Next generation long-culm rice with superior lodging resistance and high grain yield, Monster Rice 1

Tomohiro Nomura, Naoya Arakawa, Toshio Yamamoto, Tadamasa Ueda, Shunsuke Adachi, Jun ichi Yonemaru, Akira Abe, Hiroki Takagi, Tadashi Yokoyama, Taiichiro Ookawa

Research output: Contribution to journalArticle

Abstract

During late 1960s Green Revolution, researchers utilized semidwarf 1 (sd1) to improve the yield and lodging resistance in rice (Oryza sativa L.). However, sd1 has a negative effect to culm strength and biomass production. To increase yield dramatically in 21th century, development of next generation long-culm rice for non-lodging and high grain yield independent of sd1 has been needed. The present study developed Monster Rice 1, a long-culm and heavy-panicle type of rice line and compared it with Takanari, a high-yielding semidwarf rice variety about yield and lodging resistance associated traits. Brown rice yield and bending moment at breaking of the basal elongated internode were higher in Monster Rice 1 than those in Takanari due to a large number of spikelets per panicle and thicker culm. Furthermore, to identify QTLs with superior alleles for these traits, QTL and haplotype analyses were performed using F2 population and recombinant inbred lines derived from a cross between Monster Rice 1 and Takanari. The results from this study suggest that long-culm and heavy-panicle type of rice with a superior lodging resistance by culm strength can perform its high yield potential by using these identified QTLs contributing yield and lodging resistance.

Original languageEnglish
Article numbere0221424
JournalPloS one
Volume14
Issue number8
DOIs
Publication statusPublished - Jan 1 2019

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lodging resistance
Bending moments
Biomass
grain yield
rice
quantitative trait loci
brown rice
Oryza
internodes
inbred lines
biomass production
Oryza sativa
haplotypes
inflorescences
researchers
Haplotypes
alleles
Alleles
Research Personnel

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

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Next generation long-culm rice with superior lodging resistance and high grain yield, Monster Rice 1. / Nomura, Tomohiro; Arakawa, Naoya; Yamamoto, Toshio; Ueda, Tadamasa; Adachi, Shunsuke; Yonemaru, Jun ichi; Abe, Akira; Takagi, Hiroki; Yokoyama, Tadashi; Ookawa, Taiichiro.

In: PloS one, Vol. 14, No. 8, e0221424, 01.01.2019.

Research output: Contribution to journalArticle

Nomura, T, Arakawa, N, Yamamoto, T, Ueda, T, Adachi, S, Yonemaru, JI, Abe, A, Takagi, H, Yokoyama, T & Ookawa, T 2019, 'Next generation long-culm rice with superior lodging resistance and high grain yield, Monster Rice 1', PloS one, vol. 14, no. 8, e0221424. https://doi.org/10.1371/journal.pone.0221424
Nomura, Tomohiro ; Arakawa, Naoya ; Yamamoto, Toshio ; Ueda, Tadamasa ; Adachi, Shunsuke ; Yonemaru, Jun ichi ; Abe, Akira ; Takagi, Hiroki ; Yokoyama, Tadashi ; Ookawa, Taiichiro. / Next generation long-culm rice with superior lodging resistance and high grain yield, Monster Rice 1. In: PloS one. 2019 ; Vol. 14, No. 8.
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