杏鲍菇杂交F_1代群体部分性状遗传分化研究及F82菌株的选育  

Preliminary study on genetic characters of F1 progenies of Pleurotus eryngii and breeding of F82 strain

作　　者：李红梅[1,2] 尚晓冬[2] 谭琦[2] 潘迎捷[1] 

机构地区：[1]上海海洋大学食品科学学院,上海200090 [2]上海市农业遗传育种重点实验室,上海农业科学院食用菌研究所,上海201106

出　　处：《上海农业学报》2009年第2期52-57,共6页Acta Agriculturae Shanghai

基　　金：上海市科技兴农重点攻关项目[沪农科攻字(2006)第3-1号]资助

摘　　要：以2号菌株(杏韩)和24号菌株(广杏)杂交组合的F1群体为试材,对杏鲍菇的菌丝生长速度、产量、子实体数及单菇重等性状遗传分化进行了初步研究。结果表明:(1)杂交F1代性状广泛分离,大部分性状平均值低于亲中值,属于数量性状遗传。但后代性状的变异系数有较大差异,均盖径的变异系数(38.86%)和均单菇重的变异系数(30.31%)较大,说明其遗传潜能较大。(2)杂交后代菌丝生长速度与单产无显著相关性,现原基时间与产量成正相关性,菇峰期与生物学效率极显著负相关。(3)F82菌株子实体单产最高(186.0 g)显著高于双亲,其生物转化率达到66.4%。The F1 population of cross combination between Strain 2 （Xinghan） and Strain 24 （Guangxing） was used as a test material of Pleurotus eryngii and the characters were studied in terms of mycelium growth rate,yield, fruit body number and fruit body weight. The results were as follows： 1） Many quantitative characters of the F1 population showed a very extensive segregation and averagely below mid-parent. The coefficients of variation（CVs）of the tested characters differed significantly and the CVs of fruit body weight and pileus diameter were comparatively great（30.31% and 38.86%, respectively）, showing a high genetic potential. 2）The correlation was not significant between myceli- um growth rate and yield, but significantly positive between primordium time and fruit yield. There was a significant negative correlation between the peak fruiting period and the biological efficiency. 3） A hybrid strain F82 was the highest in yield（186.0 g） and significantly higher than its parents＇and its biological efficiency reached 66.4%.

关 键 词：杏鲍菇 F1群体 性状 遗传变异 

分 类 号：S646[农业科学—蔬菜学]