Journal
PLANTS-BASEL
Volume 12, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/plants12071449
Keywords
strawberry; YTH domain; RNA-binding protein; expression analysis
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We characterized YTH genes in diploid forest strawberry and identified nine YTH genes belonging to two groups, YTHDC and YTHDF, with YTHDF further divided into three subfamilies. YTH3 and YTH4 are a gene pair generated by tandem repeat replication, sharing similarities in gene structure and motifs. Our study provides valuable information for studying YTH genes in strawberry.
Plant growth and development processes are tightly regulated at multiple levels, including transcriptional and post-transcriptional levels, and the RNA-binding protein YTH regulates gene expression during growth and development at the post-transcriptional level by regulating RNA splicing, processing, stability, and translation. We performed a systematic characterization of YTH genes in diploid forest strawberry and identified a total of nine YTH genes. With the help of phylogenetic analysis, these nine genes were found to belong to two different groups, YTHDC and YTHDF, with YTHDF being further subdivided into three subfamilies. Replication analysis showed that YTH3 and YTH4 are a gene pair generated by tandem repeat replication. These two genes have similarities in gene structure, number of motifs, and distribution patterns. Promoter analysis revealed the presence of multiple developmental, stress response, and hormone-response-related cis-elements. Analysis of available transcriptome data showed that the expression levels of most of the YTH genes were stable with no dramatic changes during development in different tissues. However, YTH3 maintained high expression levels in all tissues and during fruit development, and YTH4 was expressed at higher levels in tissues such as flowers, leaves, and seedlings, while it was significantly lower than YTH3 in white fruits and ripening fruits with little fluctuation. Taken together, our study provides insightful and comprehensive basic information for the study of YTH genes in strawberry.
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