Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Evaluation of Tomato Genetic Resources for the Development of Resistance Breeding Lines against Late Blight

잎마름역병 저항성 육종을 위한 토마토 유전자원의 저항성 평가

  • Kim, Byung-Sup (Department of Plant Science, Gangneung-Wonju National University)
  • 김병섭 (강릉원주대학교 식물생명과학과)
  • Received : 2012.01.02
  • Accepted : 2012.03.02
  • Published : 2012.04.30
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Abstract

Occurrence of tomato late blight (Phytophthora infestans) has caused significant losses in tomato yield in all over the world. Evaluation of the level of resistance in tomato gene resources for main breeding and initiation of the resistance breeding program are important for control of this disease. Resistant assay of 78 tomato cultivars/lines to late blight in pots and field experiment was carried out under controlled and natural conditions in 2009. All commercial cultivars including 'Legend' were susceptible. However, 10 lines including KNU-2, KNU-6-1, KNU-11, KNU-13, KNU-14-1 lines distributed from University of California, Riverside and L3708, $AV107-4{\times}L3708$, $07-15{\times}L3708$, $BS67{\times}L3708$ lines which have resistant gene Ph-3 and $06-9-62A{\times}06-9-62A$ were highly resistant to late blight. These highly resistant lines can be used as resources of resistance to late blight in a tomato breeding program in future.

Phytophthora infestans에 의해 발생하는 토마토 잎마름 역병은 전 세계적으로 발생하여 토마토 생산에 막대한 피해를 준다. 이 병의 방제를 위하여 저항성 품종의 이용은 매우 중요하다. 저항성 품종육종의 초기 및 본 육종에서 토마토 유전자원의 저항성 평가는 매우 중요하다. 본 연구는 2009년에 유묘 및 성체식물을 대상으로 78종의 토마토 시판 품종과 계통에 대한 잎마름역병 저항성을 검정하였다. Legend를 포함한 모든 시판 품종은 감수성이지만, California 대학에서 분양 받은 KNU-2, KNU-6-1, KNU-11, KNU-13, KNU-14-1 계통과 저항성 유전자 Ph-3를 가지고 있는 L3708, $AV107-4{\times}L3708$, $07-15{\times}L3708$, $BS67{\times}L3708$ 및 $06-9-62A{\times}06-9-62A$ 계통은 고도의 저항성인 것으로 나타났다. 본 연구에서 선발된 토마토 잎마름역병에 고도의 저항성을 가지는 10계통은 저항성 품종육종을 위한 유용한 자원으로 활용될 수 있다.

Keywords

References

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  2. Development of the gene-based SCARs for the Ph-3 locus, which confers late blight resistance in tomato vol.164, 2013, https://doi.org/10.1016/j.scienta.2013.08.013
  3. Improvement of resistance to late blight in hybrid tomato vol.55, pp.2, 2014, https://doi.org/10.1007/s13580-014-0046-1