Gap Analysis

Andy Jarvis, Julián Ramírez, Nora Castañeda, Robert Hijmans and Jacob Van Etten

© Neil Palmer (CIAT)

Biodiversidad y cultivos

Diversidad

Credit: J. Cherfas/IPGRI Credit: INIAP

Credit: Cary Fowler/GCDTCredit: CIAT

Credit: ICRISAT

Credit: Cavagnaro

Usos - Mejoramiento

Credit: .Bambo./FLICKR

PapaSolanum tuberosum

Solanum bulbocastanum

Resistencia a Gota (Phythophtora infestans)

X

Bancos de Germoplasma

Credit: Caperton27/FLICKR

Credit: CIATCredit: Global Crop Diversity Trust

Credit: IRRI

CGIAR

The Svalbard Global Seed Vault

Credit: Kitsune Noir/FLICKR

Why Gap Analysis?

• CG collections suffer from both over- and under- collecting

• Duplications increase costs

• But also significant gaps in the collections

Why Gap Analysis?

• Tool to assess crop genetic and geographical diversity.

• Allows detecting non-fulfilled species collections as well as defining which species should be collected and where these collections should be focused.

• Assesses the current extent at which the ex situ conservation system is correctly holding the genetic diversity of a particular genepool.

The Gap Analysis pathway

Taxonomy review Data gathering Georeferentiaton

Environmental

data gathering

Gap Analysis

process

Final

recommendations

Geographic dimension

Environmental dimensionTaxonomic dimension

The Gap Analysis process

Proxy for:

• Range of traits

Proxy for:

• Diversity

• Possibly biotic traits

Proxy for:

• Abiotic traits

• Identifying gaps

Taxa priorization

High P

riorit

y Tax

a

Med

ium P

riorit

y Tax

a

Low P

riorit

y Tax

a

No co

nser

vatio

n re

quire

d

The Rugosi and Acutifolii case

• Section Acutifolii– P. acutifolius– P. acutifolius var. acutifolius– P. acutifolius var. latifolius– P. acutifolius var. tenuifolius– P. parvifolius

• Section Rugosi– P. angustissimus– P. filiformis– P. carteri

Debouck, D. (2009). Cahiers de Phaséologie – section Rugosi. Retrieved November 3, 2009, from http://isa.ciat.cgiar.org/urg/

Debouck, D. (2009). Cahiers de Phaséologie – section Acutifolii. Retrieved November 3, 2009, from http://isa.ciat.cgiar.org/urg/

Prioritization results

High Priority Taxa (HPT)

• Where to find the most?

High Priority Taxa (HPT)

P. carteri

Section: Rugosi

P. acutifolius var. latifolius

Section: Acutifolii

• HPT for Rugosi and Acutifolii• HPT and Protected Areas

High Priority Taxa (HPT)

• HPT and Protected Areas

Are there analyses for other crops?

13 crop genepools analyzed, 7 analyses in the pipeline Recommendations on which taxa are priority to conserve Maps indicating what and where to collect Results publicly available at: http://gisweb.ciat.cgiar.org/GapAnalysis/

Taxon-level and genepool level priorities

Methodology and code

MethodologyCode

Priorities list per genepool

Georeferenced datasets

Gap Analys is

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Gracias!

n.p.castaneda@cgiar.org

Presentación disponible en:http://www.slideshare.net/ciatdapa

http://www.slideshare.net/laguanegna