Genome‐wide identification, evolution, and expression analysis of RNA‐binding glycine‐rich protein family in maize. Issue 10 (13th July 2014)

• Record Type: Journal Article
• Authors: Zhang, Jianhua; Zhao, Yanxin; Xiao, Hailin; Zheng, Yonglian; Yue, Bing
• Is Part Of: Journal of integrative plant biology. Volume 56:Issue 10(2014)
• Page Start: 1020
• Page End: 1031
• Publication Date: 2014-07-13
• Subjects: Plants -- Periodicals; Plants -- China -- Periodicals; Electronic journals; 580.5
• DOI: 10.1111/jipb.12210
• Languages: English
• ISSNs: 1672-9072

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <sec id="jipb12210-sec-0001" sec-type="section"> <p>The RNA‐binding glycine‐rich protein (RB‐GRP) family is characterized by the presence of a glycine‐rich domain arranged in (Gly)n‐X repeats and an RNA‐recognition motif (RRM). <italic>RB‐GRPs</italic> participate in varied physiological and biochemical processes especially in the stress response of plants. In this study, a total of 23 <italic>RB‐GRPs</italic> distributed on 10 chromosomes were identified in maize (<italic>Zea mays</italic> L.), and they were divided into four subgroups according to their conserved domain architecture. Five pairs of paralogs were identified, while none of them was located on the same chromosomal region, suggesting that segmental duplication is predominant in the duplication events of the <italic>RB‐GRPs</italic> in maize. Comparative analysis of <italic>RB‐GRPs</italic> in maize, <italic>Arabidopsis</italic> (<italic>Arabidopsis thaliana</italic> L.), rice (<italic>Oryza sativa</italic> L.), and wheat (<italic>Triticum aestivum</italic>) revealed that two exclusive subgroups were only identified in maize. Expression of eight <italic>ZmRB‐GRPs</italic> was significantly regulated by at least two kinds of stresses. In addition, <italic>cis</italic>‐elements predicted in the promoter regions of the <italic>ZmRB‐GRPs</italic> also indicated that these <italic>ZmRB‐GRPs</italic> would be involved in stress response of maize. The preliminary genome‐wide analysis of the <italic>RB</italic>‐<italic>GRPs</italic> in maize would provide useful information for further study on the function of the <italic>ZmRB‐GRPs</italic>.</p> </sec> </abstract>