Genetic Factors Associated with Heading Responses Revealed by Field Evaluation of 274 Barley Accessions for 20 Seasons

Kazuhiro Sato, Makoto Ishii, Kotaro Takahagi, Komaki Inoue, Minami Shimizu, Yukiko Uehara-Yamaguchi, Ryuei Nishii, Keiichi Mochida

Research output: Contribution to journalArticle

Abstract

Heading time is a key trait in cereals affecting the maturation period for optimal grain filling before harvest. Here, we aimed to understand the factors controlling heading time in barley (Hordeum vulgare). We characterized a set of 274 barley accessions collected worldwide by planting them for 20 seasons under different environmental conditions at the same location in Kurashiki, Japan. We examined interactions among accessions, known genetic factors, and an environmental factor to determine the factors controlling heading response. Locally adapted accessions have been selected for genetic factors that stabilize heading responses appropriate for barley cultivation, and these accessions show stable heading responses even under varying environmental conditions. We identified vernalization requirement and PPD-H1 haplotype as major stabilizing mechanisms of the heading response for regional adaptation in Kurashiki.

Original languageEnglish
Article number101146
JournaliScience
Volume23
Issue number6
DOIs
Publication statusPublished - Jun 26 2020

Keywords

  • Biological Sciences
  • Plant Biology
  • Plant Genetics

ASJC Scopus subject areas

  • General

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