*4.1. Plant Material*

Seven Italian cultivated tomato accessions grown in the Campania region (Southern Italy), Corbarino (cor) landrace, and six accessions belonging to the "Vesuviano" landrace, Pollena (pol), PDS (pds), Vesuvio 2001 (ves2001), Vesuviano foglia riccia (vfr), Vesuviano pizzo (vpz), Piennolo giallo (pgl), and two wild tomato species, *S. pimpinellifolium* (LA0722, Peru) and *S. neorickii* (LA2133, Ecuador) were sampled for chloroplast isolation, DNA extraction and sequencing. Drs. M.S. Grillo and S. Grandillo from the CNR, Institute of Bioscience and BioResources, Portici, kindly provided the seeds.
