Arce, A.

Begazo Oliviera, D.

Ccanto, Raul I.

Haan, Stef de

Juarez, H.

Polreich, S.

Scurrah, M.

CGSpace

Tropentag, September 17-19, 2014, Prague, Czech Republic“Bridging the gap between increasing knowledge anddecreasing resources”An Interdisciplinary Monitoring Network of Diversity Hotspots forLong-Term in-situ Conservation of Potato LandracesSeverin Polreich1, Stef De Haan1, Henry Juarez1, Alejandra Arce Indacochea1,Franklin Plasencia1, Raul Ccanto2, Maria Mayer de Scurrah2, Domingo BegazoOliviera31International Potato Center (CIP), Peru2Grupo Yanapai, Peru3CADEP-JMA, PeruAbstractCustodian farmers have been cultivating a highly diverse and nutritive potato landrace portfolioover centuries in a sustainable and balanced manner. The largest part of cultivated potato diversi-ty is not available in genebanks and custodians form a critical part for the future conservation ofPGRs. To date no strategies and methods have been promoted for long-term monitoring approa-ches that are suitable to assess the dynamics and evolutionary processes within crop genepools,which are important ecosystem services. In 2012 the International Potato Center (CIP) and part-ners have founded the initiative Chirapaq N˜an (Quechua = rainbow route), a network of diversityhotspots to monitor the world’s largest potato genepool from Colombia to Chile. The initiativefocuses on (i) improving the understanding of the dynamics of ongoing evolution and its role as anadaptive process to changing environments, to strengthen the future provision of ecosystem servicesderived from ongoing evolution, (ii) implement a communication strategy linking stakeholders atcommunity, private and national level across hotspots to foster in-situ management of PGR throughcustodian farmers, (iii) strengthening the engagement of the local youth in maintaining agrobiodi-versity as heritage that consolidates the cultural identity of local communities for the future. TheInitiative has thus far begun the monitoring effort in three selected hotspots in Peru and Boliviaand will expand by 2015 to four countries. As part of its baseline documentation the temporal-spatial management of potato fields and its relationship to risk mitigation, geographical settingand intraspecific diversity is investigated. Landrace diversity is characterised molecularly and mor-phologically following developed standard procedures for monitoring at gene, variety, species andlandscape level. Potential interactions between extreme weather events -such as frost, hail, periodsof heavy rainfall and drought- yield and diversity are explored at field level. Through yield samplingand potato diversity sampling methods which followed participatory field mapping, yield impactsfor 312 native potato fields located between 3200 and 4200 meters above sea level were quantifiedby cultivar and weather stressor types. Results from the initial baseline documentation evidencehigh levels of contemporary diversity and a complex matrix of interactions at the biophysical andsocio-ecological level.Keywords: Agrobiodiversity, Andes, characterisation, conservation, in-situ, landraces, monitoring,ongoing evolution, potatoContact Address: Severin Polreich, International Potato Center/CIM, Global Program of Genetic Resources, Ave-nida La Molina,, Lima, Peru, e-mail: s.polreich@cgiar.org

An interdisciplinary monitoring network of diversity hotspots for long-term in-situ conservation of potato landraces

https://cgspace.cgiar.org/bitstream/10568/67164/2/79022.pdf

An interdisciplinary monitoring network of diversity hotspots for long-term in-situ conservation of potato landraces

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