Variability in growth and reproduction in F1-families of an Erophila verna population

Seeds from two morphologically different groups in an Erophila verna dune population were used in a growth experiment to analyse and quantify flexibility and plasticity of growth and reproductive characteristics. A strong correlation between plant morphology and individual seed weight was shown in p...

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Bibliographic Details
Published in:Oecologia 1986-04, Vol.69 (1), p.79-85
Main Authors: Andel, J. van, Rozijn, N.A.M.G, Ernst, W.H.O, Nelissen, H.J.M
Format: Article
Language:English
Subjects:
anatomy and morphology
Annuals
Applied sciences
Biological and medical sciences
Brassicaceae
Crop harvesting
Dunes
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
Genetics of eukaryotes. Biological and molecular evolution
growth
Leaves
Other techniques and industries
Plant growth
Plant roots
Plants
plasticity
Population genetics, reproduction patterns
Population growth
Pteridophyta, spermatophyta
reproduction
seed weight
Seedlings
Seeds
Vegetals
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Summary:Seeds from two morphologically different groups in an Erophila verna dune population were used in a growth experiment to analyse and quantify flexibility and plasticity of growth and reproductive characteristics. A strong correlation between plant morphology and individual seed weight was shown in parents and progeny. Seeds of plants with narrow leaves were twice as heavy (H-plants) as those from plants with broad leaves (L-plants). Families of H-plants allocated ca. 10% more dry matter to the roots. These characters were fixed, presumably due to selfing. Plants of both types are characterized by a graded control function between the vegetative and the reproductive phase. Most of the families showed a single switch from vegetative to reproductive growth, two families showed even two switch periods. Between-family differentiation is interpreted as a result of multiniche selection in populations of Erophila verna. Within-family variation is disadvantageous due to low fecundity.
ISSN:0029-8549
1432-1939
DOI:10.1007/BF00399041