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Morphological characteristics, chemical and genetic diversity of kenaf (Hibiscus cannabinus L.) genotypes
J Plant Biotechnol 2017;44:416-430
Published online December 31, 2017
© 2017 The Korean Society for Plant Biotechnology.

Jaihyunk Ryu1・Soon-Jae Kwon1・Dong-Gun Kim1・Min-Kyu Lee1・Jung Min Kim1・Yeong Deuk Jo1・Sang Hoon Kim1・Sang Wook Jeong1,2・Kyung-Yun Kang1,3・Se Won Kim1・Jin-Baek Kim1・Si-Yong Kang1

1Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongup, Jeonbuk 56212, Korea
2Jangheung Research Institute for Mushroom Industry, Jangheung 59338, Korea
3Suncheon Research Center for Natural Medicines, Suncheon, Republic of Korea
Correspondence to: S.-J. Kwon (⊠), S.-Y. Kang (⊠)
Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongup, Jeonbuk 56212, Korea
E-mail: soonjaekwon@kaeri.re.kr, sykang@kaeri.re.kr
Received October 16, 2017; Revised November 9, 2017; Accepted November 9, 2017.
cc This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The kenaf plant is used widely as food and in traditional folk medicine. This study evaluated the morphological characteristics, functional compounds, and genetic diversity of 32 kenaf cultivars from a worldwide collection. We found significant differences in the functional compounds of leaves from all cultivars, including differences in levels of chlorogenic acid isomer (CAI), chlorogenic acid (CA), kaempferol glucosyl rhamnoside isomer (KGRI), kaempferol rhamnosyl xyloside (KRX), kaemperitrin (KAPT) and total phenols (TPC). The highest TPC, KAPT, CA, and KRX contents were observed in the C22 cultivars. A significant correlation was observed between flowering time and DM yield, seed yield, and four phenolic compounds (KGRI, KRX, CAI, and TPC) (P < 0.01). To assess genetic diversity, we used 80 simple sequence repeats (SSR) primer sets and identified 225 polymorphic loci in the kenaf cultivars. The polymorphism information content and genetic diversity values ranged from 0.11 to 0.79 and 12 to 0.83, with average values of 0.39 and 0.43, respectively. The cluster analysis of the SSR markers showed that the kenaf genotypes could be clearly divided into three clusters based on flowering time. Correlations analysis was conducted for the 80 SSR markers; morphological, chemical and growth traits were found for 15 marker traits (corolla, vein, petal, leaf, stem color, leaf shape, and KGRI content) with significant marker-trait correlations. These results could be used for the selection of kenaf cultivars with improved yield and functional compounds.
Keywords : Kenaf, Morphological chracteristics, Phenolic compounds, SSR markers, Correlation analysis


December 2017, 44 (4)
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