您好，欢迎访问广西农业科学院 机构知识库！

Evolutionary, interaction and expression analysis of floral meristem identity genes in inflorescence induction of the second crop in two-crop-a-year grape culture system

文献类型： 外文期刊

作者： Guo, Rongrong 2 ; Wang, Bo 3 ; Lin, Ling 4 ; Cheng, Guo 4 ; Zhou, Sihong 2 ; Xie, Shuyu 4 ; Shi, Xiaofang 4 ; Cao, Muming 4 ;

作者机构： 1.Guangxi Acad Agr Sci, Nanning 530007, Peoples R China

2.Guangxi Crop Genet Improvement & Biotechnol Lab, Nanning 530007, Peoples R China

3.Guangxi Univ, Agr Coll, Nanning 530004, Peoples R China

4.Guangxi Acad Agr Sci, Grape & Wine Res Inst, Nanning 530007, Peoples R China

关键词： grapevine; inflorescence induction; floral meristem identity; evolution; expression profiles; chlormequat chloride treatment

期刊名称：JOURNAL OF GENETICS （ 影响因子：1.166； 五年影响因子：1.212 ）

ISSN： 0022-1333

年卷期： 2018 年 97 卷 2 期

页码：

收录情况： SCI

摘要： The fruitfulness of grapevines (Vitis vinifera L.) is determined to a large extent by the differentiation of uncommitted meristems, especially in the second-crop production of some varieties, where the intermediate of inflorescence and tendril accounts for a significant proportion in two-crop-a-year grape culture system. The differentiation of uncommitted lateral meristem was reported to be regulated by a network, whose backbone was composed of several floral meristem identity genes. In the present study, the phylogenetics of grape floral meristem identity genes with their orthologues in other species, and their conserved domain and interaction networks were analysed. In addition, the effects of chlormequat chloride and pinching treatments on the expression profiles of floral meristem identity genes and content of gibberellic acid (GAs) and zeatin riboside (ZR), as well as the ratio of ZR/GAs in buds that were used to produce the second crop, and the ratio of inflorescence induction of the second crop were studied in 'Summer Black'. The present results showed that floral meristem identity genes of grape and their orthologues in one or more among Malus domastic, Citrus sinensis, Theobroma cacao, Nicotiana tabacum, Solanum lycopersicum and Glycine hirsutum, probably originated from a common ancestor. Interaction networks of six grape-floral meristem identity genes indicated that the inflorescence induction and floral development were regulated by one more complex network, and expression profiles of genes that involved in this network could be affected by each other. Expression profiles of eight floral meristem identity genes were affected by chlormequat chloride and pinching treatments, and higher expression levels of FT, TFL1A and TFL1B, as well as lower expression levels of LFY from 3 days before full bloom to 11 days after full bloom were thought to play important roles in promoting the formation of inflorescence primordial of the second crop, and higher expression levels of CAL A, SOC/ and TFL1A at 18 days after full bloom (DAF) could promote the development of inflorescence primordial. In addition, lower ratio of ZR/GAs at 3 days before full bloom and 4 days after full bloom could promote the formation of uncommitted lateral meristems in chlormequat chloride and pinching-treated plants, and higher ratio at 11 days after full bloom was the main reason for the formation of more inflorescences after chlormequat chloride treatment.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：广西农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台