Abstract
Five experimental plots of 3 x 8 m containing 80 plants each, 60 ofSolarium stenotomum (12 clones) and 20 ofS. sparsipilum (unknown number of clones) interspaced at random, were established at the Granja K’ayra in Cuzco, Perú. The plantings were intended to mimic small fields of traditional farmers on low fertility soil and steep terrain. Plants of each species were distinguished from another by at least four isozyme loci and by stem pigmentation. Ninety five percent of the seedlings grown from either open-pollinated seed ofS. stenotomum orS. sparsipilum were found to be interspecific hybrids. That the majority of the open-pollinated seed were of hybrid origin suggests that gene flow between weedy and diploid cultivated species is important in generating new landraces of potatoes in the Andes.
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Rabinowitz, D., Linder, C.R., Ortega, R. et al. High levels of interspecific hybridization betweensolanum sparsipilum ands. stenotomum in experimental plots in the andes. American Potato Journal 67, 73–81 (1990). https://doi.org/10.1007/BF02990957
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DOI: https://doi.org/10.1007/BF02990957