Comparative Analysis of Volatile Compounds of Gamma-Irradiated Mutants of Rose (Rosa hybrida)

Jaihyunk Ryu; Dong-Gun Kim; Jung Min Kim; Jae Il Lyu; Yeong Deuk Jo; Si-Yong Kang; Jin-Baek Kim; Sang Hoon Kim

doi:10.20944/preprints202007.0687.v1

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preprints.org > chemistry and materials science > applied chemistry > doi: 10.20944/preprints202007.0687.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Comparative Analysis of Volatile Compounds of Gamma-Irradiated Mutants of Rose (Rosa hybrida)

Version 1 : Received: 28 July 2020 / Approved: 29 July 2020 / Online: 29 July 2020 (09:46:55 CEST)

A peer-reviewed article of this Preprint also exists.

Ryu, J.; Lyu, J.I.; Kim, D.-G.; Kim, J.-M.; Jo, Y.D.; Kang, S.-Y.; Kim, J.-B.; Ahn, J.-W.; Kim, S.H. Comparative Analysis of Volatile Compounds of Gamma-Irradiated Mutants of Rose (Rosa hybrida). Plants 2020, 9, 1221. Ryu, J.; Lyu, J.I.; Kim, D.-G.; Kim, J.-M.; Jo, Y.D.; Kang, S.-Y.; Kim, J.-B.; Ahn, J.-W.; Kim, S.H. Comparative Analysis of Volatile Compounds of Gamma-Irradiated Mutants of Rose (Rosa hybrida). Plants 2020, 9, 1221.

Abstract

Roses are one of the most important floricultural crops, and their essential oils have long been used for cosmetics and aromatherapy. We investigated the volatile compound compositions of 12 flower-color mutant variants and their original cultivars. Twelve rose mutant genotypes were developed by treatment with 70 Gy of 60Co gamma irradiation of six commercial rose cultivars. Essential oils from the flowers of the 18 genotypes were analyzed by gas chromatography–mass spectrometry. Seventy-seven volatile compounds were detected, which were categorized into five classes: hydrocarbons, terpenoids, alcohols, esters, and others. Hydrocarbons, alcohols, and esters were major components in all rose flowers. The mutant genotypes CR-S8 and CR-S9 showed higher contents of hydrocarbons than the original cultivar. In addition, CR-S1, CR-S3, and CR-S4 mutant genotypes showed higher ester contents than their original cultivar. Nonacosane, 2-methylhexacosane, and 2-methyltricosane were major volatile compounds among all genotypes. Hierarchical cluster analysis of the rose genotypes gave four groups according to grouping among the 77 volatile compounds. These findings will be useful for the selection of rose genotypes with improved volatile compounds.

Keywords

Gamma-ray, Mutant, Rose, Volatile compounds, GC-MS

Subject

Chemistry and Materials Science, Applied Chemistry

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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