Rapid turnover of intra-host genetic diversity in Zucchini yellow mosaic virus.
نویسندگان
چکیده
Genetic diversity in RNA viruses is shaped by a variety of evolutionary processes, including the bottlenecks that may occur at inter-host transmission. However, how these processes structure genetic variation at the scale of individual hosts is only partly understood. We obtained intra-host sequence data for the coat protein (CP) gene of Zucchini yellow mosaic virus (ZYMV) from two horizontally transmitted populations - one via aphid, the other without - and with multiple samples from individual plants. We show that although mutations are generated relatively frequently within infected plants, attaining similar levels of genetic diversity to that seen in some animal RNA viruses (mean intra-sample diversity of 0.02%), most mutations are likely to be transient, deleterious, and purged rapidly. We also observed more population structure in the aphid transmitted viral population, including the same mutations in multiple clones, the presence of a sub-lineage, and evidence for the short-term complementation of defective genomes.
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Deep sequencing reveals persistence of intra- and inter-host genetic diversity in natural and greenhouse populations of zucchini yellow mosaic virus.
The genetic diversity present in populations of RNA viruses is likely to be strongly modulated by aspects of their life history, including mode of transmission. However, how transmission mode shapes patterns of intra- and inter-host genetic diversity, particularly when acting in combination with de novo mutation, population bottlenecks and the selection of advantageous mutations, is poorly unde...
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متن کاملشناسایی و پراکندگی ویروس‌های آلوده کننده خیار گلخانه‌ای در منطقه جیرفت و بررسی برخی از خصوصیات فیزیکوشیمیایی ویروس موزائیک زرد کدو Zucchini yellow mosaic virus (ZYMV)
Cucumber cultivars, grown in greenhouse in the Jiroft region, were surveyed for the relative incidence of Zucchini yellow mosaic virus (ZYMV), Watermelon mosaic virus-2 (WMV-2), Cucumber mosaic virus (CMV) and Tomato spotted wilt virus (TSWV) from 2001 to 2004. Samples from 1294 plants representing different cultivars were analysed by Enzyme-linked immunosorbent assay (ELISA) and Dot immunobi...
متن کاملشناسایی و پراکندگی ویروس‌های آلوده کننده خیار گلخانه‌ای در منطقه جیرفت و بررسی برخی از خصوصیات فیزیکوشیمیایی ویروس موزائیک زرد کدو Zucchini yellow mosaic virus (ZYMV)
Cucumber cultivars, grown in greenhouse in the Jiroft region, were surveyed for the relative incidence of Zucchini yellow mosaic virus (ZYMV), Watermelon mosaic virus-2 (WMV-2), Cucumber mosaic virus (CMV) and Tomato spotted wilt virus (TSWV) from 2001 to 2004. Samples from 1294 plants representing different cultivars were analysed by Enzyme-linked immunosorbent assay (ELISA) and Dot immunobind...
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ورودعنوان ژورنال:
- Virus research
دوره 155 2 شماره
صفحات -
تاریخ انتشار 2011