Genome-wide Identification and Analysis of KCS Gene Family in Nicotiana tabacum under Abiotic Stress
[Purpose]Beta-ketoacyl-CoA synthetase(KCS)is a key enzyme that regulates plant fatty acid synthesis and plays an important role in plant growth,development and in response to biological/abiotic stresses.However,the KCS gene in tobacco has not been reported yet.In order to investigate the role of the tobacco KCS gene under abiotic stress,this study conducted research on the tobacco KCS gene family.[Methods]Bioinformatics methods were employed in this study to analyze phylogenetic evolution,collinearity,and expression patterns of KCS genes.[Results]A total of 41 KCS genes were identified in the tobacco genome.The newly identified tobacco KCS genes and those from Arabidopsis thaliana could be divided into eight subgroups,most of which included members from both Arabidopsis thaliana and tobacco.A total of 10 NtKCS members originated from genome-wide replication events,and NtKCS10 and NtKCS11 are homologous to AtKCS02,suggesting they may perform similar biological functions.The NtKCS gene promoter contains numerous stress-related cis-elements,and their expression shows tissue specificity,with most members showing increased expression under drought and salt stress,suggesting NtKCS members may play a role in tobacco's stress response signal transduction.[Conclusion]In this study,the KCS gene family members in tobacco were systematically identified and analyzed.These results provide a theoretical basis for further exploring the biological functions of the tobacco KCS gene family.
万方数据
维普
