Catalase (<i>CAT</i>) Gene Family in Wheat (<i>Triticum aestivum</i> L.): Evolution, Expression Pattern and Function Analysis
Catalases (<i>CATs</i>) are present in almost all living organisms and play important roles in plant development and response to various stresses. However, there is relatively little information on <i>CAT</i> genes in wheat and related <i>Triticeae</i> species. A...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-01-01
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| Series: | International Journal of Molecular Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1422-0067/23/1/542 |
| Summary: | Catalases (<i>CATs</i>) are present in almost all living organisms and play important roles in plant development and response to various stresses. However, there is relatively little information on <i>CAT</i> genes in wheat and related <i>Triticeae</i> species. A few studies on <i>CAT</i> family genes in wheat have been reported. In this study, ten <i>CAT</i> proteins (<i>TaCATs</i>) were identified in wheat and classified into three groups based on their phylogenetic features and sequence analysis. The analysis of the structure and motif composition of the <i>TaCAT</i> proteins suggested that a segmental duplication event occurred in the <i>TaCAT</i> gene family. Collinearity relationship analysis among different species showed that there were three orthologous <i>CAT</i> genes in rice and in maize. By analyzing the <i>cis</i>-elements in the promoter regions, we speculated that <i>TaCAT</i> genes expression might be regulated by light, oxygen deficit, methyl jasmonate and abscisic acid, and by transcription factors such as MYB. A Gene Ontology (GO)-based analysis showed that <i>TaCAT</i> proteins may be related to the response to various stresses, are cytoplasm localized, and may function as antioxidant enzymes. RT-qPCR and transcriptome data analyses exhibited distinct expression patterns of <i>TaCAT</i> genes in different tissues and in response to various treatments. In this study, a comprehensive analysis of wheat <i>CAT</i> genes was performed, enriching our knowledge of <i>CAT</i> genes and providing a foundation for further functional analyses of this gene family in wheat. |
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| ISSN: | 1661-6596 1422-0067 |