Heritage peach (Prunus persica L. Batsch) varieties of Emilia-Romagna, Italy’s leading peach-producing region, are largely marked by melting, juicy, aromatic white-fleshed fruit of short shelf-life and susceptibility to bruising. While these varieties were rapidly replaced beginning in the 1950s by yellow-fleshed peaches of greater handling resistance from US breeding programmes, the Fruit Research Unit of Forlí of the Agricultural Research Council has begun an effort to safeguard and characterise Emilia-Romagna’s heritage varieties. The program has screened 26 local heritage accessions using a set of 16 highly polymorphic microsatellite (simple sequence repeat; SSR) markers to assess genetic diversity, to elucidate inter-relationships, and to resolve any cases of homonymy; seven international peach cultivars have been included to standardise allele scoring. This resulted in 19 unique molecular profiles among the heritage accessions, and a relatively high mean observed heterozygosity of 0.49 for a germplasm pool of a restricted region, an indicator of potential genetic diversity. The main morphological features of the heritage peaches are reported and potential benefits for breeding programs discussed.
|Autori:||Giovannini, D.;Dettori, M.T.;Leone, A.;Liverani, A.;Sirri, S.;Tellarini, S.;Verde, I.|
|Data di pubblicazione:||2012|
|Titolo:||Assessment of genetic variability in Italian heritage peach resources from Emilia-Romagna using microsatellite markers|
|Rivista:||JOURNAL OF HORTICULTURAL SCIENCE AND BIOTECHNOLOGY|
|Appare nelle tipologie:||1.1 Articolo in rivista|