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Open AccessArticle

A Genomic and Transcriptomic Overview of MATE, ABC, and MFS Transporters in Citrus sinensis Interaction with Xanthomonas citri subsp. citri

Department of Technology, School of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal 14884-900, Brazil
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Plants 2020, 9(6), 794; https://doi.org/10.3390/plants9060794
Received: 1 April 2020 / Revised: 8 June 2020 / Accepted: 18 June 2020 / Published: 25 June 2020
(This article belongs to the Section Plant Genetics and Genomics)
The multi-antimicrobial extrusion (MATE), ATP-binding cassette (ABC), and major facilitator superfamily (MFS) are the main plant transporters families, playing an essential role in the membrane-trafficking network and plant-defense mechanism. The citrus canker type A (CC), is a devastating disease caused by Xanthomonas citri subsp. citri (Xac), affecting all citrus species. In this work, we performed an in silico analysis of genes and transcripts from MATE, ABC, and MFS families to infer the role of membrane transporters in Citrus-Xac interaction. Using as reference, the available Citrus sinensis genome and the citrus reference transcriptome from CitrusKB database, 67 MATE, 91 MFS, and 143 ABC genes and 82 MATE, 139 MFS, and 226 ABC transcripts were identified and classified into subfamilies. Duplications, alternative-splicing, and potentially non-transcribed transporters’ genes were revealed. Interestingly, MATE I and ABC G subfamilies appear differently regulated during Xac infection. Furthermore, Citrus spp. showing distinct levels of CC susceptibility exhibited different sets of transporters transcripts, supporting dissimilar molecular patterns of membrane transporters in Citrus-Xac interaction. According to our findings, 4 MATE, 10 ABC, and 3 MFS are potentially related to plant-defense mechanisms. Overall, this work provides an extensive analysis of MATE, ABC, and MFS transporters’ in Citrus-Xac interaction, bringing new insights on membrane transporters in plant-pathogen interactions. View Full-Text
Keywords: citrus canker; comparative genomics; membrane transporters; differentially expressed genes; plant-pathogen interactions citrus canker; comparative genomics; membrane transporters; differentially expressed genes; plant-pathogen interactions
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Julião, M.H.M.; Silva, S.R.; Ferro, J.A.; Varani, A.M. A Genomic and Transcriptomic Overview of MATE, ABC, and MFS Transporters in Citrus sinensis Interaction with Xanthomonas citri subsp. citri. Plants 2020, 9, 794.

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