Evaluation of dry matter production and yield in early-sown wheat using near-isogenic lines for the vernalization locus Vrn-D1

Hiroko Sawada, Hiromi Matsuyama, Hitoshi Matsunaka, Masaya Fujita, Natsumi Okamura, Masako Seki, Hisayo Kojima, Chikako Kiribuchi-Otobe, Toshiyuki Takayama, Shunsuke Oda, Kazuhiro Nakamura, Tetsufumi Sakai, Morio Matsuzaki, Kenji Kato

Research output: Contribution to journalArticle

Abstract

Wheat (Triticum aestivum L.) grain yield is predicted to decrease in the future because of an increase in air temperature globally. To clarify the effects of the vernalization response gene in wheat to warmer winters, we compared dry matter production and grain yield between spring wheat ‘Asakazekomugi’ and its winter-type near-isogenic line (NIL) carrying different alleles of the vernalization response gene Vrn-D1 under early-, standard-, and late-sowing conditions. Under early-sowing conditions, dry matter production of the NIL carrying the winter allele of Vrn-D1, named Asa (Vrn-D1b), exceeded that of ‘Asakazekomugi’ from mid-March (after stem elongation in Asa (Vrn-D1b)) when the temperatures rose. Tiller number and leaf area index under early-sowing conditions were consistently higher in Asa (Vrn-D1b) than in ‘Asakazekomugi’ from mid-March onward. It was suggested that the early-sown ‘Asakazekomugi’ could not effectively absorb solar radiation to produce dry matter because of the acceleration of stem elongation caused by the Vrn-D1 gene during the cold season. The grain yield of Asa (Vrn-D1b) with early sowing was higher than with standard sowing. In contrast, the grain yield of ‘Asakazekomugi’ was lower in the early-sown crop than in the crop sown at the standard date. These results suggested that the higher grain yield of Asa (Vrn-D1b) than that of ‘Asakazekomugi’ under early-sown conditions could be due to Asa (Vrn-D1b) maintaining high dry matter production after the jointing stage by suppressing acceleration of growth caused by warm conditions after sowing. Abbreviations: CGR: crop growth rate; HI: harvest index; LAI: leaf area index; NIL: near-isogenic line; SNP: single-nucleotide polymorphism.

Original languageEnglish
JournalPlant Production Science
DOIs
Publication statusAccepted/In press - Jan 1 2019

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vernalization
isogenic lines
dry matter accumulation
sowing
grain yield
loci
wheat
stem elongation
leaf area index
winter
crops
alleles
cold season
genes
harvest index
spring wheat
single nucleotide polymorphism
air temperature
solar radiation
Rosa

Keywords

  • Crop physiology
  • Dry matter production
  • global warming
  • near-isogenic line
  • Vrn-D1
  • wheat
  • yield

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Evaluation of dry matter production and yield in early-sown wheat using near-isogenic lines for the vernalization locus Vrn-D1. / Sawada, Hiroko; Matsuyama, Hiromi; Matsunaka, Hitoshi; Fujita, Masaya; Okamura, Natsumi; Seki, Masako; Kojima, Hisayo; Kiribuchi-Otobe, Chikako; Takayama, Toshiyuki; Oda, Shunsuke; Nakamura, Kazuhiro; Sakai, Tetsufumi; Matsuzaki, Morio; Kato, Kenji.

In: Plant Production Science, 01.01.2019.

Research output: Contribution to journalArticle

Sawada, H, Matsuyama, H, Matsunaka, H, Fujita, M, Okamura, N, Seki, M, Kojima, H, Kiribuchi-Otobe, C, Takayama, T, Oda, S, Nakamura, K, Sakai, T, Matsuzaki, M & Kato, K 2019, 'Evaluation of dry matter production and yield in early-sown wheat using near-isogenic lines for the vernalization locus Vrn-D1', Plant Production Science. https://doi.org/10.1080/1343943X.2018.1563495
Sawada, Hiroko ; Matsuyama, Hiromi ; Matsunaka, Hitoshi ; Fujita, Masaya ; Okamura, Natsumi ; Seki, Masako ; Kojima, Hisayo ; Kiribuchi-Otobe, Chikako ; Takayama, Toshiyuki ; Oda, Shunsuke ; Nakamura, Kazuhiro ; Sakai, Tetsufumi ; Matsuzaki, Morio ; Kato, Kenji. / Evaluation of dry matter production and yield in early-sown wheat using near-isogenic lines for the vernalization locus Vrn-D1. In: Plant Production Science. 2019.
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AU - Oda, Shunsuke

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N2 - Wheat (Triticum aestivum L.) grain yield is predicted to decrease in the future because of an increase in air temperature globally. To clarify the effects of the vernalization response gene in wheat to warmer winters, we compared dry matter production and grain yield between spring wheat ‘Asakazekomugi’ and its winter-type near-isogenic line (NIL) carrying different alleles of the vernalization response gene Vrn-D1 under early-, standard-, and late-sowing conditions. Under early-sowing conditions, dry matter production of the NIL carrying the winter allele of Vrn-D1, named Asa (Vrn-D1b), exceeded that of ‘Asakazekomugi’ from mid-March (after stem elongation in Asa (Vrn-D1b)) when the temperatures rose. Tiller number and leaf area index under early-sowing conditions were consistently higher in Asa (Vrn-D1b) than in ‘Asakazekomugi’ from mid-March onward. It was suggested that the early-sown ‘Asakazekomugi’ could not effectively absorb solar radiation to produce dry matter because of the acceleration of stem elongation caused by the Vrn-D1 gene during the cold season. The grain yield of Asa (Vrn-D1b) with early sowing was higher than with standard sowing. In contrast, the grain yield of ‘Asakazekomugi’ was lower in the early-sown crop than in the crop sown at the standard date. These results suggested that the higher grain yield of Asa (Vrn-D1b) than that of ‘Asakazekomugi’ under early-sown conditions could be due to Asa (Vrn-D1b) maintaining high dry matter production after the jointing stage by suppressing acceleration of growth caused by warm conditions after sowing. Abbreviations: CGR: crop growth rate; HI: harvest index; LAI: leaf area index; NIL: near-isogenic line; SNP: single-nucleotide polymorphism.

AB - Wheat (Triticum aestivum L.) grain yield is predicted to decrease in the future because of an increase in air temperature globally. To clarify the effects of the vernalization response gene in wheat to warmer winters, we compared dry matter production and grain yield between spring wheat ‘Asakazekomugi’ and its winter-type near-isogenic line (NIL) carrying different alleles of the vernalization response gene Vrn-D1 under early-, standard-, and late-sowing conditions. Under early-sowing conditions, dry matter production of the NIL carrying the winter allele of Vrn-D1, named Asa (Vrn-D1b), exceeded that of ‘Asakazekomugi’ from mid-March (after stem elongation in Asa (Vrn-D1b)) when the temperatures rose. Tiller number and leaf area index under early-sowing conditions were consistently higher in Asa (Vrn-D1b) than in ‘Asakazekomugi’ from mid-March onward. It was suggested that the early-sown ‘Asakazekomugi’ could not effectively absorb solar radiation to produce dry matter because of the acceleration of stem elongation caused by the Vrn-D1 gene during the cold season. The grain yield of Asa (Vrn-D1b) with early sowing was higher than with standard sowing. In contrast, the grain yield of ‘Asakazekomugi’ was lower in the early-sown crop than in the crop sown at the standard date. These results suggested that the higher grain yield of Asa (Vrn-D1b) than that of ‘Asakazekomugi’ under early-sown conditions could be due to Asa (Vrn-D1b) maintaining high dry matter production after the jointing stage by suppressing acceleration of growth caused by warm conditions after sowing. Abbreviations: CGR: crop growth rate; HI: harvest index; LAI: leaf area index; NIL: near-isogenic line; SNP: single-nucleotide polymorphism.

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