文献类型：期刊文献

英文题名：Over-Expression of Larch DAL1 Accelerates Life-Cycle Progression in Arabidopsis

作者：Ye, Zha-Long[1] Zang, Qiao-Lu[1] Cheng, Dong-Xia[1] Li, Xiang-Yi[1] Qi, Li-Wang[1] Li, Wan-Feng[1]

第一作者：Ye, Zha-Long

机构：[1] State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China

年份：2022

卷号：13

期号：6

外文期刊名：Forests

收录：EI(收录号：20222612286560);Scopus(收录号：2-s2.0-85132833528)

语种：英文

外文关键词：Life cycle - Plants (botany) - Seed

摘要：Homologs of Larix kaempferi DEFICIENS-AGAMOUS-LIKE 1 (LaDAL1) promote flowering in Arabidopsis. However, their functional role in the whole life-cycle is limited. Here, we analyzed the phenotypes and transcriptomes of Arabidopsis plants over-expressing LaDAL1. With respect to the defined life-cycle stage of Arabidopsis based on the meristem state, the results showed that LaDAL1 promoted seed germination, bolting, flower initiation, and global proliferative arrest, indicating that LaDAL1 accelerates the meristem reactivation, the transitions of vegetative meristem to inflorescence and flower meristem, and meristem arrest. As a marker gene of meristem, TERMINAL FLOWER 1 was down-regulated after LaDAL1 over-expression. These results reveal that LaDAL1 accelerates the life-cycle progression in Arabidopsis by promoting the transition of meristem fate, providing more and novel functional information about the conifer age-related gene DAL1. ? 2022 by the authors. Licensee MDPI, Basel, Switzerland.