Genes resistant to leaf spot disease of Brassica napus
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Last Update: 2011-09-06
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Source: Internet
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Author: User
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British researchers have found a gene that can resist the leaf spot disease of rape, and they hope to cultivate a new rape variety that can resist the disease and produce high yield on this basis Researchers from the University of Hertfordshire and other institutions reported in the new issue of the British Journal of plant pathology that they found the resistance gene r in some varieties of rape, which is located on the A1 chromosome of rape The rape with this gene will produce a special protein, which will affect the reproductive behavior of the pathogen of leaf spot disease Specifically, the protein can restrict the asexual reproduction of the pathogen of leaf spot, but does not affect its sexual reproduction According to reports, the frequency of sexual reproduction of related pathogens is not high, so if all rape contains R gene, the probability of rape suffering from leaf spot will be greatly reduced Professor Bruce Fett, who participated in the study, said it was a new way to fight leaf spot If we can cultivate new rape varieties on this basis, we can not only increase the yield, but also reduce the use of chemical fungicides and protect the environment.
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