Detection of Risks Associated with Coat Protein Transgenics
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Last Update: 2021-01-14
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Source: Internet
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Author: User
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Recent advances in the understanding of the molecular mechanisms of how viruses function and how they interact with plants have led to the development of various nonconventional approaches to protection of plants against viruses. Many of these approaches involve the introduction of viral or virus-based sequences into the plant’s genome. Expression of these sequences then interferes with one or more of the viral functions, thus giving some protection against the virus. This topic has attracted considerable attention and has been reviewed several times previously (
seerefs.1
–
16
). The viral genes most frequently used to provide protection are those for the coat protein (CP), the viral replicase, and the cell-to-cell movement protein (
see
reviews mentioned above for details). In the case of C P, protection is often given by the unmodified gene product. However, most other gene products are used in a form modified to affect normal functioning. There is increasing evidence that in some situations it is the expressed RNA, and not the gene product, that gives the protection (
see
Chapter 53 ).
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