Genome-wide characterization of the Rho family in cotton provides insights into fiber development

Abstract Background Cotton is the source of natural fibers globally, fulfilling 90% textile industry's requirements. However, fiber development a complex biological process comprising four stages. Fiber develops from single cell, and cell elongation vital in development. Therefore, it pertinent to understand exploit mechanisms underlying during A previous report about division control protein 42 (CDC-42) with its key role eukaryotes inspired us explore homologs Rho GTPases for understanding cotton Result We classified 2 066 proteins 8 Gossypium species into 5 groups within D sub-genomes, respectively. Asymmetric evolution members was observed among five tetraploids. Population fixation statistics between two short long genotypes identified highly diverged regions encompassing 34 genes G. hirustum, 31 them were retained through further validation by genome wide association analysis (GWAS). Moreover, weighted gene co-expression network characterized genome-wide expression patteren based on previously published transcriptome data. Twenty modules as hub which potentially related Interaction networks transcriptional abundance ontology (GO) enrichment emphasized involvement wall biosynthesis, fatty acid elongation, other processes. Conclusion Our study cotton, provided insights potential application improvement.