Photoperiod sensitivity affects flowering duration in wheat

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Jones, Hannah E. ; Lukac, Martin ; Brak, Bastiaan ; Martinez Eixarch, Maite ; Alhomedhi, Abdulaziz ; Gooding, Mike J. ; Wingen, Lucy U. ; Griffiths, Simon (2017)

Flowering and successful pollination in wheat are key determinants of both quantity and quality of grain. Bread wheat line ‘Paragon’, introgressed with single or multiple day length insensitivity alleles was used to dissect the effects on the timing and duration of flowering within a hierarchical plant architecture. Flowering of wheat plants was observed in a series of pot-based and field experiments. Ppd-D1a was the most potent known allele affecting the timing of flowering, requiring the least thermal time to flowering across all experiments. The duration of flowering for individual lines was dominated by the shift in the start of flowering in later tillers and the number of tillers per plant, rather than variation in flowering duration of individual spikes. There was a strong relationship between flowering duration and the start of flowering with the earliest lines flowering for the longest. The greatest flowering overlap between tillers was recorded for the Ppd-1b. Across all lines, a warmer environment significantly reduced the duration of flowering and the influence of Ppd-1a alleles on the start of flowering. These findings provide evidence of pleiotropic effects of the Ppd-1a alleles, and have direct implications for breeding for increased stress resilient wheat varieties.
  • References (30)
    30 references, page 1 of 3

    BARBER, H. M., CARNEY, J., ALGHABARI, F. & GOODING, M. J. (2015). Decimal growth stages for precision wheat production in changing environments? Annals of Applied Biology 166, 355-371.

    BEALES, J., TURNER, A., GRIFFITHS, S., SNAPE, J. W. & LAURIE, D. A. (2007). A pseudo-response regulator is misexpressed in the photoperiod insensitive Ppd-D1a mutant of wheat (Triticum aestivum L.). Theoretical and Applied Genetics 115, 721-733.

    BENTLEY, A. R., TURNER, A. S., GOSMAN, N., LEIGH, F. J., MACCAFERRI, M., DREISIGACKER, S., GREENLAND, A. & LAURIE, D. A. (2011). Frequency of photoperiod-insensitive Ppd-A1a alleles in tetraploid, hexaploid and synthetic hexaploid wheat germplasm. Plant Breeding 130, 10-15.

    CHALLINOR, A. J., WHEELER, T. R., CRAUFURD, P. Q. & SLINGO, J. M. (2005). Simulation of the impact of high temperature stress on annual crop yields. Agricultural and Forest Meteorology 135, 180-189.

    DÍAZ, A., ZIKHALI, M., TURNER, A. S., ISAAC, P. & LAURIE, D. A. (2012). Copy number variation affecting the PhotoperiodB1 and Vernalization-A1 genes is associated with altered flowering time in wheat (Triticum aestivum). PLoS ONE 7, e33234. doi: 10.1371/journal.pone.0033234.

    FOULKES, M. J., SYLVESTER-BRADLEY, R., WORLAND, A. J. & SNAPE, J. W. (2004). Effects of a photoperiod-response gene Ppd-D1 on yield potential and drought resistance in UK winter wheat. Euphytica 135, 63-73.

    GONZÁLEZ, F. G., SLAFER, G. A. & MIRALLES, D. J. (2005). Floret development and survival in wheat plants exposed to contrasting photoperiod and radiation environments during stem elongation. Functional Plant Biology 32, 189-197.

    GONZÁLEZ, F. G., MIRALLES, D. J. & SLAFER, G. A. (2011). Wheat floret survival as related to pre-anthesis spike growth. Journal of Experimental Botany 62, 4889-4901.

    GREENUP, A., PEACOCK, W. J., DENNIS, E. S. & TREVASKIS, B. (2009). The molecular biology of seasonal floweringresponses in Arabidopsis and the cereals. Annals of Botany 103, 1165-1172.

    GRIFFITHS, S., SIMMONDS, J., LEVERINGTON, M., WANG, Y., FISH, L., SAYERS, L., ALIBERT, L., ORFORD, S., WINGEN, L., HERRY, L., FAURE, S., LAURIE, D., BILHAM, L. & SNAPE, J. (2009). MetaQTL analysis of the genetic control of ear emergence in elite European winter wheat germplasm. Theoretical and Applied Genetics 119, 383-395.

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