title: Flowering time regulation by the CONSTANS-Like gene OsCOL10.
abstract: Plant flowering at the appropriate time is critical for reproductive success and influenced by a series of environmental factors such as photoperiod and temperature. A number of genes involved in photoperiodic flowering of have been cloned and their roles in modulating expression of the flowering genes have been characterized to a certain extent. However, much less is known about the pathway in transmitting the day length response signal(s) to induce transition to reproductive growth. Recently, we characterized a constitutive flowering repressor OsCOL10 encoding for a member of the CONSTANS-like (COL) family. Through transgenic analysis, we have showed that OsCOL10 repress flowering by reducing expression of the FT-like genes RFT1 and Hd3a through Ehd1. Moreover, we also showed that OsCOL10 acts downstream of Ghd7, a key LD-specific flowering repressor by reducing expression of Ehd1. Collectively, our finding identifies OsCOL10 functioning as a flowering-time repressor that links between Ghd7 and Ehd1 in rice.
authors.affiliation: a National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing , P.R. China.
authors.forename: Junjie
authors.initials: J
authors.lastname: Tan
authors.affiliation: a National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing , P.R. China.
authors.forename: Fuqing
authors.initials: F
authors.lastname: Wu
authors.affiliation: a National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing , P.R. China.|b National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University , Nanjing , China.
authors.forename: Jianmin
authors.initials: J
authors.lastname: Wan
mesh_terms: D035264:Flowers / Q000235:genetics / Q000378:metabolism*; D018506:Gene Expression Regulation, Plant / Q000235:genetics / Q000502:physiology; D012275:Oryza / Q000235:genetics / Q000378:metabolism*; D017440:Photoperiod; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*
chemical_list: D010940:Plant Proteins
keywords: Ehd1; flowering regulation; heading date; oryza sativa; photoperiod response