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利用由野生种番茄(Solanum galapagense)‘LA0317’和普通栽培种番茄(Solanum lycopersicon)‘9706’构建包含130个株系的BC2S8群体,对控制果实质量和果实形状的QTL进行分析,共检测到18个QTL,LOD值介于2.40~5.17之间,可解释8.0%~32.4%的表型变异,其中LOD值大于3的QTL有5个,贡献率超过10%的QTL有8个。与果实质量相关的QTL有5个,加性效应值均为负值。与果形指数相关的QTL有6个,与果实纵径相关的QTL有2个,与果实横径相关的QTL有5个。在分子标记SSR135、In Del_FT-77、TMS66和In Del_FT-143处均聚集了多个控制单果质量和果形的QTL,说明这些位点可能同时对多个不同的果实表型性状起作用,属于多效位点。
The BC2S8 population containing 130 lines was constructed from Solanum galapagense ’LA0317’ and Solanum lycopersicon ’9706’, and QTLs controlling fruit quality and fruit shape were analyzed. A total of 18 Among the QTLs, the LOD values ranged from 2.40 to 5.17 and explained 8.0% to 32.4% of the phenotypic variation. Among them, five QTLs with LOD values greater than 3 and 8 QTL with more than 10% contribution rate. There were 5 QTLs related to fruit quality, and the additive effects were negative. There were 6 QTLs related to fruit shape index, 2 QTLs related to fruit length and 5 QTLs related to fruit diameter. Multiple QTLs controlling fruit quality and fruit shape were clustered in molecular markers SSR135, In Del-FT-77, TMS66 and In Del-FT-143, indicating that these loci may work on a number of different phenotypic traits simultaneously, belonging to Multi-site effect.