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Population genetics of duplicated disease-defense genes, hm1 and hm2, in maize (Zea mays ssp. mays L.) and its wild ancestor (Zea mays ssp. parviglumis)



Population genetics of duplicated disease-defense genes, hm1 and hm2, in maize (Zea mays ssp. mays L.) and its wild ancestor (Zea mays ssp. parviglumis)



Genetics 162(2): 851-860



Plant defence genes are subject to nonneutral evolutionary dynamics. Here we investigate the evolutionary dynamics of the duplicated defence genes hm1 and hm2 in maize and its wild ancestor Zea mays subsp. parviglumis. Both genes confer resistance to the fungal pathogen Cochliobolus carbonum race 1, but the effectiveness of resistance differs between loci. The genes also display different population histories.

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Accession: 003889029

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PMID: 12399395



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