摘要
对中红侧沟茧蜂雌蜂后代仔蜂性比产生影响的因素进行了研究。结果表明 ,雌蜂羽化后的日龄对后代性比没有影响 ,但不同雌蜂生产出的仔蜂性比间却有显著差异 ;通过近交试验发现 ,中红侧沟茧蜂间的近亲交配是导致仔蜂中大量出现雄蜂的重要原因。繁蜂时扩大种蜂种群 ,可以获得后代仔蜂的性比约 1∶1 ,解决了大量繁殖中红侧沟茧蜂中遇到的困难。
Previous studies showed that host age and size did not influence the sex ratio of Microplitis mediator offspring, but there were significant differences in sex ratio among offsprings produced by different female wasps. Experiment with brother and sister wasps indicated that inbreeding was a very important cause leading to male bias offspring sex ratio in rearing the wasp. Increasing population of the mating wasps could bring the sex ratio around 1∶1. The results implied a complementary sex determination (CSD) mechanism might play some roles in M. mediator sex determination.
出处
《中国生物防治》
CSCD
北大核心
2001年第4期155-158,共4页
Chinese Journal of Biological Control
基金
国家自然科学基金项目 (30 0 0 0 0 17)
农业部农作物病虫草害生物防治资源研究与利用重点实验室资助
