Engineering the lodging resistance mechanism of post-Green Revolution rice to meet future demands

Traditional breeding for high-yielding rice has been dependent on the widespread cultivation of gibberellin (GA)-deficient semi-dwarf varieties. Dwarfism lowers the “center of gravity” of the plant body, which increases resistance against lodging and enables plants to support high grain yield. Altho...

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Vydáno v:Proceedings of the Japan Academy, Series B Ročník 93; číslo 4; s. 220 - 233
Hlavní autoři: HIRANO, Ko, ORDONIO, Reynante Lacsamana, MATSUOKA, Makoto
Médium: Journal Article
Jazyk:angličtina
Vydáno: Japan The Japan Academy 2017
Témata:
Animals
Breeding - methods
Crop science
culm
Cultivars
Genetic Engineering - methods
gibberellin
Gibberellins - metabolism
Humans
lodging resistance
Oryza - genetics
Oryza - growth & development
Oryza - metabolism
Phenotype
Plant resistance
pyramiding
quantitative trait loci
Quantitative Trait Loci - genetics
Review
Rice
Selective breeding
ISSN:0386-2208, 1349-2896, 1349-2896
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Shrnutí:Traditional breeding for high-yielding rice has been dependent on the widespread cultivation of gibberellin (GA)-deficient semi-dwarf varieties. Dwarfism lowers the “center of gravity” of the plant body, which increases resistance against lodging and enables plants to support high grain yield. Although this approach was successful in latter half of the 20th century in rice and wheat breeding, this may no longer be enough to sustain rice with even higher yields. This is because relying solely on the semi-dwarf trait is subject to certain limitations, making it necessary to use other important traits to reinforce it. In this review, we present an alternative approach to increase lodging resistance by improving the quality of the culm by identifying genes related to culm quality and introducing these genes into high-yielding rice cultivars through molecular breeding technique.
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Communicated by Yasuyuki YAMADA, M.J.A.
ISSN:0386-2208
1349-2896
1349-2896
DOI:10.2183/pjab.93.014