Resistance Identification and Evaluation of Tomato Germplasm Resources to Tomato Yellow Leaf Curl Virus
MI Guoquan
CHEN Mengying
SHI Yanyan
WANG Yina
HAN Ya'nan
CHENG Zhifang
HAN Yongping
WANG Jinhua
Abstract：This study detected the resistance genes of tomato yellow leaf curl virus (TYLCV) in 86 tomato varieties by PCR amplification and identified their resistance to the viral disease in the field since it was difficult to identify the resistance of the present commercial tomato germplasms to TYLCV.The result showed that the resistance genes in tomato germplasms were mainly Ty-1/ty-1 and Ty-1/ty-1 + Ty-3a/ty-3,and the proportions of 2 types (19 and 23) in total resistant germplasms (61) were 31.15 ％ and 37.70％ respectively.Among the 25 tomato varieties which only contained Ty-1 gene,80.00％ of them performed resistance in the field.However,among the 26 tomato varieties which had both Ty-1 and Ty-3a genes,the resistance rate was 100％.It proved that the cumulative effect of resistance genes worked.Through the PCR technology to amplify the resistance genes,the disease-resistant detection accuracy was up to 81.40％.At the same time,we recommended 25 tomato varieties of resistance to TYLCV such as M-17,Dali and so on.
Keywords：TYLCVTy-1Ty-2Ty-3resistance identification
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 77-83 )