Genetic diversity of pea (Pisum sativum L.) genotypes differing in leaf type using SNP markers

Abstract A collection of 46 pea ( Pisum sativum L.) accessions, mostly from Europe, were analysed for genetic diversity using the GenoPea 13.2 K SNP Array chip. Of these accessions 24 nomal-leaved and 22 semi-leafless. Principal components analysis (PCA) separated peas into two groups characterized by different leaf types, although some genotypes exceptions appeared in opposite group. Cluster confirmed groups. dendrogram showed larger distances between normal-leafed group compared to semi-leafless genotypes. Both PCA cluster show that leave types are genetically divergent. So normal-leaved an interesting resource, even if breeding goal is develop varieties.