数字农科院2.0

The Identification of Auxin Response Factors and Expression Analyses of Different Floral Development Stages in Roses

文献类型： 外文期刊

作者： Rui Huang;Xiaoni Zhang;Kaiqing Luo;Luke R. Tembrock;Sen Li;Zhiqiang Wu

作者机构：

关键词： （1-1-2）auxin response factor;flower development;gene expression;rose

期刊名称： Genes

ISSN： 2073-4425

年卷期： 2025 年 16 卷 1 期

页码：

收录情况： SCIE（2025版）

摘要： Background/Objectives: Auxin response factors (ARFs) are important in plant growth and development, especially flower development. However, there is limited research on the comprehensive identification and characterization of ARF genes in roses. Methods: We employed bioinformatics tools to identify the ARF genes of roses. These genes were characterized for their phylogenetic relationships, chromosomal positions, conserved motifs, gene structures, and expression patterns. Results: In this study, a total of 17 ARF genes were identified in the genomes of Rosa chinensis ‘OB’, R. chinensis ‘CH’, R. rugosa, and R. wichurana. Based on RNA-seq analyses, we found that the ARF genes had diverse transcript patterns in various tissues and cultivars. In ‘CH’, the expression levels of RcCH_ARFs during different flower-development stages were classified into four clusters. In cluster 3 and cluster 4, RcCH_ARFs were specifically high and low in different stages of floral evocation. Gene expression and phylogenetic analyses showed that RcCH_ARF3, RcCH_ARF4, and RcCH_ARF18 were likely to be the key genes for rose flower development. Conclusions: The identification and characterization of ARF genes in Rosa were investigated. The results presented here provide a theoretical basis for the molecular mechanisms of ARF genes in plant development and flowering for roses, with a broader application for other species in the rose family and for the development of novel cultivars.

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