Abstract
Germplasm collections represent a reservoir of traits and genes that might be used in breeding programs to cope with the evolving market demand. Some old pear accessions still cultivated in the Apennine Mountains in Italy possess a red flesh fruit. This paper reports the molecular analysis of 33 red-fleshed pear accessions, collected in different areas of the Emilia-Romagna region and genotyped with 18 simple sequence repeat (SSR) markers with the aim of improving germplasm conservation strategies for old red-fleshed pears and for supporting ongoing breeding programs. The molecular profiles revealed both cases of synonymy and homonymy and only 6 unique genotypes were identified. S-genotypes were also established in order to highlight the genetic relationships among these landraces. Four of the unique genotypes have been clustered based on pomological data.
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