从功能基因到生物学性状:大丽轮枝菌致病性形成的分子基础

大丽轮枝菌为典型的土传维管束病原真菌,针对其致病相关基因的挖掘与功能解析一直是植物病理学研究的热点.大丽轮枝菌具有定殖维管束、"毒素"致萎、形成微菌核、种群分化多元化等特征,这些性状最终支撑或决定了病原对寄主的致病性基础.从进化角度来说,功能基因决定生物学性状.截至目前,在大丽轮枝菌中已鉴定出上百个功能基因;但针对其与...

From Functional Genes to Biological Characteristics:The Molecular Basis of Pathogenicity in Verticillium dahliae

Verticillium dahliae is a soil-borne vascular pathogen fungus,excavation and functional analysis of its disease-related genes has been a hotspot in plant pathology research.V.dahliae is characterized of adapting to the plant vascular niche,of inducing foliar wilting either by producing toxins or employing its secretome,of forming microsclerotia for long-term survival,and of evolving a variety of population structures,etc.,thus these traits ultimately support or determine the pathogenic basis of pathogenicity to the host.Evolutionarily,functional genes determine the biological characteristics of a pathogen.Currently,hundreds of functional genes have been identified in V.dahliae,but their relationships to the key biological characteristics and how they contribute to its virulence have remained an unexplored topic.We systematically outlined the development process of identifying the functional genes in V.dahliae,focused on sorting the relationships between pathogenicity of V.dahliae and the functional genes determining its key biological traits based on the logic clue of functional genes determining biological traits,thus clarified the relationships between pathogenicity of V.dahliae and the functional genes determining its key biological traits.This exploration will provide the theoretical foundations for systematically constructing the functional gene networks of key biological characteristics in V.dahliae and explaining the molecular basis of pathogenicity and virulence in V.dahliae from the aspect of the functional genes determining its key biological traits.