关键词: 茄子, 野生茄, 种间杂种, 杂种鉴定

Abstract: In order to obtain the new disease-resistance resource in eggplant, inter-specific hybridization was made with pollination between Solanum torvum and Solanum melongena inbreeding lines,‘E-8’,‘E-30’, ‘E-35’,‘E-38’. Only the inter-specific hybrid of ‘E-35’×Solanum torvum was obtained. The hybrid were identified by morphology , RAPD and GISH methods, the disease-resistance of the hybrid was tested by inoculation .The results showed that the morphological characteristic of F1 hybrid was intermediate to that of its parent , the pollen viability of F₁ hybrid was high , its seed was fertile. Not only its parent characteristic bands, but also some new characteristic bands of hybrid were observed in F₁ hybrid plant , and the chromosome of both parent (Solanum melongena ‘E-35’and Solanum torvum) were determined in F₁ hybrid , its NO. of chromosome was about 2n = 24，those showed that the F1 hybrid was a real inter-specific hybrid. The hybrid showed high bacterial wilt resistance by inoculated to race 1 of bacterial wilt and in the field, the resistance to bacterial wilt may be controlled by two dominance genes. So the inter-specific hybrid can be used as a new resource with resistance to bacterial wilt for eggplant breeding .

Key words: eggplant, Solanum torvum, inter-specific hybrid, hybrid identification