Crop Wild Relatives of the USA: Progress Update

2013_6 Colin Khoury

Strategy Flowchart

source: adapted from Maxted N. various publications

Inventory of CWR of the US

Khoury C K, Greene S, Wiersema J, Maxted N, Jarvis A, and Struik P (2013) An Inventory of Crop Wild Relatives of the United States. Crop Sci. 53(4): 1496. doi: 10.2135/cropsci2012.10.0585. Available online at:

https://www.crops.org/publications/cs/articles/53/4/1496

Inventory media coverage

2256 taxa of 176 priority genera occur in the USA

821 taxa of 69 Priority 1 genera related to 63 crops

285 taxa of 30 genera 1A (closely related native taxa)

536 taxa of 57 genera 1B (distantly related, non-native)

Priority 2 genera- 1435 taxa from 107 genera

note this is a massive undertaking- global project 29 gps- 485 taxa; 90 gps- >1000 taxa

Taxonomic Priorities for the US

Rubus hawaiensis source: luirig.altervista.org

Gap Analysis Methodology

Determine gapsModel

distributions

Gather taxonomic data

Gather occurrence data

Make conservation recommendations

Georeferencing

Global project occurrence data

Online data, genebanks, herbaria, researchers and experts

Herbarium visits- 15,713 records digitized from photos taken at NY, PH, US, MO, CAS, UC, WAG, CUVC, R, RB, MA, COI, RBGE, LISU, LISC, LISI, BM, RBGE, P,  L, K, VIR.

Data collected by genus- 194 genera in total, including 18 specific only to US priorities

Data cleaning and processing

Taxonomic verifications- TNRS, TaxStand, final check by hand

Coordinate verification and georeferencing- 321,000 records successful.

Database- 5.4 million records, including >3 million records with “good” coordinates

Occurrence data- global dataset

Gap analysis: methodology

Ramírez-Villegas J, Khoury C, Jarvis A, Debouck DG, and Guarino L (2010). A Gap Analysis Methodology for Collecting Crop Genepools: a Case Study with Phaseolus Bean.

PLoS ONE 5(10): e13497

Gap analysis: dimensions

Taxonomic

EnvironmentalGeographic

Gap Analysis: US results for 29 genepools

Gap analysis: expert evaluation

Occurrence data (P1 genera)

Preliminary gaps

Preliminary gaps

Preliminary gaps

Preliminary gaps

Preliminary gaps

Gap analysis: methodological improvements

Gather more occurrence data for P1As- GBIF extras

run code again for P1As

Develop methodology for in situ conservation analysis and perform analysis

expert evaluation(?)

present at CSSA conference, November 2013

publish results

Next Steps

Web-based map tool for visualizing species distributions and ex situ and in situ gaps

National Inventory of CWR of the USA (completed)- need to incorporate into GRIN

Gap analysis publication(s)

Contribution to new accessions conserved, management plans for conservation of CWR in protected areas

Expected Products

Helianthus exilis source: Greg Baute

Climate change impacts

2-3 strategic taxa- one sunflower relative, threatened and usefulone to two wild cranberries

advanced modeling methods-individually chosen environmental variables

for book chapter, but in preparation for further work/publications

Climate change impacts

current

2050

Vaccinium oxycoccos

http://cwroftheus.wordpress.com/

www.cwrdiversity.org

Colin Khoury c.khoury@cgiar.org

Stephanie Greene Stephanie.Greene@ars.usda.gov

John Wiersema John.Wiersema@ars.usda.gov

Thank You!

Lactuca serriola source C Khoury