镰菌属的真菌是重要的植物病原体,引起各种各样的疫病、烂根或枯萎。有些菌种宿主选择范围很宽,而有些则选择范围较窄。对三个宿主选择范围有宽有窄的镰菌属真菌(其中两个刚完成测序)所做的比较基因组研究,为了解是什么驱动这些差异的提供了线索。后续实验工作表明,仅仅将两个菌种 Fusarium fungi are important plant pathogens, causing a wide variety of blight, rot or root blight. Some species have a wide range of host options, while others have a narrow range of options. A comparative genomic study of three broad-spectrum, narrow-range Fusarium species (two of which have just completed sequencing) was selected to provide clues as to what drives these differences. Subsequent experimental work shows that only two strains