Distributions and collecting priorities for crop wild relatives in the...

Distributions and collecting priorities for crop wild relatives in the United States

Colin K. Khoury, Stephanie L. Greene, Karen A. Williams, & Chrystian C. Sosa

2017 National Native Seed Conference14 February 2017

Washington, D.C.

Crop wild relatives are wild and weedy cousins

Crop wild relatives are in the news

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 valuable genetic resources

Pecos sunflower (Helianthus paradoxus)Okeechobee gourd (Cucurbita okeechobeensis subsp.

okeechobeensis)

Scrub plum (Prunus geniculata)Texas wild rice (Zizania texana)

Crop wild relatives are threatened wild plants

Khoury et al. (2013) Crop Science 53(4): 1496

Inventory of crop wild relatives of the U.S.

Khoury et al. (2013) Crop Science 53(4): 1496

Determine gaps in conservation

Gap analysis

Choose species and area

Make conservation

recommendations

Model distributions

Gather occurrence data Process data

Distributions of priority CWR in the U.S.

62,000 records38,000 with coordinates

Potential distributions of priority CWR in the U.S.

Potential distributions of priority CWR in the U.S.

Potential distributions of priority CWR in the U.S.

Potential distributions of priority CWR in the U.S.

Further collecting priorities for priority CWR

State

# of CWR of high priority for further collecting

New York 87Virginia 85

Tennessee 82Texas 82

North Carolina 80West Virginia 80Pennsylvania 78

Ohio 77Illinois 75Georgia 74

New Jersey 74Indiana 73

Arkansas 72Kentucky 72Maryland 72

Massachusetts 72Missouri 72

South Carolina 72Florida 69

Alabama 68

Number of CWR of high priority for further collecting per state

Further collecting priorities for priority CWR

Distributions of wild relatives of important food crops of high priority for further collecting

Global hotspots for under-represented CWR

Castañeda-Álvarez et al. (2016) Nature Plants 2(4): 16022

The U.S. is a global hotspot for under-represented CWR

Castañeda-Álvarez et al. (2016) Nature Plants 2(4): 16022

# h

igh

prio

rity

spec

ies

prio

ritiz

ed fo

r fur

ther

col

lect

ing

Ex situ conservation and ongoing collecting

Wild potato, Arizona

Wild sunflower, Louisiana

Photo: J. Bamberg

Photo: K.A. Williams

V. macrocarpon Ait. V. oxycoccos L.

Small cranberryLarge cranberry

Complementary conservation of wild cranberry

Information available at: http://www.fs.fed.us/wildflowers/ethnobotany/cranberry/index.shtml

Photo: K.A. Williams

Framework available at: http://www.fs.fed.us/wildflowers/ethnobotany/documents/cwr/FrameworkNativeCropWildRelativesOct2014.pdf

Monongahela NF, WV

George Washington NF, VA

Cherokee NF, TN

Pisgah NF, NC

Chequamegon-Nicolet NF, WI

Superior NF, MN Ottawa NF, MI

Allegheny NF, PA

Hiawatha NF, MI

Pisgah National Forest, NC1748 m

Chequamegon - Nicolet National Forest, WIPhoto: L. Rodriguez-Bonilla, UW 490 m

Monongahela National Forest, WV1110 m

George Washington National Forest, VA976 m

Cranberry populations in U.S. National Forests

Photo: K.A. Williams Photo: K.A. Williams

Photo: K.A. Williams

Private conservation lands are important for U.S. CWR

Private conservation lands are important for U.S. CWR

Comprehensive action on U.S. crop wild relativesInformation Access for UseConservation

Strategy

Castañeda-Álvarez et al. (2016) Global conservation priorities for crop wild relatives. Nature Plants 2(4): 16022.

Khoury et al. (2013) An inventory of crop wild relatives of the United States. Crop Science 53(4): 1496.

Khoury et al. (2016) Measuring the state of conservation of crop diversity: a baseline for marking progress toward biodiversity conservation and sustainable development goals. Crop Wild Relatives project policy brief.

USFS/ARS Strategic Framework: http://www.fs.fed.us/wildflowers/ethnobotany/documents/cwr/FrameworkNativeCropWildRelativesOct2014.pdf

USFS/ARS Cranberry project: http://www.fs.fed.us/wildflowers/ethnobotany/cranberry/index.shtml

Thank you!Contacts:

Colin Khoury c.khoury@cgiar.org | Colin.Khoury@ars.usda.govStephanie Greene | Stephanie.Greene@ars.usda.giv

Karen Williams | Karen.Williams@ars.usda.gov

The preceding presentation was delivered at the

This and additional presentations available at http://nativeseed.info

2017 National Native Seed ConferenceWashington, D.C. February 13-16, 2017