Traditional tomatoes conserved in Spanish germplasm banks represent a valuable yet underexploited genetic resource. Shaped by centuries of genetic selection carried out by the traditional farmers, these materials usually show high fruit quality and wide environmental adaptation, but many remain insufficiently characterized. In this study, 132 tomato accessions representing 11 varietal types from the BAGERIM germplasm bank (IMIDA, Murcia) were phenotypically characterized and genotyped using the SolCAP Illumina 7 K SNP array. High phenotypic diversity was observed, mainly driven by major fruit traits like shape or number of locules. Cherry, Pera and Pimiento tomato types were clearly differentiated, while flattened and multiloculated types formed an indistinguishable mixture. Genetic analyses identified 32 accessions (24 %) as derived from modern cultivars, including eight Cherry accessions showing admixture with Solanum pimpinellifolium and 24 accessions clustering with modern varieties and carrying one to five resistance genes introgressed from wild tomato species. The remaining 100 accessions, representing the ‘true’ traditional tomato collection, showed a low genetic diversity -in terms of polymorphic loci- and partial population structure, with distinct clusters for Pimiento, Muchamiel, Pera and Cherry types, and a diffuse group comprising all the other flattened and multiloculated accessions. Finally, the multipurpose core collection CC31, representing 31 % of the traditional collection, was stablished using the Core Hunter 3 software by integrating phenotype and genotype data to optimise conservation and facilitate further evaluations. This work delivers a comprehensive characterization of the BAGERIM tomato collection, providing a solid basis for future research and breeding programs aimed at valorising Spanish tomato varieties and facilitating their transfer to farmers.
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号