The Use of Potato Haploids to Put 2x Wild Species Germplasm into a Usable Form |
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| Authors: | S. H. Janskv G. L. Yerk S. J. Peloquin |
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| Affiliation: | S. H. Jansky;, Department of Biology, University of Wisconsin–Stevens Point, Stevens Point, WI 54481 (U.S.A.) G. L. Yerk;, Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN 55108 (U.S.A.) S. J. Peloquln;, Department of Genetics and Horticulture, University of Wisconsin, Madison, WI 53706 (U.S.A.) |
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| Abstract: | An effective method of incorporating germplasm of wild 2x Solanum species into the cultivated potato is through hybridization with haploids of 4x S. tuberosum Group Tuberosum. This procedure provides for the introduction of desirable traits and genetic diversity from wild species into potato. Haploid and wild species genotypes can be evaluated for parental value based on the presence of good tuberization, desirable traits, fertility, and 2n gametes in their hybrid progeny. Haploid-wild species hybrids may be intercrossed and evaluated at the 2x level to take advantage of diploid genetic ratios. Selected 2x genotypes may then be brought to the 4x level through sexual polyploidization with 2n gametes. |
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| Keywords: | Solatium tuberosiim haploids 2n gametes wild species germplasm enhancement |
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