Genome-wide identification, phylogeny and expression profiling of class III peroxidases gene family in Brachypodium distachyon
| Autor: | Qin Ding, Fang Xin, Lingjian Ma, Yucui Han, Yue Liu, Shuwei Wei, Jiao Xie, Ting Zhu |
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| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Plant Roots Genome Evolution Molecular Transcriptome 03 medical and health sciences 0302 clinical medicine Gene Expression Regulation Plant Phylogenetics Genetics Gene family Gene Regulatory Networks Tissue Distribution Gene Phylogeny Plant Proteins biology Abiotic stress Gene Expression Profiling Chromosome Mapping Molecular Sequence Annotation General Medicine biology.organism_classification Gene expression profiling 030104 developmental biology Peroxidases Multigene Family 030220 oncology & carcinogenesis Brachypodium distachyon Brachypodium |
| Zdroj: | Gene. 700:149-162 |
| ISSN: | 0378-1119 |
| Popis: | Class III peroxidases are classical secretory plant peroxidases belonging to a large multi-gene family. Class III peroxidases are involved in various physical processes and the response to biotic and abiotic stress to protect plants from environmental adversities. In this study, 151 BdPrx genes were identified using HMM and Blastp program. According to their physical location, the 151 BdPrx genes were mapped on five chromosomes. The results of Gene Structure Display Serve and MEME revealed that BdPrxs in the same subgroup shared similar gene structure, and their protein sequences were highly conserved. Based on the analysis of evolutionary relationships and Ka/Ks, 151 BdPrx genes were divided into 15 subgroups, they have undergone purifying selection. In addition, the result of GO annotation showed that 100% of the BdPrxs participated in antioxidant. The protein-protein interaction network was constructed using the orthology-based method, found that 66 BdPrxs were involved in the regulatory network and 183 network branches were identified. Furthermore, analysis of the transcriptome data indicated that the BdPrx genes responded to low concentration of exogenous phytohormones and exhibited different levels of expression in the different tissues. Subsequently, 19 genes were selected for quantitative real-time PCR and found to be mainly expressed in the roots, might preferentially respond to hydrogen peroxide and gibberellin. Our results provide a foundation for further evolutionary and functional study of Prx genes in B. distachyon. |
| Databáze: | OpenAIRE |
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