Research Project
Grant-in-Aid for Scientific Research (B)
To evaluate the pyramiding effects of strong culm genes in rice, SCM1~SCM4 on lodging resistance, NIL-SCM1, SCM2, SCM3 and SCM4 were developed. Then, we developed the pyramiding lines with double, triple and quadruple combinations derived from NIL-SCM1~NIL-SCM4. Quadruple pyramiding lines (NIL-SCM1+2+3+4) showed the largest culm diameter and the highest culm strength among the combinations, and increased spikelet number due to the pleiotropic effects of these genes. Pyramiding of strong culm genes resulted in increased culm thickness, culm strength and spikelet number due to their preiotropic effect. SCM1 mainly contributed to enhance their pyramiding effect due to the development of cortical fiber tissue in the surrounded region of culm. These results in this study suggest the importance of identifying the combinations of superior alleles of strong culm genes among natural variation and pyramiding these genes for improving high-yielding varieties.
All 2018 2017 2016 2015 Other
All Journal Article (4 results) (of which Int'l Joint Research: 2 results, Peer Reviewed: 4 results, Open Access: 4 results, Acknowledgement Compliant: 1 results) Presentation (9 results) (of which Int'l Joint Research: 3 results) Remarks (1 results)
Rice
Volume: 11 Issue: 1 Pages: 25-25
10.1186/s12284-018-0216-3
Scientific Reports
Volume: 6巻 Issue: 1 Pages: 30572-30572
10.1038/srep30572
Molecular Plant
Volume: 8 Issue: 2 Pages: 303-314
10.1016/j.molp.2014.10.009
Genetics
Volume: 201 Issue: 2 Pages: 795-808
10.1534/genetics.115.181040
120006632721
http://web.tuat.ac.jp/~crop/