Genome-Wide Identification and Expression Analysis of the GH19 Chitinase Gene Family in Sea Island Cotton.

In this study, GH19 chitinase (Chi) gene family was systematically identified and characterized using genomic assemblies from four cotton species: , , , and . A suite of analyses was performed, including genome-wide gene identification, physicochemical property characterization of the encoded proteins, subcellular localization prediction, phylogenetic reconstruction, chromosomal mapping, promoter cis-element analysis, and comprehensive expression profiling using transcriptomic data and qRT-PCR (including tissue-specific expression, hormone treatments, and infection assays). A total of 107 GH19 genes were identified across the four species (35 in , 37 in , 19 in , and 16 in ).

Synthesis and Antifungal Activities of Schiff Base Derivatives Containing a Coumarin Moiety.

Naturally derived compounds often exhibit promising bioactivity. Coumarin is an important secondary metabolite widely found in various plants and fruits. In this work, a total of 30 novel Schiff base derivatives incorporating a coumarin moiety were synthesized and characterized using H NMR, C NMR, and HR-MS spectroscopies.

Genomic Insights into Genes: Key Role in Cotton Leaf Abscission Formation.

The cytokinin response regulator () gene is essential for cytokinin signal transduction, which plays a crucial role in plant growth and development. However, the functional mechanism of genes in cotton leaf abscission remains incompletely understood. In this study, a total of 86 genes were identified within the genome of .

regulates the resistance of to Verticillium wilt through jasmonic acid and flavonoid-related pathways.

F-box-LRR (FBL) genes play crucial roles in the response of plants to pathogen stress. This study involved a systematic analysis of the evolution of the FBL gene family in from a whole-genome perspective, and through expression pattern analysis combined with virus-induced gene silencing (VIGS), was identified as a gene associated with resistance to Verticillium wilt in . Further RNA-seq analysis revealed key pathways and genes regulated by .

Pangenome analysis reveals yield- and fiber-related diversity and interspecific gene flow in Gossypium barbadense L.

Gossypium barbadense is renowned for its superior fiber quality, particularly its extra-long fibers, although its fiber yield is lower compared to G. hirsutum. Here, to further reveal fiber-related genomic variants of G.

Mining Key Drought-Resistant Genes of Upland Cotton Based on RNA-Seq and WGCNA Analysis.

Cotton, as a globally important fiber crop, is significantly affected by drought stress during production. This study uses the drought-resistant variety Jin and the drought-sensitive variety TM-1 as test materials. Through multi-period drought stress treatments at 0 d, 7 d, 10 d, 15 d, and 25 d, combined with dynamic monitoring of physiological indicators, RNA sequencing, and weighted gene co-expression network analysis, the molecular mechanism of cotton drought resistance is systematically analyzed.

Multiomics Studies on the Effects of High-Temperature Stress on Male Sterility in .

High-temperature (HT) stress has been recognized as one of the main factors restricting the normal growth and development of cotton and severely affects fiber quality and yield. To elucidate the regulatory mechanism of male sterility-related hormones in under HT stress, we explored candidate genes closely related to male sterility in . We studied the expression profiles of hormones and genes in the anthers of GB150 under HT stress by combining transcriptomic and metabolomic analyses.

Novel 5H-Chromeno[4,3-b]Pyridin-5-One Derivatives Against Phytopathogenic Fungi: Synthesis and Molecular Docking.

The development of novel fungicides is imperative for the protection of crops and the assurance of sustainable agricultural development. A total of 33 5H-chromeno[4,3-b]pyridin-5-one derivatives have been synthesized, and the antifungal activities of these derivatives against four pathogenic fungi (Alternaria alternata, Alternaria solani, Botrytis cinerea, and Fusarium oxysporum) have been evaluated. The structure-property relationship indicated that the introduction of side-chain groups at the hydroxyl position played a significant role in the antifungal activity, with the inhibition rates increasing by 3-4 folds.

Functional Study of -Mediated Strigolactone Signaling Pathway in Regulating Cotton Fiber Elongation and Plant Growth.

The novel plant hormone strigolactones (SL) are involved significantly in plant growth and development. Its key members , , can modulate SL signal reception and response negatively and can regulate plant branching remarkably. There are relatively scarce studies of cotton SMXL gene family, and this study was carried out to clarify the role of in cotton fiber development.

Uncovering miRNA-mRNA regulatory modules of cotton in response to cadmium stress.

Cadmium (Cd), a non-essential heavy metal for plant, adversely effects on crop productivity and food safety. Cotton, predominantly cultivated as a non-food crop, offers the advantage of not transferring Cd into the food chain, making it an effective option for remediating Cdcontaminated soils. While previous researches have extensively examined the gene expression responses of cotton to Cd stress, insights at the post-transcriptional level remain limited.

Effect of the HCT Gene on Lignin Synthesis and Fiber Development in Gossypium barbadense.

As one of the key enzymes in the metabolic pathway of phenylpropane, shikimate hydroxycinnamoyl transferase (HCT) is mainly involved in the biosynthesis of the plant secondary cell wall, which is closely related to cotton fiber quality. In this study, whole-genome identification and bioinformatics analysis of the HCT gene family were performed in G. barbadense.

The GhEB1C gene mediates resistance of cotton to Verticillium wilt.

The GhEB1C gene of the EB1 protein family functions as microtubule end-binding protein and may be involved in the regulation of microtubule-related pathways to enhance resistance to Verticillium wilt. The expression of GhEB1C is induced by SA, also contributing to Verticillium wilt resistance. Cotton, as a crucial cash and oil crop, faces a significant threat from Verticillium wilt, a soil-borne disease induced by Verticillium dahliae, severely impacting cotton growth and development.

Transcriptome Analysis and Identification of Genes Associated with Cotton Seed Size.

Cotton seeds, as the main by-product of cotton, are not only an important raw material for edible oil and feed but also a source of biofuel. The quality of cotton seeds directly affects cotton planting and is closely related to the yield and fiber quality. However, the molecular mechanism governing cotton seed size remains largely unexplored.

The Drought Tolerance Function and Tanscriptional Regulation of in .

Drought stress significantly affects the growth, development, and yield of cotton, triggering the response of multiple genes. Among them, ascorbate peroxidase (APX) is one of the important antioxidant enzymes in the metabolism of reactive oxygen species in plants, and APX enhances the ability of plants to resist oxidation, thus increasing plant stress tolerance. Therefore, enhancing the activity of APX in cells is crucial to improving plant stress resistance.

Revealing the Complete Bispecific Phosphatase Genes (DUSPs) across the Genome and Investigating the Expression Patterns of GH_A11G3500 Resistance against .

DUSPs, a diverse group of protein phosphatases, play a pivotal role in orchestrating cellular growth and development through intricate signaling pathways. Notably, they actively participate in the MAPK pathway, which governs crucial aspects of plant physiology, including growth regulation, disease resistance, pest resistance, and stress response. DUSP is a key enzyme, and it is the enzyme that limits the rate of cell metabolism.

Functional Analysis of the Gene in Cotton Resistance to Verticillium Wilt.

Cotton is a critical crop with massive economic implications worldwide. Verticillium wilt is a soil-borne ailment caused by , which harms the growth and development of cotton. Therefore, investigating the genes associated with resistance to verticillium wilt is of particular significance.

Combined genome and transcriptome analysis of elite fiber quality in Gossypium barbadense.

Gossypium barbadense, which is one of several species of cotton, is well known for its superior fiber quality. However, the genetic basis of its high-quality fiber remains largely unexplored. Here, we resequenced 269 G.

Rapidly mining candidate cotton drought resistance genes based on key indicators of drought resistance.

Background: Focusing on key indicators of drought resistance is highly important for quickly mining candidate genes related to drought resistance in cotton.

Results: In the present study, drought resistance was identified in drought resistance-related RIL populations during the flowering and boll stages, and multiple traits were evaluated; these traits included three key indicators: plant height (PH), single boll weight (SBW) and transpiration rate (Tr). Based on these three key indicators, three groups of extreme mixing pools were constructed for BSA-seq.

Raffinose degradation-related gene was screened out responding to salinity stress through expression patterns of family genes.

A-galactosidases (AGALs), the oligosaccharide (RFO) catabolic genes of the raffinose family, play crucial roles in plant growth and development and in adversity stress. They can break down the non-reducing terminal galactose residues of glycolipids and sugar chains. In this study, the whole genome of AGALs was analyzed.

Glyceraldehyde-3-phosphate dehydrogenase is associated with drought resistance in .

Background: Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is the central enzyme of glycolysis and plays important regulatory roles in plant growth and development and responses to adverse stress conditions. However, studies on the characteristics and functions of cotton GAPDH family genes are still lacking.

Methods: In this study, genome-wide identification of the cotton GAPDH gene family was performed, and the phylogeny, gene structures, promoter progenitors and expression profiles of upland cotton GAPDH gene family members were explored by bioinformatics analysis to highlight potential functions.

QTL Verification and Candidate Gene Screening of Fiber Quality and Lint Percentage in the Secondary Segregating Population of .

Fiber quality traits, especially fiber strength, length, and micronaire (FS, FL, and FM), have been recognized as critical fiber attributes in the textile industry, while the lint percentage (LP) was an important indicator to evaluate the cotton lint yield. So far, the genetic mechanism behind the formation of these traits is still unclear. Quantitative trait loci (QTL) identification and candidate gene validation provide an effective methodology to uncover the genetic and molecular basis of FL, FS, FM, and LP.