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| 兰花花器官及成花基因调控研究进展 |
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史梅容1,舒文波2,邱明萱2,李林宴2,韩蕾1,孙振元1*,巨关升1,李振坚1
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| (1.中国林业科学研究院 林业研究所/国家林业局林木培育重点实验室, 北京 100091;2.华中农业大学 园艺林学学院/园艺植物生物学教育部重点实验室, 武汉 430070) |
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| 摘要: |
| 为了更有效地对开花植物中最大家族之一的兰科(Orchidaceae)植物进行开花调控，对具有蕊柱和唇瓣等独特花结构的兰花花器官调控和成花过程的分子遗传基础进行了阐述，并在此基础上对兰科花发育的调控进行了展望。结果表明:1)兰花花器官ABCDE模型中，A和E类基因决定萼片，A、B和E类基因决定花瓣，B、C和E类基因决定雄蕊，而D和E类基因决定心皮；2)温度、光周期和激素是决定兰花花起始和发育的关键；3)成花过程中的转录组、基因组以及功能基因验证的研究，取得了较大的突破。综上，本研究可为兰花花发育的分子遗传基础研究开辟新的思路。 |
| 关键词: 兰科植物 花器官 成花 基因调控 |
| DOI：10.11841/j.issn.1007-4333.2023.07.05 |
| 投稿时间：2022-08-13 |
| 基金项目:国家重点研发计划专项(2018YFD1000400)；中央高校基本科研业务费项目(2662019QD012)；华中农业大学园艺林学学院科技创新基金(SRF)(2022YLSRF16) |
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| Current progress on gene regulation in the floral organ and flower formation of orchid |
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SHI Meirong1,SHU Wenbo2,QIU Mingxuan2,LI Linyan2,HAN Lei1,SUN Zhenyuan1*,JU Guansheng1,LI Zhenjian1
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| (1.Research Institute of Forestry/Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Chinese Academy of Forestry, Beijing 100091, China;2.College of Horticulture and Forestry/Key Laboratory of Horticulture Plant Biology of Ministry of Education, Huazhong Agriculture University, Wuhan 430070, China) |
| Abstract: |
| In order to effectively regulate the flowering of Orchidaceae, one of the largest families of flowering plants, the molecular genetic basis of floral organ regulation and flowering process of orchids with unique floral structures such as stamens and labellum were elaborated. On this basis, the regulation of orchid development was prospected. The results showed that: 1)In the ABCDE model of orchid flower organs, type A and E determine sepals, type A, B and E determine petals, type B, C and E determine stamens, and type D and E determine carpels; 2)Temperature, photoperiod and hormones are the key factors to determine the initiation and development of orchids; 3)Great breakthroughs are made in the research of transcriptome, genome and functional verified genes during flowering. In conclusion, this review can open up new ideas for research on the molecular genetic basis of flower development in orchids. |
| Key words: Orchidaceae floral organ flower formation gene regulation |
