FLOWER RESEARCH JOURNAL (화훼연구)

The Korean Society for Floricultural Science (한국화훼학회)
권호 표지

Identification of Enhanced Resistance to Abiotic Stress Induced by Methyl Viologen in Progeny from a Cross of Transgenic Lines of Petunia

  • Lee, Su Young (National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Lee, Jung Lim (National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Kim, Seung Tae (National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Lee, Eun Kyung (National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Kwon, O Hyeon (National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Kim, Won Hee (National Institute of Horticultural & Herbal Science, Rural Development Administration)
  • Received : 2011.08.25
  • Accepted : 2011.11.08
  • Published : 2011.12.30
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Abstract

This study was conducted to investigate the resistance to abiotic stress in the progeny obtained by a cross between NDPK2-transgenic line (NDPK2-7-1) and MnSOD (SOD2) transgenic line (SOD2-2-1-1-35) to develop transgenic petunia highly resistant to environmental stress. At the treatment of 100 and $200{\mu}M$ methyl viologene (MV), the progeny was significantly less damaged than its parental plants (SOD2- or NDPK2-transgenic lines) as well as non-transgenic plants, implying its resistance to oxidative stress enhanced than SOD2- or NDPK2-transgenic plants. In an expression of 11 quantitative traits, the progeny remained similar to control plants, although it infrequently displayed slightly longer or wider than non-transgenic control plants. In the color and shape of flowers, there was no significant difference between the progeny and its parents or non-transgenic control.

본 연구는 환경스트레스 저항성이 증진된 페튜니아를 개발하기 위하여 NDPK2유전자 도입 형질전환 계통 NDPK2-7-1와 SOD2 유전자 도입 형질전환 계통 SOD2-2-1-1-35간의 교잡에 의해 획득된 후대들의 비생물적 스트레스 저항성을 조사하기 위해 수행되었다. 비생물적 스트레스 유발원인 메틸바이올로젠(methyl viologen, MV) $100{\mu}M$과 $200{\mu}M$ 처리에서 교잡후대들은 그들의 교배모본 SOD2 유전자나 NDPK2 유전자가 단독으로 도입된 형질전환 계통이나 비형질전환체 보다 메틸바이올로젠에 의한 피해를 적게 받았다. 이는 SOD2 유전자나 NDPK2 유전자가 단독으로 도입된 형질전환 계통간 교잡에 의해 획득된 후대들이 그들의 교배모본 (SOD2 유전자나 NDPK2 유전자가 단독으로 도입된 형질전환 계통)이나 비형질전환체 보다 산화적 스트레스에 대한 저항성이 증진되었음을 증명해 준다고 할 수 있다. 이들 교잡후대들은 초장 등 11종류의 양적형질의 특성이 비형질전환체에 비해 약간 길거나 짧긴 하였지만 비형질전환체와 거의 유사하였으며, 꽃 색갈이나 모양 또한 그들의 교배모본 (SOD2 유전자나 NDPK2 유전자가 단독으로 도입된 형질전환 계통)이나 비형질전환체와 차이가 없었다.

Keywords

References

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