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구기자 4배체 계통의 부위별 당 및 기능성분 함량
Contents of Sugars and Functional Compounds in Plant Parts of Boxthorn Tetraploid Lines (Lycium Chinense Mill.)
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/326207
Background : Tetraploid plants are bigger in the size of fruits, leaves, stems, and roots than diploid plants due to bigger cells attributed to chromosome multiplication. The advantage of tetraploid plants includes breakdown of self-incompatibility and increase of disease resistance. This study was carried out to gain tetraploid resources for breeding of new boxthorn varieties having pest resistance, higher yield, and self-compatibility. Methods and Results : Tetraploid lines and maternal varieties used in this study were C0148-10 and C0412-1 from Cheongyang-jaerae, M0148-94 and M0148-120 from Myongan, B0148-43 and B0148-78 from Bulro, D0148-62 and D0148-72 from Cheongdae, and Y0148-2 and Y0148-24 from Youngha. Betaine content was highest as 0.7 - 1.62% in leaf, followed by 0.55 - 1.17% in fruit and 0.04 - 0.23% in root. Betaine content in plant parts of several tetraploid lines increased compared to martenal varieties, higher in fruit for 5 lines including D0148-72, B0148-78, and C0142-1, higher in leaf for 5 lines including C0148-10, C0412-1, and M0148-94, and higher in root for 7 lines including Y0148-2, M0148-94, and M0148-120. Rutin content in leaf ranged 4.0 – 388.55 ㎎% and was highest as 388.55 ㎎% in Y0148-24. Tannin content in leaf of tetraploid lines was 4.70 - 6.12%, highest as 6.12% in Y0148-2 and M0148-120, similar to the maternal varieties. Youngha of the diploid plants showed the highest tannin content of 7.08%. Total free sugar content in tetraploid lines was higher as 8.53 - 12.53% than maternal varieties. Conclusion : Betaine and rutin contents increased in several tetraploid lines and Total free sugar content in tetraploid lines was higher as 8.53 - 12.53% than maternal varieties. This shows tetraploid boxthorn lines are very useful resources in breeding new varieties.
