Research in Plant Disease 2014;20(4):253-258.
Published online December 15, 2014.

토마토 유전자원의 Ralstonia solanacearum에 의한 풋마름병 저항성 평가

정은주1 · 주해진2 · 최수연2 · 이승엽2 · 정용훈2 · 이명환2 · 공현기2 · 이선우1,2*
1동아대학교 의생명과학과, 2동아대학교 응용생명과학과
 
Resistance Evaluation of Tomato Germplasm against Bacterial Wilt by Ralstonia solanacearum
Eun Joo Jung1, Hae Jin Joo2, Soo Yeon Choi2, Seung Yeup Lee2, Yong Hoon Jung2, Myung Hwan Lee2, Hyun Gi Kong2 and Seon-Woo Lee1,2*
1Department of Medical Bioscience, Dong-A University, Busan 604-714, Korea
2Department of Applied Bioscience, Dong-A University, Busan 604-714, Korea
Correspondence:  <p>Seon-Woo Lee</p><p>Tel : +82-,

Seon-Woo Lee

Tel : +82-51-200-7551
Fax: +82-51-200-7505
E-mail: seonlee@dau.ac.kr

Received: August 07, 2014   Revised: October 10, 2014   Accepted: November 10, 2014
Abstract

This study was conducted to evaluate tomato plant resistance against bacterial wilt by Ralstonia solanacearum using tomato cultivars or tomato breeding lines maintained in RDA-Genebank of Rural Development Administration and to select resistant tomato lines for breeding purpose. We evaluated the disease responses of a total of 13 cultivars and 39 breeding lines from RDA-Genebank using R. solanacearum SL341 strain, which is a representative strain in Korea. Tomato cultivar Hawaii 7996 and Moneymaker were used as a resistant control plant and a susceptible control plant, respectively. A total of 32 cultivars were susceptible and 10 cultivars showed various disease response suggesting resistant phenotype segregation in the lines. Five commercial cultivars and 5 breeding lines exhibited strong resistance to bacterial wilt by the SL341 strain. These 5 breeding lines might be used for further study of plant defense response against bacterial wilt and cloning of the resistance gene from tomato plants. Ultimately, the selected lines could be used for tomato breeding to generate bacterial wilt resistant tomato plants.

Key Words: Bacterial wilt, Resistance evaluation, Solanum lycopersicum, Tomato lines


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