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Gene Review

LEC1  -  nuclear transcription factor Y subunit B-9

Arabidopsis thaliana

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High impact information on LEC1


Biological context of LEC1

  • LEAFY COTYLEDON1 (LEC1) is a central regulator that is required for many aspects of Arabidopsis embryogenesis and sufficient to induce embryo development in vegetative cells when expressed ectopically [5].
  • We propose that the role of LEC1 in embryonic cell fate control requires auxin and sucrose to promote cell division and embryonic differentiation [6].
  • The predicted amino acid sequence of C-LEC1 is similar to that of LEC1 and contains regions that are conserved in the heme-activated protein 3 (HAP3) subunit of plants, animals and microorganisms [7].
  • Changes in gene expression in the leafy cotyledon1 (lec1) and fusca3 (fus3) mutants of Arabidopsis thaliana L [8].
  • The phenotypes associated with the foliage-leaf-specific mutations were also found to be induced ectopically in cotyledons in the presence of the lec1 mutation [9].

Associations of LEC1 with chemical compounds


Other interactions of LEC1


Analytical, diagnostic and therapeutic context of LEC1


  1. Arabidopsis LEAFY COTYLEDON1 is sufficient to induce embryo development in vegetative cells. Lotan, T., Ohto, M., Yee, K.M., West, M.A., Lo, R., Kwong, R.W., Yamagishi, K., Fischer, R.L., Goldberg, R.B., Harada, J.J. Cell (1998) [Pubmed]
  2. A network of local and redundant gene regulation governs Arabidopsis seed maturation. To, A., Valon, C., Savino, G., Guilleminot, J., Devic, M., Giraudat, J., Parcy, F. Plant Cell (2006) [Pubmed]
  3. LEAFY COTYLEDON1-LIKE defines a class of regulators essential for embryo development. Kwong, R.W., Bui, A.Q., Lee, H., Kwong, L.W., Fischer, R.L., Goldberg, R.B., Harada, J.J. Plant Cell (2003) [Pubmed]
  4. PICKLE is a CHD3 chromatin-remodeling factor that regulates the transition from embryonic to vegetative development in Arabidopsis. Ogas, J., Kaufmann, S., Henderson, J., Somerville, C. Proc. Natl. Acad. Sci. U.S.A. (1999) [Pubmed]
  5. Arabidopsis LEAFY COTYLEDON1 represents a functionally specialized subunit of the CCAAT binding transcription factor. Lee, H., Fischer, R.L., Goldberg, R.B., Harada, J.J. Proc. Natl. Acad. Sci. U.S.A. (2003) [Pubmed]
  6. The turnip Mutant of Arabidopsis Reveals That LEAFY COTYLEDON1 Expression Mediates the Effects of Auxin and Sugars to Promote Embryonic Cell Identity. Casson, S.A., Lindsey, K. Plant Physiol. (2006) [Pubmed]
  7. Isolation of the gene encoding Carrot leafy cotyledon1 and expression analysis during somatic and zygotic embryogenesis. Yazawa, K., Takahata, K., Kamada, H. Plant Physiol. Biochem. (2004) [Pubmed]
  8. Changes in gene expression in the leafy cotyledon1 (lec1) and fusca3 (fus3) mutants of Arabidopsis thaliana L. Vicient, C.M., Bies-Etheve, N., Delseny, M. J. Exp. Bot. (2000) [Pubmed]
  9. Heteroblasty in Arabidopsis thaliana (L.) Heynh. Tsukaya, H., Shoda, K., Kim, G.T., Uchimiya, H. Planta (2000) [Pubmed]
  10. LEAFY COTYLEDON1 controls seed storage protein genes through its regulation of FUSCA3 and ABSCISIC ACID INSENSITIVE3. Kagaya, Y., Toyoshima, R., Okuda, R., Usui, H., Yamamoto, A., Hattori, T. Plant Cell Physiol. (2005) [Pubmed]
  11. Leafy cotyledon genes are essential for induction of somatic embryogenesis of Arabidopsis. Gaj, M.D., Zhang, S., Harada, J.J., Lemaux, P.G. Planta (2005) [Pubmed]
  12. Regulatory networks in seeds integrating developmental, abscisic acid, sugar, and light signaling. Brocard-Gifford, I.M., Lynch, T.J., Finkelstein, R.R. Plant Physiol. (2003) [Pubmed]
  13. Similarity of expression patterns of knotted1 and ZmLEC1 during somatic and zygotic embryogenesis in maize ( Zea mays L.). Zhang, S., Wong, L., Meng, L., Lemaux, P.G. Planta (2002) [Pubmed]
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