Genome-wide transcript analysis of inflorescence development in wheat

Dae Yeon Kim, Min Jeong Hong, Yong Weon Seo

Research output: Contribution to journalArticle

Abstract

The process of inflorescence development is directly related to yield components that determine the final grain yield in most cereal crops. Here, microarray analysis was conducted for four different developmental stages of inflorescence to identify genes expressed specifically during inflorescence development. To select inflorescence-specific expressed genes, we conducted meta-Analysis using 1245 Affymetrix GeneChip array sets obtained from various development stages, organs, and tissues of members of Poaceae. The early stage of inflorescence development was accompanied by a significant upregulation of a large number of cell differentiation genes, such as those associated with the cell cycle, cell division, DNA repair, and DNA synthesis. Moreover, key regulatory genes, including the MADS-box gene, KNOTTED-1-like homeobox genes, GROWTH-REGULATING FACTOR 1 gene, and the histone methyltransferase gene, were highly expressed in the early inflorescence development stage. In contrast, fewer genes were expressed in the later stage of inflorescence development, and played roles in hormone biosynthesis and meiosis-Associated genes. Our work provides novel information regarding the gene regulatory network of cell division, key genes involved in the differentiation of inflorescence in wheat, and regulation mechanism of inflorescence development that are crucial stages for determining final grain number per spike and the yield potential of wheat.

Original languageEnglish
Pages (from-to)623-633
Number of pages11
JournalGenome
Volume62
Issue number9
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Inflorescence
Triticum
Genome
Genes
Cell Division
Homeobox Genes
Gene Regulatory Networks
Meiosis
Regulator Genes
Microarray Analysis
Poaceae
DNA Repair
Action Potentials
Meta-Analysis
Cell Differentiation
Cell Cycle
Up-Regulation
Hormones

Keywords

  • Inflorescence development
  • Transcriptome
  • Wheat

ASJC Scopus subject areas

  • Biotechnology
  • Molecular Biology
  • Genetics

Cite this

Genome-wide transcript analysis of inflorescence development in wheat. / Kim, Dae Yeon; Hong, Min Jeong; Seo, Yong Weon.

In: Genome, Vol. 62, No. 9, 01.01.2019, p. 623-633.

Research output: Contribution to journalArticle

Kim, Dae Yeon ; Hong, Min Jeong ; Seo, Yong Weon. / Genome-wide transcript analysis of inflorescence development in wheat. In: Genome. 2019 ; Vol. 62, No. 9. pp. 623-633.
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