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Morphological, cytological and molecular variations induced by gamma rays in Chrysanthemum morifolium ‘Donglinruixue’ Cover

Morphological, cytological and molecular variations induced by gamma rays in Chrysanthemum morifolium ‘Donglinruixue’

By: Ling Wang,  Jianhui Wu,  Feng Lan and  Pengfei Gao  
Open Access
|May 2020

Abstract

The current study investigated the effects of gamma radiation on the death rate, morphological traits and meiotic abnormalities in ground-grown chrysanthemum ‘Donglinruixue’, and inter-simple sequence repeat (ISSR) markers were used to identify the DNA polymorphism among mutants. The results showed that the death rate significantly increased with increase in radiation dose. Semi-lethal (LD50) dose was approximately 35 Gy. Compared with unirradiated control, plant growth was significantly inhibited. After irradiation, a series of morphological variations and cytological aberrations occurred in radiated plants. The peak in variation frequency appeared at 35 Gy. In total, ISSR analysis produced 72 scorable bands, of which 64 (88.89%) were polymorphic. The current study demonstrated that gamma irradiation generates a sufficient number of induced mutations and that ISSR analysis offered a useful molecular marker analysis for the identification of mutants.

DOI: https://doi.org/10.2478/fhort-2020-0009 | Journal eISSN: 2083-5965 | Journal ISSN: 0867-1761
Language: English
Page range: 87 - 96
Submitted on: Dec 13, 2019
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Accepted on: Mar 31, 2020
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Published on: May 18, 2020
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2020 Ling Wang, Jianhui Wu, Feng Lan, Pengfei Gao, published by Polish Society for Horticultural Sciences (PSHS)
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.