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옥수수 한발 내성에 관한 유전적 다양성 조사 KCI 등재

The Study of Genetic Diversity for Drought Tolerance in Maize

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  • URLhttps://db.koreascholar.com/Article/Detail/321618
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한국환경생물학회 (Korean Society Of Environmental Biology)
초록

Drought is one of important environmental stress for plant. Drought has deleterious effect to plant growth including maize (Zea mays L.) such as vegetative and/or reproductive growth, root extension, photosynthesis efficiency, flowering, anthesis-silking interval (ASI), fertilization, and grain filling. In this study, we screened drought tolerant maize in 21 cultivars from different sources, sixteen NAM parent lines (B73, CML103, CML228, CML247, CML277, CML322, CML333, CML69, Ki11, Ki3, Ky21, M37W, Mo18w, NC350, Oh43 and Tx303), four Korean hybrids (Cheongdaok, Gangdaok, Kwangpyeongok and Pyeonganok) and one Southeast Asian genotype (DK9955). Drought stress (DS) index was evaluated with leaf rolling score at seedling stage and ASI at silking date. The leaf rolling scoring of CML228, DK9955 and Ki11 were determined 1.28, 1.85, 1.86, respectively. However, M37W, Kwangpyeongok, B73 and NC350 were determined over the 3. ASI analysis revealed that CML228, CML103, Cheongdaok, NC350, B73, CML322, Kwangpyeongok and Ki11 are represented less than 5 days under DS and less than 3 days of difference between DS and well-watered (WW), but CML69, Ki3, Pyeonganok, M37W, Mo18w and Gangdaok were represented more than 10 days under DS and more than 8 days of difference between DS and WW. Multi-Dimensional Scaling (MDS) analysis determined CML228, Ki11, and CML322 were regarded as drought tolerance cultivars. Eventually, Ki11 showed genetic similarity with Korean cultivars by QTL analysis and MDS analysis. Ki11 has a potential for development of drought tolerance maize with Korean cultivars.

저자
  • 김효철(동국대학교 생명과학과) | Hyo Chul Kim
  • 이용호(고려대학교 오정에코리질리언스연구소) | Yong Ho Lee
  • 김경희(동국대학교 생명과학과) | Kyung-Hee Kim
  • 신승호(동국대학교 생명과학과) | Seungho Shin
  • 송기태(동국대학교 생명과학과) | Kitae Song
  • 문준철(강원대학교 농업생명과학연구원) | Jun-Cheol Moon
  • 이병무(동국대학교 생명과학과) | Byung-Moo Lee Corresponding author
  • 김재윤(고려대학교 생명과학대학 생명공학부) | Jae Yoon Kim Corresponding author