Genome-wide Identification and Expression Profile Analysis of the Gene Family in Barley ( L.)

Overview

Journal PeerJ

Specialties Biology
Environmental Health
General Medicine

Date 2019 May 22

PMID 31110921

Citations 16

Authors

Jie Li

Xinhao Liu

Affiliations

Soon will be listed here.

Abstract

In plants, heat shock proteins (Hsps) play important roles in response to diverse stresses. Hsp20 is the major family of Hsps, but their role remains poorly understood in barley ( L.). To reveal the mechanisms of barley Hsp20s () response to stress conditions, we performed a comprehensive genome-wide analysis of the gene family using bioinformatics-based methods. In total, 38 putative were identified in barley and grouped into four subfamilies (C, CP, PX, and MT) based on predicted subcellular localization and their phylogenetic relationships. A sequence analysis indicated that most genes have no intron or one with a relatively short length. In addition, the same group of HvHsp20 proteins in the phylogenetic tree shared similar gene structure and motifs, indicating that they were highly conserved and might have similar function. Based on RNA-seq data analysis, we showed that the transcript levels of genes could be induced largely by abiotic and biotic stresses such as heat, salt, and powdery mildew. Three genes, , , and , were up-regulated under biotic and abiotic stresses, suggesting their potential roles in mediating the response of barley plants to environment stresses. These results provide valuable information for further understanding the complex mechanisms of gene family in barley.

Citing Articles

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