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Media type:
E-Article
Title:
Developmental pathways for shaping spike inflorescence architecture in barley and wheat
Contributor:
Koppolu, Ravi;
Schnurbusch, Thorsten
Published:
Wiley, 2019
Published in:
Journal of Integrative Plant Biology, 61 (2019) 3, Seite 278-295
Language:
English
DOI:
10.1111/jipb.12771
ISSN:
1672-9072;
1744-7909
Origination:
Footnote:
Description:
AbstractGrass species display a wide array of inflorescences ranging from highly branched compound/panicle inflorescences to unbranched spike inflorescences. The unbranched spike is a characteristic feature of the species of tribe Triticeae, including economically important crops, such as wheat and barley. In this review, we describe two important developmental genetic mechanisms regulating spike inflorescence architecture in barley and wheat. These include genetic regulation of (i) row‐type pathway specific to Hordeum species and (ii) unbranched spike development in barley and wheat. For a comparative understanding, we describe the branched inflorescence phenotypes of rice and maize along with unbranched Triticeae inflorescences. In the end, we propose a simplified model describing a probable mechanism leading to unbranched spike formation in Triticeae species.