Whole genome resequencing of four Italian sweet pepper landraces

Sweet pepper (Capsicum annuum L.) is a high value crop and one of the most widely grown vegetables belonging to the Solanaceae family. In addition to commercial varieties and F1 hybrids, a multitude of landraces are grown, whose genetic combination is the result of hundreds of years of random, environmental, and farmer selection. High genetic diversity exists in the landrace gene pool which however has scarcely been studied, thus bounding their cultivation.Four pepper inbred lines representative of as many fruit types were re-sequenced: big sized blocky with sunken apex (Quadrato) and protruding apex or heart shaped (Cuneo), elongated (Corno) and smaller sized sub-spherical (Tumaticot). Each genomic sequence was obtained through Illumina platform at coverage ranging from 39 to 44X, and reconstructed at a chromosome scale.