【摘要】 为筛选可用于柞蚕(Antheraea pernyi)杂种优势预测的生理生化指标,利用生物数学方法分析了5龄幼虫的消化液淀粉酶活性与经济性状杂种优势的相关性。柞蚕消化液淀粉酶活性表现负向杂种优势,但其与生命力性状(收蚁结茧率)和产量性状(单蛾结茧数、单蛾茧层量、单蛾收茧量)均呈显著正相关,相关系数分别为0.8387,0.8092,0.8228,0.8162;而且其杂种优势率与上述经济性状的杂种优势率也呈显著正相关。因此,认为消化液淀粉酶活性可作为柞蚕杂种优势预测的一种候选生化指标。更多还原

【Abstract】 To screen the biochemical indictor for predicting the heterosis of Antheraea pernyi,the amylase activities in digestive fluid of fifth-instar larvae were tested,and the correlation between the amylase activities and the hybrid vigor of some economic characters were investigated by biomathematics method.Although the amylase activities in digestive fluid showed negative heterosis,it was found to be significantly correlated with survival character(e.g.the ratio of cocoon harvest to beginning rearing) and yield character(e.g.cocoon number per moth,cocoon shell weight per moth,and cocoon yields per moth).Therefore,amylase activities could be used as a biochemical indictor to predict the performance of related characters in the F1s of A.pernyi.更多还原