The Origin of the Cultivated Cucurbita

@article{Whitaker1956TheOO,
  title={The Origin of the Cultivated Cucurbita},
  author={T. Whitaker},
  journal={The American Naturalist},
  year={1956},
  volume={90},
  pages={171 - 176}
}
  • T. Whitaker
  • Published 1956
  • Biology
  • The American Naturalist
The five cultivated species of Cucurbita (C. pepo, C. mixta, C. moscbata, C. ficifolia and C. maxima) are very much alike in their morphological characteristics, but they are for the most part cross-incompatible. They have apparently developed a sequence of sterility barriers that effectively prevent gene flow between them. In a series of interspecific matings, the five cultivated species are shown to be cross-compatible with a wild species, C. lundelliana, from southern Mexico and neighboring… Expand
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Staminate Cucurbita buds undergoing meiosis are fixed for 12–24 hours in a solution containing 3 parts of 95% alcohol, 1 part of acetocarmine to which iron acetate has been added, and a flake ofExpand
An acetocarmine technic for
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