Abstract
Experiments are described which show that Senecio vulgaris L. (common groundsel) possesses two independent systems which inhibit the germination of self pollen. In one system, self but not cross pollen tube penetration of the stigma is prevented in the ray florets of a proportion of radiate plants. In the other system, cross pollen adheres in greater quantity than self pollen 24 hours after application to disc floret stigmas of both radiate and non-radiate plants. The possible origins of these systems, and their functions in natural populations, are discussed.
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Bateman, A J. 1956. Cryptic self-incompatibility in the wallflower Cheiranthus cheiri L. Heredity, 10, 257–261.
Burtt, B L. 1977. Aspects of diversification of the capitulum. In Heywood et al. (eds.) The Biology and Chemistry of the Compositae, Vol 1, Academic Press, London, pp. 41–59.
Campbell, J M, and Abbott, R J. 1976. Variability of outcrossing frequency in Senecio vulgaris. Heredity, 36, 267–274.
Darwin, C. 1877. The Different Forms of Flowers on Plants of the Same Species, 2nd ed. John Murray, London.
D'Souza, L. 1972. Staining pollen tubes in the styles of cereals with cotton blue. Stain Technol 47, 107–108.
Gibbs, P E. 1971. Studies on synthetic hybrids of British species of Senecio, 1. Senecio viscosus L. × S. vulgaris L. Trans, bot Soc Edinb, 41, 213–218.
Gibbs, P E, Milne, C, and Vargas Carrillo, M V. 1975. Correlation between the breeding systems and recombination index in five species of Senecio. New Phytol, 75, 619–626.
Haskell, G. 1953. Adaptation and the breeding system in groundsel. Genetica, 26, 468–484.
Hull, P. 1974. Self fertilisation and the distribution of the radiate form of Senecio vulgaris L. in Central Scotland. Watsonia, 10, 69–75.
Ingram, R. 1977. Synthesis of the hybrid Senecio squalidus L.xS. vulgaris L. f. radiatus Hegi. Heredity, 39, 171–173.
Ingram, R, Weir, J, and Abbott, R J. 1980. New evidence concerning the origin of inland radiate groundsel, Senecio vulgaris L. var hibernicus Syme. New Phytol 84, 543–546.
Kadereit, J W. 1984. The origin of Senecio vulgaris L. (Asteraceae). Pl Syst Evol, 145, 135–155.
Kho, Y O, and Baer, J. 1968. Observing pollen tubes by means of fluorescence. Euphytica, 17, 298–302.
Marshall, D F, and Abbott, R J. 1982. Polymorphism for outcrossing frequency at the ray floret locus in Senecio vulgaris L. I. Evidence. Heredity, 48, 227–235.
Marshall, D F, and Abbott, R J. 1984a. Polymorphism for outcrossing frequency at the ray floret locus in Senecio vulgaris L. II. Confirmation. Heredity, 52, 331–336.
Marshall, D F, and Abbott, R J. 1984b. Polymorphism for outcrossing frequency at the ray floret locus in Senecio vulgaris L. III. Causes. Heredity, 53, 145–149.
Proctor, M, and Yeo, P. 1973. The Pollination of Flowers. Collins, London.
Richards, A J. 1975. The inheritance and behaviour of the rayed gene complex in Senecio vulgaris. Heredity, 34, 95–104.
Trow, A H. 1912. On the inheritance of certain characters in the common groundsel-Senecio vulgaris, Linn.-and its segregates. J Genet, 2, 239–276.
Weller, S G, and Ornduff, R. 1977. Cryptic self-incompatibility in Amsinckia grandiflora Kleeb. Evolution, 31, 47–51.
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Warren, J., Crawford, T. & Oxford, G. Inhibition of self pollen germination in Senecio vulgaris L.. Heredity 60, 33–38 (1988). https://doi.org/10.1038/hdy.1988.6
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DOI: https://doi.org/10.1038/hdy.1988.6
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