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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Determination of the ploidy levels in the regenerated L. chinense plants: (a) flow cytometry histogram of diploids; (b) flow cytometry histogram of tetraploids; (c) somatic chromosome number of diploids (2n = 2x = 24); (d) somatic chromosome number of tetraploids (2n = 4x = 48).