Distributions, conservation status, and abiotic stress tolerance potential of wild cucurbits (Cucurbita L.)

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dc.creatorKhoury, Colin K.
dc.creatorCarver, Daniel
dc.creatorKates, Heather R.
dc.creatorAchicanoy Estrella, Harold Armando
dc.creatorZonneveld, Maarten van
dc.creatorThomas, Evert
dc.creatorHeinitz, Claire
dc.creatorJarret, Robert L.
dc.creatorLabate, Joanne A.
dc.creatorReitsma, Kathy
dc.creatorNabhan, Gary P.
dc.creatorGreene, Stephanie L.
dc.date2020-05
dc.date2019-12-11T15:10:46Z
dc.date2019-12-11T15:10:46Z
dc.date.accessioned2026-06-27T13:31:30Z
dc.descriptionCrop wild relatives are valuable genetic resources for crop improvement. Knowledge gaps, including with regard to taxonomy, distributions, and characterization for traits of interest constrain their use in plant breeding. These deficiencies also affect conservation planning, both with regard to in situ habitat protection, and further collection of novel diversity for ex situ maintenance. Here we model the potential ranges of all 16 known wild cucurbit taxa (Cucurbita L.), use ecogeographic information to infer their potential adaptations to abiotic stresses, and assess their ex situ and in situ conservation status. The taxa occur from the central USA to Central America, plus two South American species. Predicted taxon richness was highest in central Mexico and in the western borderlands between Mexico and the USA. We find substantial ecogeographic variation both across taxa and among populations within taxa, with regard to low temperatures, high and low precipitation, and other adaptations of potential interest for crop breeding. We categorize 13 of the taxa medium priority for further conservation as a combination of the ex situ and in situ assessments, two low priority, and one sufficiently conserved. Further action across the distributions of the taxa, with emphasis on taxonomic richness hotspots, is needed to comprehensively conserve wild Cucurbita populations.
dc.identifierhttps://hdl.handle.net/10568/106113
dc.identifier.urihttp://hdl.handle.net/123456789/62101
dc.languageen
dc.publisherWiley
dc.rightsOpen Access
dc.sourceKhoury, Colin K. ; Carver, Daniel; Kates, Heather R.; Achicanoy, Harold A.; Zonneveld, Maarten van; Thomas, Evert; Heinitz, Claire; Jarret, Robert; Labate, Joanne A.; Reitsma, Kathy; Nabhan, Gary P. & Greene, Stephanie L. (2020).Distributions, conservation status, and abiotic stress tolerance potential of wild cucurbits (Cucurbita L.). Plant People Planet 2(3) p. 269-283. ISSN: 2572-2611
dc.subjectcrop wild
dc.subjectcrop improvement
dc.subjectplant breeding
dc.subjectconservation
dc.subjecttaxonomy
dc.subjectex-situ conservation
dc.subjectabiotic stress
dc.subjecttolerance
dc.titleDistributions, conservation status, and abiotic stress tolerance potential of wild cucurbits (Cucurbita L.)
dc.typeJournal Article

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