关键词: 番茄, Solanum galapagense, 单果质量, 果实形状, QTL

Abstract: The galapagense tomato‘LA0317’was crossed with the cultivated tomato‘9706’to establish a BC2S8 population which includes 130 recombined inbred lines. Eighteen QTLs were detected associated to these fruit morphological traits in total. The LOD values of these QTLs were between 2.40 and 5.17，which can explain 8.0%–32.4% phenotypic variations. Eight QTLs can explain more than 10% variations. Among these QTLs，five QTLs were related to fruit weight and the addictive effects were all negative，six QTLs were related to fruit shape index，two QTLs were related to fruit length and five QTLs related to fruit width. In addition，several QTLs detected controlling different morphological traits were clustered at some molecular makers such as SSR135，InDel_FT-77，TMS66 and InDel_FT-143，which indicated that these pleiotropic loci may simultaneously have impacts on different fruit morphological traits.

Key words: tomato, Solanum galapagense, fruit weight, fruit shape, QTL