The floral transition has been well studied at the molecular level and in addition to discovery of newer components of molecular clocks, there has been elucidation of specified modules of transcriptional activators that directly activate or repress flowering . Our knowledge about photoperiodic flowering mechanisms in Arabidopsis has greatly facilitated our understanding of these mechanisms in major crops for example although rice is classified as a short-day plant, it possesses the Ghd7-Ehd1-Hd3a/RFT1 pathway, which enables flowering responses under various day-length conditions. Investigation of whether this pathway is conserved in other plants, or whether it is unique in rice, is of great interest. What can be the approaches in this regard or for proceeding in other similar fields of study
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