Abstract
Clones of several diploid species capable of generating diplandroids (2n pollen) were identified by screening for the occurrence of 2n pollen. Diplandroid production was detected inSolatium bukasovi, S. canasense,S. cardiophyllum, S. chacoense, S. leptostigma, S. megistacrolobum, S. tarijense, S. tuberosum Group Phureja and Group Stenotomum. Parallel spindles at Ana II was the mechanism producing 2n pollen inS. chacoense, Group Phureja, and Group Stenotomum. The widespread distribution both taxonomically and geographically suggests a possible role for diplandroids in evolution. It also encourages exploration of a proposed breeding method in which tetraploids are generated from 2x × 2x matings.
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Paper No. 1630 of the Laboratory of Genetics. Research supported by the College of Agriculture and Life Sciences, a gift from Frito-Lay, Inc., and a grant GM 15422 from the NIH; and the International Potato Center.
DM is supported by a Predoctoral Scholarship from the Donald F. Jones Fund of Research Corporation.
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Quinn, A.A., Mok, D.W.S. & Peloquin, S.J. Distribution and significance of diplandroids among the diploid solanums. American Potato Journal 51, 16–21 (1974). https://doi.org/10.1007/BF02852024
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DOI: https://doi.org/10.1007/BF02852024