Mapping of QTLs associated with lodging resistance in rice (Oryza sativa L.) using the recombinant inbred lines derived from two high yielding cultivars, Tachisugata and Hokuriku 193

Mingjin Jiang, Eiji Yamamoto, Toshio Yamamoto, Kazuki Matsubara, Hiroshi Kato, Shunsuke Adachi, Tomohiro Nomura, Eri Kamahora, Jun Ma, Taiichiro Ookawa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Lodging is one of the major problems in rice production. In this study, we identified quantitative trait loci (QTLs) for lodging resistance traits using recombinant inbred lines (RILs) derived from a cross between two high yielding and superior lodging resistant rice cultivars, Tachisugata and Hokuriku 193. A total of 19 QTLs were detected on chromosomes (Chrs.) 2, 4, 6, 8, 9 and 10 in the F6 and F7 populations. In particular, one stable QTL for the section modulus (SM) and the outer diameter of the major axis (ODMA) was detected on Chr. 2 in both the F6 and F7 populations, and the positive allele was derived from Tachisugata. Correlation analysis showed that the SM and ODMA were positively correlated with the bending moment at breaking, the primary factor for the breaking type lodging resistance in rice. In addition, two QTLs for the spikelet number of the secondary branch and the spikelet number per panicle were also detected on Chr. 2, which overlapped with the stable QTL for the traits related to lodging resistance. These results indicated that the stable QTL might have combined effects on the traits associated with lodging resistance and grain yield. The novel QTL would be a promising target in marker-assisted selection to improve lodging resistance and grain yield in rice.

Original languageEnglish
JournalPlant Growth Regulation
DOIs
Publication statusAccepted/In press - Jan 1 2018
Externally publishedYes

Fingerprint

lodging resistance
high-yielding varieties
Quantitative Trait Loci
inbred lines
quantitative trait loci
Oryza sativa
rice
lodging
inflorescences
grain yield
Chromosomes, Human, Pair 4
Chromosomes, Human, Pair 2
Oryza
marker-assisted selection
Population
Alleles
alleles
chromosomes
cultivars

Keywords

  • Grain yield
  • Lodging resistance
  • Quantitative trait loci
  • Recombinant inbred line
  • Rice
  • Section modulus

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Plant Science

Cite this

Mapping of QTLs associated with lodging resistance in rice (Oryza sativa L.) using the recombinant inbred lines derived from two high yielding cultivars, Tachisugata and Hokuriku 193. / Jiang, Mingjin; Yamamoto, Eiji; Yamamoto, Toshio; Matsubara, Kazuki; Kato, Hiroshi; Adachi, Shunsuke; Nomura, Tomohiro; Kamahora, Eri; Ma, Jun; Ookawa, Taiichiro.

In: Plant Growth Regulation, 01.01.2018.

Research output: Contribution to journalArticle

Jiang, Mingjin ; Yamamoto, Eiji ; Yamamoto, Toshio ; Matsubara, Kazuki ; Kato, Hiroshi ; Adachi, Shunsuke ; Nomura, Tomohiro ; Kamahora, Eri ; Ma, Jun ; Ookawa, Taiichiro. / Mapping of QTLs associated with lodging resistance in rice (Oryza sativa L.) using the recombinant inbred lines derived from two high yielding cultivars, Tachisugata and Hokuriku 193. In: Plant Growth Regulation. 2018.
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abstract = "Lodging is one of the major problems in rice production. In this study, we identified quantitative trait loci (QTLs) for lodging resistance traits using recombinant inbred lines (RILs) derived from a cross between two high yielding and superior lodging resistant rice cultivars, Tachisugata and Hokuriku 193. A total of 19 QTLs were detected on chromosomes (Chrs.) 2, 4, 6, 8, 9 and 10 in the F6 and F7 populations. In particular, one stable QTL for the section modulus (SM) and the outer diameter of the major axis (ODMA) was detected on Chr. 2 in both the F6 and F7 populations, and the positive allele was derived from Tachisugata. Correlation analysis showed that the SM and ODMA were positively correlated with the bending moment at breaking, the primary factor for the breaking type lodging resistance in rice. In addition, two QTLs for the spikelet number of the secondary branch and the spikelet number per panicle were also detected on Chr. 2, which overlapped with the stable QTL for the traits related to lodging resistance. These results indicated that the stable QTL might have combined effects on the traits associated with lodging resistance and grain yield. The novel QTL would be a promising target in marker-assisted selection to improve lodging resistance and grain yield in rice.",
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AU - Matsubara, Kazuki

AU - Kato, Hiroshi

AU - Adachi, Shunsuke

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