Application of DNA Marker to Evaluate Tomato Genetic Resoure for Ripening Inhibitor Gene and Yellow Leaf Curl Virus Resistance

Date Received: 07-06-2025

Date Published: 13-06-2025

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Ton, P., Tuyen, K., Hai, T., & Bach, N. (2025). Application of DNA Marker to Evaluate Tomato Genetic Resoure for Ripening Inhibitor Gene and Yellow Leaf Curl Virus Resistance. Vietnam Journal of Agricultural Sciences, 11(6). https://doi.org/10.31817/tckhnnvn.2013.11.6.

Application of DNA Marker to Evaluate Tomato Genetic Resoure for Ripening Inhibitor Gene and Yellow Leaf Curl Virus Resistance

Phan Huu Ton (*) , Khuc Ngoc Tuyen , Tong Van Hai , Nguyen Duc Bach

  • Tác giả liên hệ: [email protected]
  • Keywords

    Begomoviruses, DNA marker, ripening inhibitor gene, tomato

    Abstract


    In order to develop the new tomato varieties with delayed ripening and strong resistance to yellow leaf curl disease, evaluation and identification of the genetic resources bearing desirable genes play a very important role. In this study, 200 tomato accessions were evaluated for bio-agronomic characteristics, yield potential, delayed ripening ability and resistance to yellow leaf curl disease by artificial infection. Application of DNA markers was carried out to identify the resistant genes Ty1, Ty2, Ty3 and ripening inhibitor gene (rin) in 200 tomato accessions. Results indicated that seven tomato accessions carry resistance gene Ty1, 7 accessions contain Ty3 gene, of which 2 accessions carrying both Ty1 and Ty3 gene, and 6 accessions carry rin gene. Almost the accessions containing Ty1 and Ty3 were strongly resistant to the virus isolates collected from Hanoi, Bacgiang and Hungyen provines. We also found 15 accessions with slow ripening ability and long shelf life, in which 6 accessions containing ripening inhibitor gene (rin).

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