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KMID : 1098420120200050359
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Korean Journal of Medicinal Crop Science
2012 Volume.20 No. 5 p.359 ~ p.364
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Variation of Bolting at Cultivation of Different Regions and Molecular Characterization of FLC homologs in Angelica gigas Nakai
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Kim Young-Guk
Yeo Jun-Hwan
Ahn Tae-Jin
Han Sin-Hee
Ahn Young-Sup
Park Chung-Berm
Jang Yun-Hee
Kim Jeong-Kook
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Abstract
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This study were carried out to find bolting response of cultivation in different regions and to isolate FLC (FLOWERING LOCUS C) homologs in Angelica gigas Nakai. The mean temperature of different regions, ordering in altitude, were as follows: 100 m > 350 m > 530 m > 700 m. The largest amount of rainfall was occurred in the region of 350 m while the longest time of sunshine was occurred in the region of 100 m. The content of soil chemical properties in regions showed pH 6.2 ~ 7.4, T-N 0.17 ~ 26, organic mater 1 ~ 32 gkg-1, P2O5 151 ~ 664mgkg-1, exchangeable potassium and alcium and magnesium were 0.78 ~ 1.15, 3.9 ~ 10.0, 0.7 ~ 3.2 cmol+ kg-1. L5 line of A. gigas was occurred in bolting at all regions, but the bolting ratio was 60.0% in 700 m region with non-mulching treatment. Manchu of A. gigas was not occurred in bolting at all regions. The accumulation bolting ratio of L5 line by non-mulching was higher than that of mulching as 90.4% and 72.8% in 100 m region. The MADS-box transcription factor FLC is one of the well-known examples as a strong floral
repressor. We decided to isolate FLC homologs from A. gigas as a starting point of flowering mechanism research of this
plant. We have isolated two RT-PCR products which showed very high amino acid sequence homology to Arabidopsis FLC.
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KEYWORD
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Angelica gigas, Bolting Response, Regions, FLC Homologs
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