The Maize Floral Transition

  • Joseph Colasanti
  • Michael Muszynski


The floral transition is a critical developmental change in a plant's life cycle that is marked by the switch from vegetative to reproductive growth. The transition is induced by leaf-derived signals that translocate through the phloem to the shoot apex where the shoot apical meristem is reprogrammed to adopt a floral fate. In maize, this occurs when the vegetative shoot meristem ceases leaf initiation and becomes consumed in the production of the tassel inflorescence primordium. Upper axillary shoot meristems are converted into ear inflorescence primordia soon after this period. This review highlights current understanding of the genes and molecular mechanisms regulating the floral transition in maize. We relate flowering control in maize to its progenitor teosinte, provide an overview of the quantitative nature of flowering in maize germplasm and describe what is currently known about the molecular components of the maize floral transition genetic network.


Quantitative Trait Locus Flowering Time Shoot Apex Shoot Apical Meristem Floral Transition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We thank Mei Guo, Olga Danilevskaya and Evgueni Ananiev for meristem images and Olga Danilevskaya and Carl Simmons for sharing data prior to publication.


  1. Abe, M., Kobayashi, Y., Yamamoto, S., Daimon, Y., Yamaguchi, A., Ikeda, Y., Ichinoki, H., Notaguchi, M., Goto, K., and Araki, T. (2005). FD, a bZIP protein mediating signals from the floral pathway integrator FT at the shoot apex . Science 309, 1052–1056.CrossRefPubMedGoogle Scholar
  2. Andrews, C.J., Dwyer, L.M., Stewart, D.W., Dugas, J.A., and Bonn, P. (2000) . Distribution of carbohydrate during grain-fill in leafy and normal maize hybrids . Can J Plant Sci 80, 87–95.Google Scholar
  3. Aukerman, M.J., and Sakai, H. (2003). Regulation of flowering time and floral organ identity by a microRNA and its APETALA2-like target genes . Plant Cell 15, 2730–2741.CrossRefPubMedGoogle Scholar
  4. Austin, D.F., Lee, M., and Veldboom, L.R. (2001). Genetic mapping in maize with hybrid progeny across testers and generations: Plant height and flowering . TAG Theor Appl Genet 102, 163–176.CrossRefGoogle Scholar
  5. Beadle, G.W. (1939). Teosinte and the origin of maize. J Hered 30, 245–247.Google Scholar
  6. Bernier, G., and Perilleux, C. (2005). A physiological overview of the genetics of flowering time control. Plant Biotechnol J 3, 3–16.CrossRefPubMedGoogle Scholar
  7. Bomblies, K., and Doebley, J.F. (2006). Pleiotropic effects of the duplicate maize FLORICAULA/ LEAFY genes zfl1 and zfl2 on traits under selection during maize domestication . Genetics 172, 519–531.CrossRefPubMedGoogle Scholar
  8. Camus-Kulandaivelu, L., Veyrieras, J.-B., Madur, D., Combes, V., Fourmann, M., Barraud, S., Dubreuil, P., Gouesnard, B., Manicacci, D., and Charcosset, A. (2006). Maize adaptation to temperate climate: Relationship between population structure and polymorphism in the Dwarf8 gene. Genetics 172, 2449–2463.CrossRefPubMedGoogle Scholar
  9. Chardon, F., Virlon, B., Moreau, L., Falque, M., Joets, J., Decousset, L., Murigneux, A., and Charcosset, A. (2004). Genetic architecture of flowering time in maize as inferred from quantitative trait loci meta-analysis and synteny conservation with the rice genome . Genetics 168, 2169–2185.CrossRefPubMedGoogle Scholar
  10. Chardon, F., Hourcade, D., Combes, V., and Charcosset, A. (2005). Mapping of a spontaneous mutation for early flowering time in maize highlights contrasting allelic series at two-linked QTL on chromosome 8 . Theor Appl Genet 112, 1–11.CrossRefPubMedGoogle Scholar
  11. Colasanti, J., Yuan, Z., and Sundaresan, V. (1998). The indeterminate gene encodes a zinc finger protein and regulates a leaf-generated signal required for the transition to flowering in maize . Cell 93, 593–603.CrossRefPubMedGoogle Scholar
  12. Colasanti, J., Tremblay, R., Wong, A.Y.M., Coneva, V., Kozaki, A., and Mable, B.K. (2006). The maize INDETERMINATE1 flowering time regulator defines a highly conserved zinc finger protein family in higher plants . BMC Genomics 7, 1–15.CrossRefGoogle Scholar
  13. Coneva, V. , Zhu, T., and Colasanti, J. (2007). Expression differences between normal and indeter-minate1 maize suggest downstream targets of ID1, a floral transition regulator in maize. Journal of Experimental Botany, 58, 3679–3693.CrossRefPubMedGoogle Scholar
  14. Corbesier, L., Lejeune, P., and Bernier, G. (1998). The role of carbohydrates in the induction of flowering in Arabidopsis thaliana: Comparison between the wild type and a starchless mutant . Planta (Berlin) 206, 131–137.CrossRefGoogle Scholar
  15. Corbesier, L., Vincent, C., Jang, S., Fornara, F., Fan, Q., Searle, I., Giakountis, A., Farrona, S., Gissot, L., Turnbull, C., and Coupland, G. (2007) . FT protein movement contributes to longdistance signaling in floral induction of Arabidopsis. Science 316, 1030–1033.CrossRefPubMedGoogle Scholar
  16. Costa, C., Dwyer, L.M., Stewart, D.W., and Smith, D.L. (2002). Nitrogen effects on grain yield and yield components of leafy and nonleafy maize genotypes . Crop Sci 42, 1556–1563.CrossRefGoogle Scholar
  17. Danilevskaya, O.N., Meng, X., Hou, Z., Ananiev, E.V., Simmons, C.R. (2008). A Genomic and Expression Compendium of the Expanded PEBP Gene Family from Maize. Plant Physiol. 146, 250–264.CrossRefPubMedGoogle Scholar
  18. Danilevskaya, O.N., Meng, X., Selinger, D.A., Deschamps, S., Hermon, P. et al. (2008). Involvement of the MADS-Box Gene ZMM4 in Floral Induction and Inflorescence Development in Maize. Plant Physiol. 147, 2054–2069.CrossRefPubMedGoogle Scholar
  19. Dijak, M., Modarres, A.M., Hamilton, R.I., Dwyer, L.M., Stewart, D.W., Mather, D.E., and Smith, D.L. (1999). Leafy reduced-stature maize hybrids for short-season environments. Crop Sci 39 1106–1110.CrossRefGoogle Scholar
  20. Doebley, J. (2004). The genetics of maize evolution. Annu Rev Genet 38, 37–59.CrossRefPubMedGoogle Scholar
  21. Emerson, R.A. (1924). Control of flowering in teosinte. J Hered 15, 41–48.Google Scholar
  22. Galinat, W.C., and Naylor, A.W. (1951). Relation of photoperiod to inflorescence proliferation in Zea mays L . Am J Bot 38, 38–47.CrossRefGoogle Scholar
  23. Garner, W.W., and Allard, H.A. (1920). Effect of the relative effect of day and night and other factors of the environment on growth and reproduction in plants . J Agric Res 18, 553–606.Google Scholar
  24. Irish, E., and Jegla, D. (1997). Regulation of extent of vegetative development of the maize shoot meristem. Plant J 11, 63–71.CrossRefGoogle Scholar
  25. Irish, E.E., and Nelson, T.M. (1991). Identification of multiple stages in the conversion of maize meristems from vegetative to floral development . Dev 112, 891–898.Google Scholar
  26. Kozaki, A., Hake, S., and Colasanti, J. (2004). The maize ID1 flowering time regulator is a zinc finger protein with novel DNA binding properties . Nucleic Acids Res 32, 1710–1720.CrossRefPubMedGoogle Scholar
  27. Lin, M.-K., Belanger, H., Lee, Y.-J., Varkonyi-Gasic, E., Taoka, K.-I., Miura, E., Xoconostle-Cazares, B., Gendler, K., Jorgensen, R.A., Phinney, B., Lough, T.J., and Lucas, W.J. (2007). FLOWERING LOCUS T protein may act as the long-distance florigenic signal in the cucurbits. Plant Cell 19, 1488–1506.CrossRefPubMedGoogle Scholar
  28. Malcomber, S.T., Preston, J.C., Reinheimer, R., Kossuth, J., and Kellogg, E.A. (2006). Developmental gene evolution and the origin of grass inflorescence diversity . Adv Bot Res 44 426–481.CrossRefGoogle Scholar
  29. Muszynski, M.G., Dam, T., Li, B., Shirbroun, D.M., Hou, Z., Bruggemann, E., Archibald, R., Ananiev, E.V., and Danilevskaya, O.N. (2006). Delayed flowering1 encodes a basic Leucine Zipper protein that mediates floral inductive signals at the shoot apex in maize . Plant Physiol 142, 1523–1536.CrossRefPubMedGoogle Scholar
  30. Neuffer, M.G., Coe, E.H., and Wessler, S.R. (1997). Mutants of Maize. Cold Spring Harbor, NY: Cold Spring Harbor Laboratory Press .Google Scholar
  31. Ohto, M., Onai, K., Furukawa, Y., Aoki, E., Araki, T., and Nakamura, K. (2001). Effects of sugar on vegetative development and floral transition in Arabidopsis . Plant Physiol 127, 252–261.CrossRefPubMedGoogle Scholar
  32. Poethig, R.S. (1990). Phase-change and the regulation of shoot morphogenesis in plants. Science 250, 923–930.CrossRefPubMedGoogle Scholar
  33. Salvi, S., Tuberosa, R., Chiapparino, E., Maccaferri, M., Veillet, S., van Beuningen, L., Isaac, P., Edwards, K., and Phillips, R.L. (2002). Toward positional cloning of Vgt1, a QTL controlling the transition from the vegetative to the reproductive phase in maize . Plant Mol Biol 48, 601–613.CrossRefPubMedGoogle Scholar
  34. Salvi, S., Sponza, G., Morgante, M., Tomes, D., Niu, X., Fengler, K.A., Meeley, R., Ananiev, E.V., Svitashev, S., Bruggemann, E., Li, B., Hainey, C.F., Radovic, S., Zaina, G., Rafalski, J.A., Tingey, S.V., Miao, G.-H., Phillips, R.L., and Tuberosa, R. (2007). Conserved noncoding genomic sequences associated with a flowering-time quantitative trait locus in maize . PNAS 104, 11376–11381.CrossRefPubMedGoogle Scholar
  35. Shaver, D.L. (1983). Genetics and breeding of maize with extra leaves above the ear. In Proceedings of the 38th Annual Corn and Sorghum Industry Research Conference (Chicago, IL: American Seed Trade Association, Washington, DC), pp. 161–180.Google Scholar
  36. Sheehan, M.J., Kennedy, L.M., Costich, D.E., and Brutnell, T.P. (2007). Subfunctionalization of PhyB1 and PhyB2 in the control of seedling and mature plant traits in maize . Plant J 49 338–353.CrossRefPubMedGoogle Scholar
  37. Singleton, W.R. (1946). Inheritance of indeterminate growth in maize. J Hered 37, 61–64.PubMedGoogle Scholar
  38. Subedi, K.D., and Ma, B.L. (2005a). Ear position, leaf area, and contribution of individual leaves to grain yield in conventional and leafy maize hybrids . Crop Sci 45, 2246–2257.CrossRefGoogle Scholar
  39. Subedi, K.D., and Ma, B.L. (2005b). Nitrogen uptake and partitioning in stay-green and leafy maize hybrids. Crop Sci 45, 740–747.CrossRefGoogle Scholar
  40. Subedi, K.D., Ma, B.L., and Smith, D.L. (2006). Response of a leafy and non-leafy maize hybrid to population densities and fertilizer nitrogen levels . Crop Sci 46, 1860–1869.CrossRefGoogle Scholar
  41. Tamaki, S., Matsuo, S., Wong, H.L., Yokoi, S., and Shimamoto, K. (2007). Hd3a protein is a mobile flowering signal in rice. Science 316, 1033–1036.CrossRefPubMedGoogle Scholar
  42. Thornsberry, J.M., Goodman, M.M., Doebley, J., Kresovich, S., Nielsen, D., and Buckler, E.S. (2001). Dwarf8 polymorphisms associate with variation in flowering time . Nat Genet 28, 286–289.CrossRefPubMedGoogle Scholar
  43. Tollenaar, M., and Hunter, R.B. (1983). A photoperiod and temperature sensitive period for leaf number of maize . Crop Sci 23, 457–460.CrossRefGoogle Scholar
  44. Veldboom, L.R., Lee, M., and Woodman, W.L. (1994). Molecular marker-facilitated studies in an elite maize population: I . Linkage analysis and determination of QTL for morphological traits. TAG Theor Appl Genet 88, 7–16.Google Scholar
  45. Vladutu, C., McLaughlin, J., and Phillips, R.L. (1999). Fine mapping and characterization of linked quantitative trait loci involved in the transition of the maize apical meristem from vegetative to generative structures . Genetics 153, 993–1007.PubMedGoogle Scholar
  46. Wigge, P.A., Kim, M.C., Jaeger, K.E., Busch, W., Schmid, M., Lohmann, J.U., and Weigel, D. (2005) . Integration of spatial and temporal information during floral induction in Arabidopsis . Science 309, 1056–1059.CrossRefPubMedGoogle Scholar
  47. Wong, A.Y.M., and Colasanti, J. (2007). Maize floral regulator protein INDETERMINATE1 is localized to developing leaves and is not altered by light or the sink/source transition . J Exp Bot 58, 403–414.CrossRefPubMedGoogle Scholar
  48. Zhang, Y.-M., Mao, Y., Xie, C., Smith, H., Luo, L., and Xu, S. (2005). Mapping quantitative trait loci using naturally occurring genetic variance among commercial inbred lines of maize (Zea mays L.). Genetics 169, 2267–2275.CrossRefPubMedGoogle Scholar

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© Springer Science + Business Media, LLC 2009

Authors and Affiliations

  • Joseph Colasanti
  • Michael Muszynski

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