The Origin of the Cultivated Cucurbita

  title={The Origin of the Cultivated Cucurbita},
  author={T. Whitaker},
  journal={The American Naturalist},
  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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The results suggest that more intensive search and collection of C. okeechobeensis populations would likely yield genotypes that are more compatible with C. pepo, the economically most important species, and disease-resistant wild species, particularly C. foetidissima. Expand
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Using a multilocus sequencing approach, it is discovered that gummy stem blight of cucurbits is caused by three genetically distinct species: Stagonosporopsis cucurbitacearum, S. citrulli and S. caricae, which had previously been considered only a pathogen of papaya. Expand
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American Origin of the Cultivated Cucurbits. I. Evidence from the Herbals. II. Survey of Old and Recent Botanical Evidence
In the course of his investigation on the association of the cultivated cucurbits with the various Amerind cultures of the Southwest, the writer had occasion to examine most of the published work that concerns the origin of this group. Expand
An acetocarmine technic for Cucurbita.
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
  • Cucurbita. Stain. Tech
  • 1954
Mexico and Central America as the principal centers of origin of cultivated plants of the New World
  • Bull . Appl . Bot . and PI . Breed .
  • 1931
The domesticated cucurbitas. I. Gentes Herb
  • 1929
In press, An analysis of the cucurbit materials excavated from two caves near Ocampo, Tamaulipas
  • Mexico. Amer. Antiquity