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Genome-Wide Identification of the Rose ISWEET/I Gene Family and Their Different Expression Profiles in Cold Response between Two Rose Species
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Genome-Wide Identification of the Rose ISWEET/I Gene Family and Their Different Expression Profiles in Cold Response between Two Rose Species
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Genome-Wide Identification of the Rose ISWEET/I Gene Family and Their Different Expression Profiles in Cold Response between Two Rose Species
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Journal Article
Genome-Wide Identification of the Rose ISWEET/I Gene Family and Their Different Expression Profiles in Cold Response between Two Rose Species
2023
Overview
Sugars Will Eventually be Exported Transporter (SWEET) gene family plays indispensable roles in plant physiological activities, development processes, and responses to biotic and abiotic stresses, but no information is known for roses. In this study, a total of 25 RcSWEET genes were identified in Rosa chinensis ‘Old Blush’ by genome-wide analysis and clustered into four subgroups based on their phylogenetic relationships. The genomic features, including gene structures, conserved motifs, and gene duplication among the chromosomes of RcSWEET genes, were characterized. Seventeen types of cis-acting elements among the RcSWEET genes were predicted to exhibit their potential regulatory roles during biotic and abiotic stress and hormone responses. Tissue-specific and cold-response expression profiles based on transcriptome data showed that SWEETs play widely varying roles in development and stress tolerance in two rose species. Moreover, the different expression patterns of cold-response SWEET genes were verified by qRT-PCR between the moderately cold-resistant species R. chinensis ‘Old Blush’ and the extremely cold-resistant species R. beggeriana. Especially, SWEET2a and SWEET10c exhibited species differences after cold treatment and were sharply upregulated in the leaves of R. beggeriana but not R. chinensis ‘Old Blush’, indicating that these two genes may be the crucial candidates that participate in cold tolerance in R. beggeriana. Our results provide the foundation for function analysis of the SWEET gene family in roses, and will contribute to the breeding of cold-tolerant varieties of roses.
Publisher
MDPI AG
Subject
