Genome-wide identification and expression-pattern analysis of sulfate transporter (SULTR) gene family in cotton under multiple abiotic stresses and fiber development

Genome-wide identification of F-box-LRR gene family and the functional analysis of CsFBXL13 transcription factor in tea plants

This study focused on the identification and functional analysis of the F-box-LRR (FBXL) protein family in tea tree (Camellia sinensis), aiming to reveal its role in spring bud germination and environmental adaptation. Thirty-seven members of the tea tree F-box-LRR gene family were identified and systematically analyzed for their chromosomal localization, gene structure, conserved motifs, and cis-acting elements by bioinformatics methods. It was found that these genes were distributed on 14 chromosomes, with strong conserved and inter-gene covariance characteristics. Cis-acting element analysis showed that the F-box-LRR family members were associated with signals such as low temperature, gibberellin and growth hormone, which may play a key role in spring low-temperature germination. In addition, the study verified that the CsWRKY40 transcription factor directly binds to the promoter region of the CsFBXL13 gene and significantly activates its expression by subcellular localization, yeast one-hybridization and dual luciferase assays, revealing the important function of the CsWRKY40-CsFBXL13 regulatory axis in low-temperature response and spring bud germination in tea tree. This study not only expands the understanding of the F-box-LRR protein family, but also provides potential molecular targets for improving the resistance and productivity of tea tree through molecular breeding.

Identification and Expression Analysis of Sulfate Transporter Genes Family and Function Analysis of GmSULTR3;1a from Soybean

Sulfate transporters (SULTRs) are essential for the transport and absorption of sulfate in plants and serve as critical transport proteins within the sulfur metabolism pathway, significantly influencing plant growth, development, and stress adaptation. A bioinformatics analysis of SULTR genes in soybean was performed, resulting in the identification and classification of twenty-eight putative GmSULTRs into four distinct groups. In this study, the characteristics of the 28 GmSULTR genes, including those involved in collinearity, gene structure, protein motifs, cis-elements, tissue expression patterns, and the response to abiotic stress and plant hormone treatments, were systematically analyzed. This study focused on conducting a preliminary functional analysis of the GmSULTR3;1a gene, wherein a high expression level of GmSULTR3;1a in the roots, stems, and leaves was induced by a sulfur deficiency and GmSULTR3;1a improved the salt tolerance. A further functional characterization revealed that GmSULTR3;1a-overexpressing soybean hairy roots had higher SO42-, GSH, and methionine (Met) contents compared with the wild-type (WT) plant. These results demonstrate that the overexpression of GmSULTR3;1a may promote the sulfur assimilation metabolism and increase the content of sulfur-containing amino acids in plants.