Transgenic Plant
Bruise resistant tomatoes have been developed by the expression of antisense RNA against

glycerol 1 phosphate acyl transferase
polygalactouranase
Sucrose phosphate synthase gene
ACC deaminase

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Transgenic Plant
Cross protection against viruses in transgenic plants can be obtained by

inoculating the susceptible strain with the coat proteins of virulent strain
inoculating the susceptible strain of a crop with a mild strain of a virus that helps in developing resistance against more virulent strain
inoculating the susceptible strain with genes of nucleocapsid
any of the above

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