Turnip aphids (Lipaphis erysimi) discriminate host plants based on the strain of Cauliflower mosaic virus infection

摘要: The degree of vector preference for virus-infected plants can alter the progress virus epidemics. objective this study is to test whether infection turnip with different strains Cauliflower mosaic (CaMV) influence feeding aphid (Lipaphis erysimi). Three CaMV that cause types symptoms on turnips were used in study. These NY8153 (severe, causes necrosis midrib and mottling severe stunting), W260 (mild, moderate stunting) H12 (symptomless). Results showed aphids preferred W260-infected plants, general. When given a choice, chose significantly more often than NY8153-infected or healthy plants. vs. H12-infected trend same direction. Also, infected when choice. By contrast, no between Therefore, we conclude recognize will choose specific over others. Specifically, prefer other choices. results suggest affects host choice may have implications spread strains.