Response of phytohormone mediated plant homeodomain (PHD) family to abiotic stress in upland cotton (Gossypium hirsutum spp.)

Abstract Background The sequencing and annotations of cotton genomes provide powerful theoretical support to unravel more physiological functional information. Plant homeodomain (PHD) protein family has been reported be involved in regulating various biological processes plants. However, their studies have not yet carried out cotton. Results In this study, 108, 55, 52 PHD genes were identified G. hirsutum , raimondii arboreum respectively. A total 297 from three species, Arabidopsis rice divided into five groups. We performed chromosomal location, phylogenetic relationship, gene structure, conserved domain analysis for GhPHD genes. unevenly distributed on each chromosome. At_05, Dt_05, At_07 chromosomes. proteins depicted domains, exhibiting similar structure clustered together. Further, whole genome duplication (WGD) indicated that purification selection greatly contributed the maintenance family. Expression pattern based RNA-seq data showed most clear tissue-specific spatiotemporal expression patterns elucidating multiple functions GhPHDs plant growth development. Moreover, cis -acting elements revealed may respond a variety abiotic phytohormonal stresses. regard, some good response against Additionally, co-expression network are essential development, while stresses help improve tolerance adverse environmental conditions. Conclusion This study will useful information facilitate further research related vital roles