文献类型：期刊文献

英文题名：Two FT orthologs from Populus simonii Carriere induce early flowering in Arabidopsis and poplar trees

作者：Shen, Lili[1] Chen, Ying[1] Su, Xiaohua[2] Zhang, Shougong[2] Pan, Huixin[1] Huang, Minren[1]

第一作者：Shen, Lili

通信作者：Huang, MR[1]

机构：[1]Nanjing Forestry Univ, Jiangsu Key Lab Poplar Germplasm Enhancement & Va, Key Lab Genet & Biotechnol, Minist Educ, Nanjing 210037, Jiangsu, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China

年份：2012

卷号：108

期号：3

起止页码：371-379

外文期刊名：PLANT CELL TISSUE AND ORGAN CULTURE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000301601600002)】；

基金：This work was supported by the National Department Public Benefit Research Foundation of China (201204319 and 201004004) and National Basic Research Program of China (2009CB19100).

语种：英文

外文关键词：FT orthologs; Populus simonii; PsFT1; PsFT2; Flower initiation

摘要：Genes in the FLOWERING LOCUS T (FT) family have been shown to be important in the control of the switch between vegetative and reproductive growth in several plant species. In this study, two FT orthologs were isolated from Populus simonii, a species indigenous to China and planted in North China as a shelterbelt. The orthologs were named PsFT1 and PsFT2. Phylogenetic analysis revealed that the two genes belonged to the FT gene family. PsFT1 and PsFT2 control flowering initiation in response to day-length when ectopically expressed in transgenic Arabidopsis and transgenic juvenile poplar clone T89 plants. Moreover, when poplar T89 was transformed with PsFT1 or PsFT2, flowering was induced within 40 days. Subsequently, floral meristems emerged on the flanks of the axillary inflorescence shoots. These findings suggest that PsFT1 and PsFT2 are involved in the control of the timing of flowering in Populus simonii.