摘要
dsRNA in Cryphonectria parasitica could be transmitted to progeny through conidia with varying efficiency in culture.Both light and prolonging cultural time could reduce the transmission efficiency,but the effect of light was more efficient.No dsRNA segments were found to be loss after 30 generations subculture,indicating that dsRNA could transmitted stably through subculture.Vegetative incompatibility was a barrier for the transfer of dsRNA from one isolate to another,and hypovirulence conversion reduced as the number of different VC genes between donor and recipient isolates increased.
dsRNA in Cryphonectria parasitica could be transmitted to progeny through conidia with varying efficiency in culture.Both light and prolonging cultural time could reduce the transmission efficiency,but the effect of light was more efficient.No dsRNA segments were found to be loss after 30 generations subculture,indicating that dsRNA could transmitted stably through subculture.Vegetative incompatibility was a barrier for the transfer of dsRNA from one isolate to another,and hypovirulence conversion reduced as the number of different VC genes between donor and recipient isolates increased.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2004年第1期185-188,共4页
Scientia Silvae Sinicae
基金
国家自然科学基金项目资助 (3 0 0 70 494)
关键词
栗疫病菌
弱毒力特征
真菌病毒
弱毒力转化
营养体亲和群
Cryphonectria parasitica, Mycovirus, Hypovirulence conversion, Vegetative compatibility group(VCG)
