Khoury CK (2019) “Crop Wild Relatives of North America: The Way Forward for Conservation and Use” Crop Wild Relatives of the Desert Borderlands: A Celebration of Diversity and a Call to Action, 13-15 January 2019, Tucson, AZ, USA.

1. Crop Wild Relatives of North America:
The Ways Forward for Conservation and Use
Colin Khoury
Crop Wild Relatives of the Desert Borderlands: A Celebration of Diversity and a Call to Action
14 January 2018
University of Arizona
Tucson, AZ, USA

2. Crop wild relatives (CWR) are the wild cousins

3. Western corn rootworm resistance from
eastern gama grass (Tripsacum dactyloides)
Salinity tolerance from Pecos sunflower
(Helianthus paradoxus)
Khoury et al. (2013) Crop Science 53(4): 1496
Eastern filbert blight resistance from
American filbert (Corylus americana)
Rootstock from northern California
walnut (Juglans hindsii)
Crop wild relatives are useful

4. Pecos sunflower (Helianthus paradoxus)
Okeechobee gourd (Cucurbita okeechobeensis subsp.
okeechobeensis)
Scrub plum (Prunus geniculata)Texas wild rice (Zizania texana)
Crop wild relatives are threatened
Khoury et al. (2013) Crop Science 53(4): 1496

5. Greene et al. (eds.) (2018) North American Crop Wild Relatives, Volume 1: Conservation Strategies. Springer International Publishing AG, doi: 10.1007/978-3-319-95101-0
Greene et al. (eds.) (2019) North American Crop Wild Relatives, Volume 2: Important Species. Springer International Publishing AG, doi: 10.1007/978-3-319-97121-6
North American Crop Wild Relatives (2018, 2019)

6. Potential distributions of crop wild relatives
Marek L (2019) “Crop wild relatives of sunflower in North America” In: Greene et al. (eds.) North American Crop Wild Relatives, Volume 2: Important Species. Springer International
Publishing AG, doi: 10.1007/978-3-319-97121-6

7. Overlapping distributions of crop wild relatives
Greene et al. (2018) “Wild plant genetic resources in North America: an overview”. In: Greene et al. (eds.) North American Crop Wild Relatives, Volume 1:
Conservation Strategies. Springer International Publishing AG, doi: 10.1007/978-3-319-95101-0

8. Conservation assessments for threatened species
Pecos sunflower (Helianthus paradoxus Heiser) at Blue Hole Cienega, Santa Rosa, New Mexico. Pecos sunflower is a source of salt tolerance for cultivated
sunflower, and is listed threatened under the Endangered Species Act and globally imperiled in NatureServe (Khoury et al. 2013). Photo: Laura Marek.

9. Photo: K. WilliamsWilliams and Greene (2018)

10. Helianthus pumilus, Wyoming. Photo: L. Marek

11. Photo: K. Williams

12. Photo: N. Palmer, CIAT

13. Mount Hood National Forest, OR
Chequamegon-Nicolet National Forest, WIGifford Pinochet National Forest, WA
Monongahela National Forest, WV
Candidates for in situ reserves for wild cranberries
Photo: S. White

14. Distributions of CWR and U.S. public genebanks

15. Distributions of CWR, genebanks, and botanic gardens
Moreau T and Novy A (2018) “Public Education and Outreach Opportunities for Crop Wild Relatives in North America”. In: Greene et al. (eds.) North
American Crop Wild Relatives, Volume 1: Conservation Strategies. Springer International Publishing AG, doi: 10.1007/978-3-319-95101-0

17. Increasing use, creating markets
https://www.slowfoodusa.org/files/files/conservation-you-can-taste.pdf
https://www.ediblemanhattan.com/foodshed-2/food-forever-crop-trust
http://www.thelexicon.org/rediscovered/

18. Moreau T and Novy A (2018) “Public Education and Outreach Opportunities for Crop Wild Relatives in North America”. In: Greene et al. (eds.) North
American Crop Wild Relatives, Volume 1: Conservation Strategies. Springer International Publishing AG, doi: 10.1007/978-3-319-95101-0
Public awareness raising about crop wild relatives

19. A Road Map for North America’s useful wild plants
1. understand and document North America’s useful
wild plants
2. collect and conserve their diversity
3. make their diversity accessible for consumption,
research, and education
4. protect threatened species in their natural habitats
5. raise public awareness of their value and the threats
to their persistence

20. Crop Wild Relatives of the Desert Borderlands: A
Celebration of Diversity and a Call to Action
January 13-15, 2019
https://www.garynabhan.com/crop-wild-relatives-of-the-desert-borderlands/
Photo: Native Seeds/SEARCH

21. Celebrating Crop Diversity:
Connecting Agriculture, Public Gardens, and Science
April 2-4, 2019
World Food Prize Foundation
Des Moines
Focus on enhancing
collaborations on crop wild
relatives and on informal food
and ag education
https://www.publicgardens.org/professional-development/2019-symposia/celebrating-crop-diversity

22. Khoury and Nabhan (2019) Conservation and Use of Crop Wild Relatives in Arizona. Southwest Center, University of
Arizona, Tucson, Arizona.
Greene et al. (2018) North American Crop Wild Relatives, Volume 1: Conservation Strategies. Springer International
Publishing AG, doi: 10.1007/978-3-319-95101-0.
Greene et al. (2018) North American Crop Wild Relatives, Volume 2: Important Species. Springer International Publishing
AG, doi: 10.1007/978-3-319-97121-6.
Khoury et al. (2013) An inventory of crop wild relatives of the United States. Crop Science 53(4): 1496.
Thank you!
Colin Khoury – c.khoury@cigar.org
Wild tepary bean (Phaseolus acutifolius A. Gray). Photo: Colin KhouryChiltepin (Capsicum annuum var. glabriusculum (Dunal) Heiser & Pickersgill).
Photo: Gary Nabhan.