Alanine aminotransferase controls seed dormancy in barley

Kazuhiro Sato, Miki Yamane, Nami Yamaji, Hiroyuki Kanamori, Akemi Tagiri, Julian G. Schwerdt, Geoffrey B. Fincher, Takashi Matsumoto, Kazuyoshi Takeda, Takao Komatsuda

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Dormancy allows wild barley grains to survive dry summers in the Near East. After domestication, barley was selected for shorter dormancy periods. Here we isolate the major seed dormancy gene qsd1 from wild barley, which encodes an alanine aminotransferase (AlaAT). The seed dormancy gene is expressed specifically in the embryo. The AlaAT isoenzymes encoded by the long and short dormancy alleles differ in a single amino acid residue. The reduced dormancy allele Qsd1 evolved from barleys that were first domesticated in the southern Levant and had the long dormancy qsd1 allele that can be traced back to wild barleys. The reduced dormancy mutation likely contributed to the enhanced performance of barley in industrial applications such as beer and whisky production, which involve controlled germination. In contrast, the long dormancy allele might be used to control pre-harvest sprouting in higher rainfall areas to enhance global adaptation of barley.

Original languageEnglish
Article number11625
JournalNature Communications
Volume7
DOIs
Publication statusPublished - May 18 2016

Fingerprint

Plant Dormancy
barley
alanine
Hordeum
Alanine Transaminase
Seed
seeds
Genes
Beer
Isoenzymes
Industrial applications
Rain
Alleles
Amino Acids
genes
germination
Middle East
embryos
mutations
Germination

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Chemistry(all)
  • Physics and Astronomy(all)

Cite this

Sato, K., Yamane, M., Yamaji, N., Kanamori, H., Tagiri, A., Schwerdt, J. G., ... Komatsuda, T. (2016). Alanine aminotransferase controls seed dormancy in barley. Nature Communications, 7, [11625]. https://doi.org/10.1038/ncomms11625

Alanine aminotransferase controls seed dormancy in barley. / Sato, Kazuhiro; Yamane, Miki; Yamaji, Nami; Kanamori, Hiroyuki; Tagiri, Akemi; Schwerdt, Julian G.; Fincher, Geoffrey B.; Matsumoto, Takashi; Takeda, Kazuyoshi; Komatsuda, Takao.

In: Nature Communications, Vol. 7, 11625, 18.05.2016.

Research output: Contribution to journalArticle

Sato, K, Yamane, M, Yamaji, N, Kanamori, H, Tagiri, A, Schwerdt, JG, Fincher, GB, Matsumoto, T, Takeda, K & Komatsuda, T 2016, 'Alanine aminotransferase controls seed dormancy in barley', Nature Communications, vol. 7, 11625. https://doi.org/10.1038/ncomms11625
Sato K, Yamane M, Yamaji N, Kanamori H, Tagiri A, Schwerdt JG et al. Alanine aminotransferase controls seed dormancy in barley. Nature Communications. 2016 May 18;7. 11625. https://doi.org/10.1038/ncomms11625
Sato, Kazuhiro ; Yamane, Miki ; Yamaji, Nami ; Kanamori, Hiroyuki ; Tagiri, Akemi ; Schwerdt, Julian G. ; Fincher, Geoffrey B. ; Matsumoto, Takashi ; Takeda, Kazuyoshi ; Komatsuda, Takao. / Alanine aminotransferase controls seed dormancy in barley. In: Nature Communications. 2016 ; Vol. 7.
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