Induced Variations in Brassinosteroid Genes Define Barley Height and Sturdiness, and Expand the Green Revolution Genetic Toolkit
- Dockter, C.
- Gruszka, D.
- Braumann, I.
- Druka, A.
- Druka, I.
- Franckowiak, J.
- Gough, S. P.
- Janeczko, A.
- Kurowska, M.
- Lundqvist, J.
- Lundqvist, U.
- Marzec, M.
- Matyszczak, I.
- Muller, A. H.
- Oklestkova, J.
- Schulz, B.
- Zakhrabekova, S.
- Hansson, M.
DOIAbstract
Reduced plant height and culm robustness are quantitative characteristics important for assuring cereal crop yield and quality under adverse weather conditions. A very limited number of short-culm mutant alleles were introduced into commercial crop cultivars during the Green Revolution. We identified phenotypic traits, including sturdy culm, specific for deficiencies in brassinosteroid biosynthesis and signaling in semidwarf mutants of barley (Hordeum vulgare). This set of characteristic traits was explored to perform a phenotypic screen of near-isogenic short-culm mutant lines from the brachytic, breviaristatum, dense spike, erectoides, semibrachytic, semidwarf, and slender dwarf mutant groups. In silico mapping of brassinosteroid-related ...
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