Flowering Locus C[1] (FLC) is a MADS-box gene that in late-flowering ecotypes of the plant Arabidopsis thaliana is responsible for vernalization. In a new seedling FLC is expressed, which prevents flowering. Upon exposure to cold, less FLC is expressed (to a degree depending on the amount of cold), and flowering becomes possible.[2]FLC is extensively regulated through epigenetic modifications and transcriptional control.
The expression of FLC is affected by other genes including FLK,[3]FCA[4] and VERNALIZATION2 (VRN2).[4]
Wild Arabidopsis plants have different alleles for the FLC gene, which correspond to ecotypes which either (a) flower rapidly and produce a number of generations during one summer (summer-annual), or (b) flower only after vernalization (winter-annual or late-flowering). This kind of variation can also be provided by variation in the FRIGIDA (FRI) gene.[5]
Referencesedit
^Michaels SD, Amasino RM (1999), "FLOWERING LOCUS C encodes a novel MADS domain protein that acts as a repressor of flowering", Plant Cell, 11 (5): 949–56, doi:10.1105/tpc.11.5.949, PMC144226, PMID 10330478.
^Sheldon, Cc; Rouse, Dt; Finnegan, Ej; Peacock, Wj; Dennis, Es (Mar 2000), "The molecular basis of vernalization: the central role of FLOWERING LOCUS C (FLC).", Proceedings of the National Academy of Sciences of the United States of America, 97 (7): 3753–8, doi:10.1073/pnas.060023597, PMC16312, PMID 10716723
^Lim, Mh; Kim, J; Kim, Ys; Chung, Ks; Seo, Yh; Lee, I; Kim, J; Hong, Cb; Kim, Hj; Park, Cm (Mar 2004), "A new Arabidopsis gene, FLK, encodes an RNA binding protein with K homology motifs and regulates flowering time via FLOWERING LOCUS C.", The Plant Cell, 16 (3): 731–40, doi:10.1105/tpc.019331, PMC385284, PMID 14973162
^ abSheldon, C. C.; Conn, AB; Dennis, ES; Peacock, WJ (2002), "Different Regulatory Regions Are Required for the Vernalization-Induced Repression of FLOWERING LOCUS C and for the Epigenetic Maintenance of Repression", The Plant Cell Online, 14 (10): 2527–37, doi:10.1105/tpc.004564, PMC151233, PMID 12368502
^Michaels, Sd; He, Y; Scortecci, Kc; Amasino, Rm (Aug 2003), "Attenuation of FLOWERING LOCUS C activity as a mechanism for the evolution of summer-annual flowering behavior in Arabidopsis", Proceedings of the National Academy of Sciences of the United States of America, 100 (17): 10102–7, Bibcode:2003PNAS..10010102M, doi:10.1073/pnas.1531467100, PMC187779, PMID 12904584
This plant physiology article is a stub. You can help Wikipedia by expanding it.
flowering, locus, mads, gene, that, late, flowering, ecotypes, plant, arabidopsis, thaliana, responsible, vernalization, seedling, expressed, which, prevents, flowering, upon, exposure, cold, less, expressed, degree, depending, amount, cold, flowering, becomes. Flowering Locus C 1 FLC is a MADS box gene that in late flowering ecotypes of the plant Arabidopsis thaliana is responsible for vernalization In a new seedling FLC is expressed which prevents flowering Upon exposure to cold less FLC is expressed to a degree depending on the amount of cold and flowering becomes possible 2 FLC is extensively regulated through epigenetic modifications and transcriptional control The expression of FLC is affected by other genes including FLK 3 FCA 4 and VERNALIZATION2 VRN2 4 Wild Arabidopsis plants have different alleles for the FLC gene which correspond to ecotypes which either a flower rapidly and produce a number of generations during one summer summer annual or b flower only after vernalization winter annual or late flowering This kind of variation can also be provided by variation in the FRIGIDA FRI gene 5 References edit Michaels SD Amasino RM 1999 FLOWERING LOCUS C encodes a novel MADS domain protein that acts as a repressor of flowering Plant Cell 11 5 949 56 doi 10 1105 tpc 11 5 949 PMC 144226 PMID 10330478 Sheldon Cc Rouse Dt Finnegan Ej Peacock Wj Dennis Es Mar 2000 The molecular basis of vernalization the central role of FLOWERING LOCUS C FLC Proceedings of the National Academy of Sciences of the United States of America 97 7 3753 8 doi 10 1073 pnas 060023597 PMC 16312 PMID 10716723 Lim Mh Kim J Kim Ys Chung Ks Seo Yh Lee I Kim J Hong Cb Kim Hj Park Cm Mar 2004 A new Arabidopsis gene FLK encodes an RNA binding protein with K homology motifs and regulates flowering time via FLOWERING LOCUS C The Plant Cell 16 3 731 40 doi 10 1105 tpc 019331 PMC 385284 PMID 14973162 a b Sheldon C C Conn AB Dennis ES Peacock WJ 2002 Different Regulatory Regions Are Required for the Vernalization Induced Repression of FLOWERING LOCUS C and for the Epigenetic Maintenance of Repression The Plant Cell Online 14 10 2527 37 doi 10 1105 tpc 004564 PMC 151233 PMID 12368502 Michaels Sd He Y Scortecci Kc Amasino Rm Aug 2003 Attenuation of FLOWERING LOCUS C activity as a mechanism for the evolution of summer annual flowering behavior in Arabidopsis Proceedings of the National Academy of Sciences of the United States of America 100 17 10102 7 Bibcode 2003PNAS 10010102M doi 10 1073 pnas 1531467100 PMC 187779 PMID 12904584 nbsp This plant physiology article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Flowering Locus C amp oldid 1171368153, wikipedia, wiki, book, books, library,
