Liu Yu, Huang Yuning, Li Zhao, Feng Ming, Ge Weide, Zhong Chao, Xue Renfeng
College of Agronomy, Shenyang Agricultural University, Shenyang, China.
Crop Research Institute, Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning, China.
Front Genet. 2023 Jan 20;14:1137634. doi: 10.3389/fgene.2023.1137634. eCollection 2023.
Fusarium wilt, which affects common bean all across the world, is caused by f. sp. (). It is necessary to have functional genes in response to infection because they might be used to manage disease. As a crucial regulator, -binding transcription factor () is engaged in the defense mechanism of plants against pathogens. The role of regulators in common bean in response to infection, however, has not been documented. Hence, we performed genome-wide identified and characterized eight genes in common bean. In this study, eight genes were distributed on six chromosomes and classified into four subgroups. The genes have the same conserved bZIP and DOG1 domains, but there are specific sequence structures in different . Phylogenetic and synteny analysis explained that gene has a close genetic relationship with legume and that and may play an important role in evolution. Transcriptome data explained that expression levels of genes showed diversity in different tissues. After inoculation, the expression levels of 3 and were significantly different between resistant and susceptible genotypes. Under SA treatment, the expression levels of , , , and were significantly different. These results imply that and play key roles in SA-mediated resistance to Fusarium wilt. Together, these findings advance knowledge of the gene family in common bean and will help future studies aimed at reducing Fusarium wilt.
镰刀菌枯萎病影响着全球的普通菜豆,由尖孢镰刀菌(F. sp.)引起。由于功能基因可能用于病害管理,因此有必要拥有响应感染的功能基因。作为关键调节因子,bZIP结合转录因子(bZIP)参与植物对病原体的防御机制。然而,普通菜豆中bZIP调节因子在响应尖孢镰刀菌感染时的作用尚未见报道。因此,我们在全基因组范围内鉴定并表征了普通菜豆中的8个bZIP基因。在本研究中,8个bZIP基因分布在6条染色体上,并分为4个亚组。这些bZIP基因具有相同的保守bZIP和DOG1结构域,但不同的bZIP存在特定的序列结构。系统发育和共线性分析表明,bZIP基因与豆科植物的bZIP具有密切的遗传关系,并且bZIP和DOG1可能在进化中起重要作用。转录组数据表明,bZIP基因在不同组织中的表达水平存在差异。接种尖孢镰刀菌后,抗性和感病基因型之间3个bZIP基因的表达水平存在显著差异。在水杨酸(SA)处理下,5个bZIP基因的表达水平存在显著差异。这些结果表明,bZIP和DOG1在SA介导的对镰刀菌枯萎病的抗性中起关键作用。总之,这些发现增进了对普通菜豆bZIP基因家族的了解,并将有助于未来旨在减少镰刀菌枯萎病的研究。