Diploid potato germplasm derived from wild and land race genetic resources |
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Authors: | Kazuo Watanabe Matilde Orrillo Masaru Iwanaga Rodomiro Ortiz Rosanna Freyre Simon Perez |
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Institution: | 1. The International Potato Center, Apartado, 1558, Lima, Peru
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Abstract: | Diploid cultivated species, haploids derived from tetraploid cultivars, and their wildSolanum relatives were used to generate various diploid potato genetic stocks. These stocks have significant value in potato breeding because: 1) genetic diversity in the potato population can be kept variable with the diploid germplasm which confers genetic variation from wild and cultivated species; 2) crossability of this diploid germplasm is facilitated by the function of 2n gametes; and 3) high levels of pest resistances originating from the process of introgression of the wild and cultivated genetic resources can be used to improve the tetraploid cultivated potato genepool. |
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