Abstract
A comparison between the non-radiate and radiate morphs of Senecio vulgaris for several life history characteristics was made within samples from four geographically separated populations in Britain. For most traits investigated, differences between morph means were common. However, only differences in seed germination behaviour were consistent over all populations. It was also evident that for most characters the non-radiate morph exhibited a similar or greater amount of variation both between and within families than the radiate morph. Possible causes and effects of variation in life history differences between morphs over populations are discussed and considered in relation to the maintenance of the polymorphism for capitulum type and outcrossing rate in natural populations of S. vulgaris.
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Abbott, R. Life history variation associated with the polymorphism for capitulum type and outcrossing rate in Senecio vulgaris L.. Heredity 56, 381–391 (1986). https://doi.org/10.1038/hdy.1986.60
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DOI: https://doi.org/10.1038/hdy.1986.60
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