Reports from Bayer CropScience Highlight Recent Findings in Experimental Botany (Differential coupling of gibberellin responses by Rht-B1c suppressor alleles and Rht-B1b in wheat highlights a unique role for the DELLA N-terminus in dormancy)
By a News Reporter-Staff News Editor at Genomics & Genetics Weekly -- Fresh data on Life Science Research - Experimental Botany are presented in a new report. According to news reporting originating in Ghent, Belgium, by NewsRx journalists, research stated, "During the Green Revolution, substantial increases in wheat (Triticum aestivum) yields were realized, at least in part, through the introduction of the Reduced height (Rht)-B1b and Rht-D1b semi-dwarfing alleles. In contrast to Rht-B1b and Rht-D1b, the Rht-B1c allele is characterized by extreme dwarfism and exceptionally strong dormancy."
The news reporters obtained a quote from the research from Bayer CropScience, "Recently, 35 intragenic Rht-B1c suppressor alleles were created in the spring wheat cultivar Maring?, and termed overgrowth (ovg) alleles. Here, 14 ovg alleles with agronomically relevant plant heights were reproducibly classified into nine tall and five semi-dwarf alleles. These alleles differentially affected grain dormancy, internode elongation rate, and coleoptile and leaf lengths. The stability of these ovg effects was demonstrated for three ovg alleles in different genetic backgrounds and environments. Importantly, two semi-dwarf ovg alleles increased dormancy, which correlated with improved pre-harvest sprouting (PHS) resistance. Since no negative effects on grain yield or quality were observed, these semi-dwarf ovg alleles are valuable for breeding to achieve adequate height reduction and protection of grain quality in regions prone to PHS."
According to the news reporters, the research concluded: "Furthermore, this research highlights a unique role for the first 70 amino acids of the DELLA protein, encoded by the Rht-1 genes, in grain dormancy."
For more information on this research see: Differential coupling of gibberellin responses by Rht-B1c suppressor alleles and Rht-B1b in wheat highlights a unique role for the DELLA N-terminus in dormancy. Journal of Experimental Botany, 2017;68(3):443-455. (Oxford University Press - www.oup.com/; Journal of Experimental Botany - jxb.oxfordjournals.org)
Our news correspondents report that additional information may be obtained by contacting K. Van De Velde, R&D Innovation Center, Bayer CropScience, Ghent, Belgium. Additional authors for this research include P.M. Chandler, D. Van Der Straeten and A. Rohde (see also Life Science Research - Experimental Botany).
Keywords for this news article include: Ghent, Europe, Belgium, Genetics, Experimental Botany, Life Science Research.
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