The effect of different height reducing genes on the early growth of wheat

Functional Plant Biology : FPB
M E EllisR A Richards

Abstract

Genes that reduce height without compromising seedling vigour or coleoptile length have great potential for wheat improvement. We therefore investigated the effects of various reduced height (Rht) genes on the early stages of plant development, using a combination of near isogenic, recombinant, mutant and wild type comparisons. Gibberellin (GA) insensitivity caused by Rht-B1b or Rht-D1b was associated with reduced leaf elongation rate and coleoptile length. Similar results were found for two other sources of dwarfing, Rht11 and Rht17. We found one class of Rht genes (e.g. Rht8) which had no effect on coleoptile length, leaf elongation rate or responsiveness to GA, indicating that these dwarfing genes may act later in wheat development to reduce height and increase harvest index, without affecting early growth. A third class of Rht genes was found in three durum backgrounds. These had reduced coleoptile lengths and leaf elongation rates, but had a greater response to GA than the corresponding tall varieties. We discuss these results in relation to the possible mechanisms underlying the reduction in height and the suitability of the different Rht genes for wheat improvement.

References

Jun 11, 1999·Plant Physiology·P M Chandler, M Robertson
Jun 22, 2002·Proceedings of the National Academy of Sciences of the United States of America·Wolfgang SpielmeyerPeter M Chandler
Feb 13, 2003·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·H. EllisA. Richards
Jan 1, 1990·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·M J Pinthus, M D Gale

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Citations

Apr 13, 2007·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·W SpielmeyerR A Richards
Nov 21, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Tao XuHaiyan Wang
Jun 22, 2005·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·M H EllisW Spielmeyer
Feb 13, 2007·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·G J RebetzkeR A Richards
Nov 16, 2011·Journal of the Science of Food and Agriculture·Aart M OsmanEdith T Lammerts van Bueren
Sep 1, 2015·Journal of Experimental Botany·Peter R RyanRichard A James
Nov 16, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Genqiao LiXiangyang Xu
Mar 26, 2015·Genome Génome / Conseil National De Recherches Canada·Edina TürkösiMárta Molnár-Láng
Oct 13, 2016·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Hossein RamshiniReza Amiri
Jul 18, 2018·Plants·Nathan P GrantKulvinder S Gill
Jan 9, 2020·Journal of Experimental Botany·Anthony G Condon
Sep 1, 2006·Functional Plant Biology : FPB·Yong LiuAimin Zhang
Jun 2, 2012·TheScientificWorldJournal·Linnéa AsplundJenny Hagenblad
Oct 25, 2013·Plant Biotechnology Journal·Greg J RebetzkeColin R Cavanagh
Jun 21, 2018·Frontiers in Plant Science·Ben Trevaskis
Mar 29, 2019·Journal of Experimental Botany·Zhigan ZhaoEnli Wang
May 26, 2020·Journal of Experimental Botany·Laura E DixonScott A Boden
May 28, 2020·Heredity·Jessica HylesBen Trevaskis
May 15, 2009·Journal of Experimental Botany·T WojciechowskiP J Gregory
Sep 20, 2020·Journal of Experimental Botany·Wolfram BussWolfgang Spielmeyer
Jan 26, 2021·Plant Science : an International Journal of Experimental Plant Biology·Shlomi AharonZvi Peleg
Dec 4, 2020·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Priyanka AgarwalP K Gupta

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