Over-Expression of Larch DAL1 Accelerates Life-Cycle Progression in Arabidopsis
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
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Academic Editors: Giovanni Emiliani and Alessio Giovannelli
Forests 2022, 13(6), 953; https://doi.org/10.3390/f13060953
Received: 16 May 2022
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Revised: 11 June 2022
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Accepted: 13 June 2022
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Published: 17 June 2022
(This article belongs to the Special Issue Tree Genetics: Molecular and Functional Characterization of Genes)
Homologs of Larix kaempferiDEFICIENS-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.
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Keywords:
AGL6; gymnosperm; life-cycle; lifetime; MADS-box; reproductive development
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MDPI and ACS Style
Ye, Z.-L.; Zang, Q.-L.; Cheng, D.-X.; Li, X.-Y.; Qi, L.-W.; Li, W.-F. Over-Expression of Larch DAL1 Accelerates Life-Cycle Progression in Arabidopsis. Forests 2022, 13, 953. https://doi.org/10.3390/f13060953
AMA Style
Ye Z-L, Zang Q-L, Cheng D-X, Li X-Y, Qi L-W, Li W-F. Over-Expression of Larch DAL1 Accelerates Life-Cycle Progression in Arabidopsis. Forests. 2022; 13(6):953. https://doi.org/10.3390/f13060953
Chicago/Turabian StyleYe, Zha-Long, Qiao-Lu Zang, Dong-Xia Cheng, Xiang-Yi Li, Li-Wang Qi, and Wan-Feng Li. 2022. "Over-Expression of Larch DAL1 Accelerates Life-Cycle Progression in Arabidopsis" Forests 13, no. 6: 953. https://doi.org/10.3390/f13060953
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