Leaf color variants from coleus shoot cultures

Leaf color variants from coleus shoot cultures

Nuclear-controlled leaf variegation was studied among Coleus X hybridus Voss (formerly C. blumei Benth.) cultivars propagated by seed and as shoot cultures on Murashige and Skoog (MS) medium + 1 to 3 mg BA/liter. Cultivars tested possessed pattern chlorophyll variegation and either pattern or nonpat...

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Bibliographic Details
Published in:Journal of the American Society for Horticultural Science Vol. 115; no. 4; pp. 681 - 686
Main Authors: Marcotrigiano, M. (University of Massachusetts, Amherst, MA), Boyle, T.H, Morgan, P.A, Ambach, K.L
Format: Journal Article
Language:English
Published: Alexandria, VA American Society for Horticultural Science 01-07-1990
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
CHLOROPHYLLE
CLOROFILAS
COLEUS
CONTROL GENETICO
CULTIVO DE TEJIDOS
CULTURE DE TISSUS
FENOTIPOS
FEUILLE
FLAVONOIDE
FLAVONOIDES
Fundamental and applied biological sciences. Psychology
Genetics and breeding of economic plants
HOJAS
LUTTE GENETIQUE
PHENOTYPE
TALLO
TIGE
VARIACION GENETICA
VARIATION GENETIQUE
VARIEDADES
Varietal selection. Specialized plant breeding, plant breeding aims
VARIETE
Yield, quality, earliness, varia
Anthocyanin
Chlorophyll
In vitro vegetative propagation
Genetic variability
Color
Ornamental crop
Somaclonal variation
Phenotype
Labiatae
Dicotyledones
Angiospermae
Spermatophyta
Coleus blumei
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Description
Summary:Nuclear-controlled leaf variegation was studied among Coleus X hybridus Voss (formerly C. blumei Benth.) cultivars propagated by seed and as shoot cultures on Murashige and Skoog (MS) medium + 1 to 3 mg BA/liter. Cultivars tested possessed pattern chlorophyll variegation and either pattern or nonpattern anthocyanin variegation. The gene controlling an albino midrib region appears to be fairly stable, with only 2% of the micropropagated plantlets having a solid-green leaf characteristic, a characteristic that was always inherited following selfing. Pattern anthocyanin variegation (PAV) was fairly stable, while nonpattern anthocyanin variegation (NAV) was very unstable. In addition, variants from pattern-variegated phenotypes produced offspring identical to their parent following selfing. In contrast, variants of nonpattern cultivars, when selfed, yielded offspring identical to the original cultivar, identical to the variant, or novel phenotypes. When variants were returned to culture, those derived from cultivars with PAV were more stable than those derived from nonpattern cultivars. In Coleus, micropropagation may induce epigenetic and/or heritable changes in leaf variegation. Cultivars with NAV are less stable than cultivars with PAV
Bibliography:F30
9045821
ISSN:0003-1062
2327-9788
DOI:10.21273/JASHS.115.4.681