期刊
ANNUAL REVIEW OF PHYTOPATHOLOGY
卷 60, 期 -, 页码 121-141出版社
ANNUAL REVIEWS
DOI: 10.1146/annurev-phyto-121421-125135
关键词
Barley yellow dwarf virus; Cereal yellow dwarf virus; Luteovirus; Polerovirus; RNA-dependent RNA polymerase; subgenomic RNA; cap-independent translation; recoding; satellite RNA
资金
- Iowa State University Plant Sciences Institute Faculty Scholar award
- State of Iowa fund of the Iowa Agriculture and Home Economics Station, Ames, Iowa [4308]
- Hatch Act fund of the Iowa Agriculture and Home Economics Station, Ames, Iowa [4308]
Yellow dwarf viruses are economically important and widespread in cereal crops. They have common biological properties but fall into two unrelated taxa based on their genomes. This article provides an overview of their characteristics, replication mechanisms, and highlights key unanswered questions in research.
Yellow dwarf viruses are the most economically important and widespread viruses of cereal crops. Although they share common biological properties such as phloem limitation and obligate aphid transmission, the replication machinery and associated cis-acting signals of these viruses fall into two unrelated taxa represented by Barley yellow dwarf virus and Cereal yellow dwarf virus. Here, we explain the reclassification of these viruses based on their very different genomes.We also provide an overview of viral protein functions and their interactions with the host and vector, replication mechanisms of viral and satellite RNAs, and the complex gene expression strategies. Throughout, we point out key unanswered questions in virus evolution, structural biology, and genome function and replication that, when answered, may ultimately provide new tools for virus management.
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