关键词: 番茄, 遗传效应, QTL 交互, 单基因遗传, 果实硬度

Abstract:

Tomato fruit firmness was investigated by using 12 introgression lines derived from the
wild tomato species Solanum pennellii LA716. First filial generation which was assigned as ILH
（Introgression line hybrid）was obtained by crossing ILs with the processing tomato M82 and ILab
（Introgression line a × Introgression line b）was gained by incomplete diallel design method. Fruit
firmness was tested by flat-plate compression. Our results showed that the QTL and their interaction for
tomato red fruit firmness were inherited as over-dominant，dominant as well as with additive effect. The
QTL interaction of Crf8 harbored by the IL 8-2-1 and the combination of IL 10-3 × IL 8-2-1（Crf10 +
Crf8）need further confirmation.

Key words: tomato, genetic effect, QTL interaction, monogenic inheritance, fruit firmness