Identification of Agronomic Traits and Evaluation of Disease Resistance in 85 Ornamental and Edible Type Tomato Fruits
In order to screen tomato(Solanum lycopersicum L.)germplasms with good comprehensive traits,85 tomato germplasm materials were collected,and phenotypic genetic diversity of 7 main agronomic traits were analyzed.Five resistance genes(Ty-1、Ty-2、Ty-3、Tm-2a、Ph-3)were identi-fied by molecular markers.The results showed that the genetic variation of 5 fruit agronomic traits was abundant,the coefficient of variation was between 20％and 87％,and the diversity index was between 4.13 and 4.90.Through the detection of disease resistance molecular markers,2 materials containing 3 kinds of disease resistance genes and 14 materials containing 2 kinds of disease resistance genes were successfully screened.There were obvious differences in agronomic traits and disease resistance among different tomato germplasm resources,which indicated that they had great potential of genetic variation.
ornamental and edible type tomatogermplasm resourcefruit traitmolecular markersdisease resistance identification
万方数据
维普
