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PERSPECTIVE
1 Department of Pathology, University of California, Davis, California 95616, USA; 2 Plant Gene Expression Center, United States Department of Agriculture-Agricultural Research Service, Albany, California 94710, USA
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Who among us has not heard the phrase, all good things come at a cost. Luckily, the cost/benefit scenarios that we face day to day are generally minor (extra piece of cake or a slim figure) compared with having to choose between the opportunity to have children and disease immunity. The work by Wang and colleagues (Chu et al. 2006
) brings into light this exact conundrum in the plant world. The authors demonstrate a trade-off between fertility and pathogen defense, depending on levels of expression of the xa13 gene.
| Use of natural variation to clone disease resistance genes |
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| XA13 is essential during pollen development |
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| Rice disease-resistance genes |
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