植物遗传资源学报2026，Vol.27Issue(3)：491-505,15.DOI:10.13430/j.cnki.jpgr.20251019001
烟草抗花生根结线虫病种质资源的筛选与鉴定
Screening and Identification of Resistant Germplasm Resources to Peanut Root Knot Nematode(Meloidogyne arenaria)in Tobacco(Nicotiana tabacum L.)
摘要
Abstract
Root-knot nematode disease,a global plant root disease caused by parasitic root-knot nematodes(Meloidogyne spp.),severely impacts tobacco production.Recently,population shifts have occurred resulting in the prevalence of M.arenaria in Yunnan province,which has now become an urgent issue for tobacco production.However,studies on root-knot nematodes has historically focused on M.incognita,with relatively limited studies on M.arenaria.Based on our previous research,we developed a STARP molecular marker tightly linked to a resistant QTL.By deployment of this marker to screen 387 germplasm resources,we identified 18 positive tobacco germplasms which were subsequently evaluated for resistance to M.arenaria under three different environments.Phenotypic assessments revealed five tobacco varieties or lines with stable resistance to M.arenaria:Coker 316,TI 706,SA1224,SA1215,and Y3.To our knowledge,it is the first report identifying TI 706 and Coker 316 as resistance to M.arenaria.Furthermore,Coker 316,TI 706,and SA1224 exhibit stable and reliable resistance and thus serve as valuable sources for resistance breeding.关键词
烟草/种质资源/花生根结线虫病/抗性/筛选鉴定Key words
tobacco/germplasm resources/Meloidogyne arenaria/resistance/screening and identification引用本文复制引用
冯智宇,焦芳婵,盖晓彤,吴兴富,黄昌军,陈学军,李洋洋,童治军,王扬,李卫祥,李永平..烟草抗花生根结线虫病种质资源的筛选与鉴定[J].植物遗传资源学报,2026,27(3):491-505,15.基金项目
国家自然科学基金(32260526,32160618) （32260526,32160618）
中国烟草总公司云南省烟草公司科技项目(2022530000241017) （2022530000241017）
云南省技术创新人才培养对象项目(202405AD350100)National Natural Science Foundation of China(32260526,32160618) （202405AD350100）
Science and Technology Project of Yunnan Provincial Tobacco Company(CNTC)(2022530000241017) （CNTC）
Project for Technology Innovation Talent Training in Yunnan(202405AD350100) （202405AD350100）
