proceedings of the National Academy of Sciences, PNAS 2017 被引用: 216

Significance Seed development is biphasic, consisting of the morphogenesis phase when the basic plant body plan is established and the maturation phase when the embryo accumulates storage reserves and becomes desiccation tolerant. Despite the importance of seeds as human food and animal feed, little is known about the gene-regulatory networks that operate during these phases. We identified genes that are regulated genetically and transcriptionally by a master regulator of seed development, LEAFY COTYLEDON1 (LEC1). We show that LEC1 transcriptionally regulates genes involved in photosynthesis and other developmental processes in early and maturation genes in late seed development. Our results suggest that LEC1 partners with different transcription factors to regulate distinct gene sets and that LEC1 function is conserved in Arabidopsis and soybean seed development.