Abstract
Magnesium transporters (MGTs) regulate magnesium absorption, transport, and redistribution in higher plants. To investigate the role of the Oryza sativa MGTs gene family members under salt stress, this study analyzed the protein properties, gene structure, phylogenetic relationship, synteny patterns, expression, and co-expression networks of 23 non-redundant OsMGT. The evolutionary relationship of the OsMGT gene family was fully consistent with their functional domain, and were divided into three main classes based on the conserved domain: MMgT, CorA-like, and NIPA. The α/β patterns in the protein structures were highly similar in the CorA-like and NIPA members, with the conserved structures in the Mg2+-binding and catalytic regions. The CorA-like clade-related proteins demonstrated the highest numbers of protein channels with Pro, Ser, Lys, Gly, and Tyr, as the critical binding residues. The expression analysis of OsMGT genes in various tissues showed that MGTs’ gene family may possess critical functions during rice development. Gene expression analysis of candidate OsMGT using reverse-transcription quantitative real-time PCR (RT-qPCR) found that four OsMGT genes exhibited different expression patterns in salt-sensitive and salt-tolerant rice genotypes. We hypothesize that the OsMGT gene family members may be involved in responses to salt stress. These findings could be useful for further functional investigation of MGTs as well as defining their involvement in abiotic stress studies.
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The data that support the findings of this study are available from the corresponding author upon reasonable request.
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This research was partially supported by Genetics and Agricultural Biotechnology Institute of Tabarestan (GABIT), Sari Agricultural Sciences and Natural Resources University (SANRU). The authors would like to thank the anonymous reviewers for their constructive comments and suggestions.
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NB-BJ, NB and GN designed the experiments. SM performed the experiments. SH-P and SM analyzed the data. SM and SH-P wrote the manuscript. SH-P reviewed the manuscript, and had all critical supervision. All authors have read and approved the final manuscript.
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Mohamadi, S.F., Babaeian Jelodar, N., Bagheri, N. et al. New insights into comprehensive analysis of magnesium transporter (MGT) gene family in rice (Oryza sativa L.). 3 Biotech 13, 322 (2023). https://doi.org/10.1007/s13205-023-03735-4
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DOI: https://doi.org/10.1007/s13205-023-03735-4