한국작물학회:학술대회논문집 (Proceedings of the Korean Society of Crop Science Conference)
- 한국작물학회 2017년도 9th Asian Crop Science Association conference
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- Pages.72-72
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- 2017
Agronomic characteristics of stay-green mutant derived from an early-maturing rice variety 'Pyeongwon'
- Won, Yong-Jae (Department of Central Area Crop Science, NICS, RDA) ;
- Ji, Hyeon-So (Department of Agricultural Biotechnology, NIAS, RDA) ;
- Ahn, Eok-Keun (Department of Central Area Crop Science, NICS, RDA) ;
- Lee, Jeong-Heui (Department of Central Area Crop Science, NICS, RDA) ;
- Jung, Kuk-Hyun (Department of Central Area Crop Science, NICS, RDA) ;
- Lee, Sang-Bok (Department of Central Area Crop Science, NICS, RDA) ;
- Hong, Ha-Cheol (Department of Central Area Crop Science, NICS, RDA) ;
- Hyun, Ung-Jo (Department of Central Area Crop Science, NICS, RDA) ;
- Ha, Woon-Goo (Department of Central Area Crop Science, NICS, RDA) ;
- Kim, Myeong-Ki (Department of Central Area Crop Science, NICS, RDA) ;
- Kim, Byeong-Ju (Department of Central Area Crop Science, NICS, RDA)
- 발행 : 2017.06.04
초록
We found a new stay-green mutant from 'Pyeongwon' which is an early-maturing rice variety in Korea. The mutant showed green leaves after grain ripening period and it maintained higher SPAD value than wild type rice plant and original variety 'Pyeongwon'. The stay-green trait in rice, three genes have been identified up to date. The non-yellow coloring1 (NYC1) gene encodes a chloroplast-localized short-chain dehydrogenase/reductase (SDR) with three transmembrane domains. The non-yellow coloring3 (NYC3) gene encodes a plastid-localizing alpha/beta hydrolase-fold family protein with an esterase/lipase motif. The Sgr gene encodes a novel chloroplast protein and regulates the destabilization of the light-harvesting chlorophyll binding protein (LHCP) complexes of the thylakoid membranes, which is a prerequisite event for the degradation of chlorophylls and LHCPs during senescence. After sequencing the PCR products, we found a single nucleotide variation(