Genome-Wide Analysis of the GRAS Gene Family in Barley ( Hordeum vulgare L.)

The GRAS (named after first three identified proteins within this family, GAI, RGA, and SCR) family contains plant-specific genes encoding transcriptional regulators that play a key role in gibberellin (GA) signaling, which regulates plant growth and development. Even though genes have been characte...

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Veröffentlicht in:Genes 2020-05, Vol.11 (5), p.553
Hauptverfasser: To, Vinh-Trieu, Shi, Qi, Zhang, Yueya, Shi, Jin, Shen, Chaoqun, Zhang, Dabing, Cai, Wenguo
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container_issue 5
container_start_page 553
container_title Genes
container_volume 11
creator To, Vinh-Trieu
Shi, Qi
Zhang, Yueya
Shi, Jin
Shen, Chaoqun
Zhang, Dabing
Cai, Wenguo
description The GRAS (named after first three identified proteins within this family, GAI, RGA, and SCR) family contains plant-specific genes encoding transcriptional regulators that play a key role in gibberellin (GA) signaling, which regulates plant growth and development. Even though genes have been characterized in some plant species, little research is known about the genes in barley ( L.). In this study, we observed 62 GRAS members from barley genome, which were grouped into 12 subgroups by using phylogenomic analysis together with the GRAS genes from Arabidopsis ( ), maize ( ), and rice ( . Chromosome localization and gene structure analysis suggested that duplication events and abundant presence of intronless genes might account for the massive expansion of gene family in barley. The analysis of RNA-seq data indicates the expression pattern of genes in various tissues at different stages in barley. Noteworthy, our qRT-PCR analysis showed the expression of 18 candidate genes abundantly in the developing inflorescence, indicating their potential roles in the barley inflorescence development and reproduction. Collectively, our evolutionary and expression analysis of GRAS family are useful for future functional characterization of GA signaling in barley and agricultural improvement.
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subjects Arabidopsis - genetics
Chromosome Mapping
Conserved Sequence - genetics
Evolution, Molecular
Gene Expression Regulation, Plant - genetics
Genome, Plant - genetics
Genome-Wide Association Study
Gibberellins - metabolism
Hordeum - genetics
Multigene Family - genetics
Oryza - genetics
Phylogeny
RNA-Seq
Signal Transduction - genetics
Zea mays - genetics
title Genome-Wide Analysis of the GRAS Gene Family in Barley ( Hordeum vulgare L.)
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