摘要
以种群平均产卵量(m)和样本的方差(V)为参数建立了1个烟粉虱产卵量的寄主适应性评价模型(O=m/lnV),并利用这个模型评估了烟粉虱在37种寄主植物上的产卵适应度.结果显示,烟粉虱虽然在供试的绝大多数寄主上都能够产卵,但寄主植物能够显著影响雌虫的产卵量.用聚类分析的方法可将37种寄主植物分为3个类别:嗜好寄主、适宜寄主和非适宜寄主,聚类分析的结果与适应域假说不一致,亲缘关系很近的植物种类分属于不同的寄主类别.通过配对样本均值比较的分析发现,不同生物型的烟粉虱种群具有明显差异,而相同生物型的种群,虽然取食经验不同,却表现出较高的相似性.
A ecological model O = m/lnV was develpoed to assess host adaptation for fecundity of Bemisia tabaci （Gennaidus）, where m = parameters of average eggs within a time period, and V = variance of samples. The model was used to assess the fecundity of whitefly on 37 plant species. The results showed that the whitefly was able to lay eggs on most host plants, and the fecundity of adults was affected by host plants either. 37 host plants were classified with clustering analysis into 3 groups： favorite hosts, adaptive hosts and non-adaptive hosts. The results from clustering analysis were not accordant with host-domain hypothesis, because the close relative plants were classified to different clusters. It was found that,in analysis of pair-samples mean comparing, the different bio-type of whitefly showed a significant difference in the host adaptation while the same bio-type whitefly population with different showed the quite similar performance.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2007年第2期29-33,共5页
Journal of South China Agricultural University
基金
国家自然科学基金(30400292)
关键词
烟粉虱
寄主适应性
繁殖力
生态模型
Bemisia tabaci
host adaptation
fecundity
ecological model feeding experience
