Genetic variability of forage grass cultivars: a comparison of Festuca pratensis Huds., Lolium perenne L., and Dactylis glomerata L

Three widely used cultivars of each of the species Festuca pratensis Huds., Lolium perenne L., and Dactylis glomerata L. were investigated by means of randomly amplified polymorphic DNA (RAPD) markers and vegetative growth traits in order to investigate genetic variability within each cultivar and t...

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Bibliographic Details
Published in:Euphytica 1999-01, Vol.106 (3), p.261-270
Main Authors: Kolliker, R. (Swiss Federal Inst. of Technology, Zurich (Switzerland). Inst. of Plant Sciences), Stadelmann, F.J, Reidy, B, Nosberger, J
Format: Article
Language:English
Subjects:
Adaptability
Agronomy. Soil science and plant productions
Biological and medical sciences
Coefficient of variation
Crop science
Cultivars
DACTYLIS GLOMERATA
FESTUCA PRATENSIS
Fundamental and applied biological sciences. Psychology
Generalities. Genetics. Plant material
Genetic diversity
GENETIC MARKERS
Genetic resources, diversity
Genetic variability
GENETIC VARIATION
Genetics
Genetics and breeding of economic plants
Grasses
LOLIUM PERENNE
MARCADORES GENETICOS
Markers
MARQUEUR GENETIQUE
Plant material
Random amplified polymorphic DNA
RAPD
Species
Species diversity
Studies
Variability
VARIACION GENETICA
Variance analysis
VARIATION GENETIQUE
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Summary:Three widely used cultivars of each of the species Festuca pratensis Huds., Lolium perenne L., and Dactylis glomerata L. were investigated by means of randomly amplified polymorphic DNA (RAPD) markers and vegetative growth traits in order to investigate genetic variability within each cultivar and to compare the level of diversity among cultivars and species. RAPD markers allowed a clear separation of the three species. Genetic variability based on RAPD markers was considerably lower for F. pratensis cultivars than for L. perenne and D. glomerata cultivars which showed similar levels of variability. The proportion of variability due to variation within cultivars, determined by an analysis of molecular variance, was lower in F. pratensis (64.6%) than in L. perenne (82.4%) and D. glomerata (85.1%). A comparison of F. pratensis and L. perenne, based on vegetative growth traits, confirmed the differences in genetic variability within cultivars. F. pratensis showed lower coefficients of genetic variation for eight of ten traits when compared to L. perenne. This study demonstrates considerable differences in genetic variability which may have consequences for the adaptability and persistency of individual cultivars.
ISSN:0014-2336
1573-5060
DOI:10.1023/A:1003598705582