Building and promoting a European Pyrus collection - a case study

Activity Coordinator: Marc Lateur Email

The project "Building and promoting a European Pyrus collection - a case study", submitted by the Malus/Pyrus Working Group for funding under the Activity Grant Scheme, was selected by the Executive Committee in December 2014

Implementation status by April 2016 (extract from ECPGR Annual Progress Report 2015)

The aim of ECoHisPy was to initiate the AEGIS European Collection of Pyrus, focusing on a sample of around 100 true-to-type historical and landraces European pear cultivars.
Partners agreed on the methodology for the selection of the most appropriate set of cultivars (identification of synonyms, SSR analysis, use of characterization and evaluation descriptors, and standard descriptions).
The SSR profiles of 141 leaf accessions from the ECoHisPy partners were analysed by Agroscope (Switzerland) using 16 SSR markers and 8 reference cultivars. Results of the analysis were compiled and merged with those of other studies from Germany, Switzerland and UK; the complete data set covers a total of 220 pear accessions that have at least 9 SSR markers in common.
The agreed C&E descriptors, including 10 priority characterization traits and 19 evaluation traits, were used during the 2015 harvest period by all partners for their most original cultivars.
A first analysis of SSR data was carried out to identify putative synonyms, homonyms and original material; this information played a key role for the final definition of the most original and historical European pear cultivars defined as “Most Appropriate Accessions (MAAs)” that will be proposed to be included in the AEGIS European Collection and will finally be described by each partner on common bases.

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