Polyploidy induction in Phlox paniculata L. under in vitro conditions

The objective of this work was to find an effective method of polyploidy induction using chemomutagens, colchicine and oryzalin, in diploid cultivar of Phlox paniculata ‘Fujiyama’ (syn. Mt. Fuji, Fuji). Ploidy level was determined by the flow cytometry method (FCM). Two methods of treating the expla...

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Main Authors: Pavel Matiska, Hana Vejsadová
Format: Article
Language:English
Published: Mendel University Press 2010-01-01
Series:Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
Subjects:
Online Access:https://acta.mendelu.cz/58/1/0101/
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author Pavel Matiska
Hana Vejsadová
author_facet Pavel Matiska
Hana Vejsadová
author_sort Pavel Matiska
collection DOAJ
description The objective of this work was to find an effective method of polyploidy induction using chemomutagens, colchicine and oryzalin, in diploid cultivar of Phlox paniculata ‘Fujiyama’ (syn. Mt. Fuji, Fuji). Ploidy level was determined by the flow cytometry method (FCM). Two methods of treating the explants (in vitro regenerated shoots) were tested; chemomutagen infiltration from nutrient media (“the infiltration method”) and dipping of the explants in a chemical mutagen solution (“the dip method”). The highest values of tetraploid (5%), mixoploid (1.67%) frequency and polyploidization efficiency (1.25) were found in explants treated with 0.2% colchicine for 24 h in the dip method. Concentrations of 10 µM oryzalin and 0.2% colchicine for 14 d were the most effective for obtaining tetraploids in the infiltration method. The results will be exploited to other P. paniculata cultivars for breeding of this species.
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spelling doaj.art-32d95b437c6e49aea8be3a051945862f2022-12-22T00:48:57ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102010-01-0158110110610.11118/actaun201058010101Polyploidy induction in Phlox paniculata L. under in vitro conditionsPavel Matiska0Hana Vejsadová1Česká zemědělská univerzita v Praze, Fakulta agrobiologie, potravinových a přírodních zdrojů, Kamýcká 129, 165 21 Praha 6, Česká republikaVýzkumný ústav Silva Taroucy pro krajinu a okrasné zahradnictví, v.v.i., Květnové nám. 391, 252 43 Průhonice, Česká republikaThe objective of this work was to find an effective method of polyploidy induction using chemomutagens, colchicine and oryzalin, in diploid cultivar of Phlox paniculata ‘Fujiyama’ (syn. Mt. Fuji, Fuji). Ploidy level was determined by the flow cytometry method (FCM). Two methods of treating the explants (in vitro regenerated shoots) were tested; chemomutagen infiltration from nutrient media (“the infiltration method”) and dipping of the explants in a chemical mutagen solution (“the dip method”). The highest values of tetraploid (5%), mixoploid (1.67%) frequency and polyploidization efficiency (1.25) were found in explants treated with 0.2% colchicine for 24 h in the dip method. Concentrations of 10 µM oryzalin and 0.2% colchicine for 14 d were the most effective for obtaining tetraploids in the infiltration method. The results will be exploited to other P. paniculata cultivars for breeding of this species.https://acta.mendelu.cz/58/1/0101/Phlox<i>in vitro</i> culturecolchicineoryzalinpolyploidizationflow cytometry method (FCM)
spellingShingle Pavel Matiska
Hana Vejsadová
Polyploidy induction in Phlox paniculata L. under in vitro conditions
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
Phlox
<i>in vitro</i> culture
colchicine
oryzalin
polyploidization
flow cytometry method (FCM)
title Polyploidy induction in Phlox paniculata L. under in vitro conditions
title_full Polyploidy induction in Phlox paniculata L. under in vitro conditions
title_fullStr Polyploidy induction in Phlox paniculata L. under in vitro conditions
title_full_unstemmed Polyploidy induction in Phlox paniculata L. under in vitro conditions
title_short Polyploidy induction in Phlox paniculata L. under in vitro conditions
title_sort polyploidy induction in phlox paniculata l under in vitro conditions
topic Phlox
<i>in vitro</i> culture
colchicine
oryzalin
polyploidization
flow cytometry method (FCM)
url https://acta.mendelu.cz/58/1/0101/
work_keys_str_mv AT pavelmatiska polyploidyinductioninphloxpaniculatalunderinvitroconditions
AT hanavejsadova polyploidyinductioninphloxpaniculatalunderinvitroconditions