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当前位置: 首页 > 文章 > 小麦花器官形成的A,B,C,D,E功能基因研究进展 分子植物育种 2016,14 (6) 1447-1454
Position: Home > Articles > Research Progress on A, B, C, D, E Function Genes for Floral Organ Formation in Wheat Molecular Plant Breeding 2016,14 (6) 1447-1454

小麦花器官形成的A,B,C,D,E功能基因研究进展

作  者：
魏淑红;廖明莉
单  位：
西南野生动植物资源保护教育部重点实验室西华师范大学生命科学学院
关键词：
小麦;花发育;花器官;ABCDE模型
摘  要：
小麦是人类重要的粮食作物之一,花器官是粮食产生的基础。小麦花器官发育研究对小麦育种有着潜在的应用前景。目前,已鉴定克隆了部分小麦花器官A,B,C,D,E 5类功能基因,加深了人们对小麦花器官发育机制的认识。A功能基因主要有WFUL1,2,3/WAP1/VRN1/TaVRT1/TaAP1-1,2,3,与小麦由营养生长向生殖生长转变以及内外稃和浆片的发育有关。B功能基因有WAP3/TaAP3/TaMADS 51、TaMADS 82、WPI1/TaPI-1、WPI2/TaPI-2/TaAGL26,决定浆片和雄蕊的发育。C功能基因参与雄蕊和雌蕊的发育,包括WAG-1/TaAG-1、WAG-2/TaAG-2/WM29A/WM29B/TaAGL39。D功能基因在胚珠发育中起重要作用,主要有TaAG-3/TaAGL2/TaAGL9/TaAGL31、TaAG-4和WSTK。E功能基因在各轮花器官中均有一定作用,主要有WSEP、WLHS1、TaMADS1、TaSEP-1,2,3,4,5,6,以及TaAGL37/TaAGL6-1A,TaMADS#12/TaAGL6-1B和TaAGL6-1C。相比于双子叶植物,小麦花器官发育仍有许多问题尚需阐明。本文综述了小麦花器官形成的A,B,C,D,E功能基因研究现状,总结小麦花器官形成的ABCDE模型,并提出目前研究存在的问题,为深入研究小麦花器官发育提供一定的理论依据。
译  名：
Research Progress on A, B, C, D, E Function Genes for Floral Organ Formation in Wheat
作  者：
Wei Shuhong;Liao Mingli;Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), College of life Science, China West Normal University;
关键词：
Wheat;;Flower development;;Floral organ;;ABCDE model
摘  要：
Wheat is one of the most important food crops in the world. The wheat floral organs provide the basis for grain formation. Study of wheat floral organ development has a potential application prospect for seed plant breeding. At present, some A, B, C, D, E function genes concerning floral organ development in wheat have been cloned, which makes researchers further realize the development mechanism of wheat floral organ. The class A genes are WFUL1,2,3/WAP1/VRN1/TaVRT1/TaAP1-1,2,3, which are associated with the transition from vegetative to reproductive growth and development of lemma and lodicule. The class B genes are WAP3/TaAP3/TaMADS 51, TaMADS 82, WPI1/TaPI-1and WPI2/TaPI-2/TaAGL26, which play a central role in development of lodicule and stamen. WAG-1/TaAG-1 and WAG-2/TaAG-2/WM29A/WM29B/TaAGL39 are members of the class C genes and act in pistil and stamen formation. D-class genes TaAG-3/TaAGL2/TaAGL9/TaAGL31, TaAG-4 and WSTK promote ovule identity. Some class E genes(WSEP, WLHS1, TaMADS1, TaSEP-1,2,3,4,5,6, TaMADS#12/TaAGL6-1B, TaAGL37/TaAGL6-1A and TaAGL6-1C) have been found, which show partially redundant functions in identity determination of lemma, lodicule, stamens and carpels. However, compared to the dicots, the regulation and mechanism of specific genes involved in flower development of wheat are still unknown and need to further be elucidated. In the present review, the roles of A, B, C, D, E class genes in wheat are summarized. The current understanding of ABCDE model in wheat is described, and the problems existing in current research are presented, which would play important roles in further research of floral organ formation in wheat.

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