Identification of Chromosomal Regions Controlling the Leaf Photosynthetic Rate in Rice by Using a Progeny from Japonica and High-Yielding Indica Varieties

Shunsuke Adachi, Naoko Nito, Motohiko Kondo, Toshio Yamamoto, Yumiko S. Arai-Sanoh, Tsuyu Ando, Taiichiro Ookawa, Masahiro Yano, Tadashi Hirasawa

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The whole-leaf photosynthetic rate in rice plants is controlled by various physiological processes. In a high-yielding indica rice variety, Habataki, the leaf photosynthetic rate (LPR) of the uppermost fully expanded leaves was approximately 130 to 140% of that in a japonica variety, Sasanishiki, from booting to the early ripening stage. We characterized the difference in the LPR between Habataki and Sasanishiki. Leaves of Habataki contained higher levels of nitrogen and, as a consequence, of Rubisco, and had higher stomatal conductance that was associated with higher hydraulic conductance from roots to leaves than those of Sasanishiki. These features were responsible for the higher LPR of Habataki. An analysis of chromosome segment substitution lines (CSSLs) in which chromosome segments from Habataki were substituted into the genetic background of Sasanishiki showed that three genetic regions on chromosomes 4, 5 and 11 were responsible for the increase in the LPR. Each of these regions was estimated to increase the LPR by 15 to 30%, and we showed that they were associated with higher activity of mesophyll photosynthesis due to higher leaf nitrogen content and greater stomatal conductance. Leaf nitrogen content and stomatal conductance may be useful parameters for further quantitative trait locus analysis of efficient photosynthesis in leaves.

Original languageEnglish
Pages (from-to)118-127
Number of pages10
JournalPlant Production Science
Volume14
Issue number2
DOIs
Publication statusPublished - Apr 29 2011
Externally publishedYes

Fingerprint

rice
leaves
stomatal conductance
nitrogen content
photosynthesis
substitution lines
cytogenetic analysis
ribulose-bisphosphate carboxylase
mesophyll
genetic background
quantitative trait loci
fluid mechanics
ripening
chromosomes
nitrogen

Keywords

  • Chromosome segment substitution line
  • Hydraulic conductance
  • Nitrogen content
  • Oryza sativa
  • Photosynthesis
  • Quantitative trait locus
  • Stomatal conductance

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Identification of Chromosomal Regions Controlling the Leaf Photosynthetic Rate in Rice by Using a Progeny from Japonica and High-Yielding Indica Varieties. / Adachi, Shunsuke; Nito, Naoko; Kondo, Motohiko; Yamamoto, Toshio; Arai-Sanoh, Yumiko S.; Ando, Tsuyu; Ookawa, Taiichiro; Yano, Masahiro; Hirasawa, Tadashi.

In: Plant Production Science, Vol. 14, No. 2, 29.04.2011, p. 118-127.

Research output: Contribution to journalArticle

Adachi, Shunsuke ; Nito, Naoko ; Kondo, Motohiko ; Yamamoto, Toshio ; Arai-Sanoh, Yumiko S. ; Ando, Tsuyu ; Ookawa, Taiichiro ; Yano, Masahiro ; Hirasawa, Tadashi. / Identification of Chromosomal Regions Controlling the Leaf Photosynthetic Rate in Rice by Using a Progeny from Japonica and High-Yielding Indica Varieties. In: Plant Production Science. 2011 ; Vol. 14, No. 2. pp. 118-127.
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