Genetic Differentiation of Inbred Progenies of Flammulina velutipes Strains

摘要：

F3-6 and F3-31, two white inbred progenies of F3 , were selected as the parental strains in the inbreeding experiment. Integrative analysis was conducted on the inbred progenies. Genetic differences appeared in inbreeding rate, fruiting rate, mycelium growth rate, fruit body generating period and fruit body yield among the inbred progenies. Both the mating-type factors and cultivation conditions contributed to the differences. The results showed that the highest inbreeding rate was 98.2％ , which belonged to the spores of F3. The fruiting rate of the inbred progenies of F3 was 95. 4％ , which was also the highest of the three groups. Compared with their parental strains, the inbred progenies of F3 -6 had the faster mycelium growth rate, shorter average fruit body generating periods and higher fruit body yield. Those of F3-31 had the faster mycelium growth rate, shorter average fruit body generating periods and lower fruit body yield than F3-31. No significant difference was observed among the mycelium and fruit body shape of inbred progenies. The fruit body yields of the three groups were not correlated to the mycelium growth rate. This study demonstrated that inbreeding could be an effective method to select excellent strains of Flammulina velutipes.

关键词： Flammulina velutipes Inbred Progeny Genetic Differentiation Growth Rate Fruit Body Developmental Period Fruit Body Yield

作者: Zhen Xu Xiaodong Shang Qi Tan Yingjie Pan

作者单位: National Engineering Research Center of Edible Fungi Key Laboratory of Applied Mycological Resources National Engineering Research Center of Edible Fungi Key Laboratory of Applied Mycological Resources Shanghai Ocean University, Shanghai 201306, China

会议类型: 国际会议

会议名称: The 18th Congress of the International Society for Mushroom Science(第十八届国际食用菌大会 ISMS18)

会议地点: 北京

会议语种:英文

页码: 278-283

在线出版日期: 2012-08-27（万方平台首次上网日期，不代表论文的发表时间）