The effect of crossing distances and population subdivision on floral morphology inScleranthus annuus (Caryophyllaceae), a selfing annual |
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Authors: | Linus Svensson |
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Affiliation: | (1) Department of Systematic Botany, University of Lund, Ö. Vallg. 18-20, S-223 61 Lund, Sweden |
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Abstract: | I used a discontinuous population ofScleranthus annuus (Caryophyllaceae) to study the effect of crossing distances on flower morphology of the progeny. Four types of progeny were produced by artificial selfing, crossing with pollen-donors from the same patch in the population, crossing with pollen from donors from other patches in the population and inter-population crosses. The size of gynoecium parts and 12 sepal characters in this petal-lacking species were significantly influenced by the type of cross and the patch in the population from where the seed-parents originated. All comparisons of progeny types except selfed vs progeny produced by within-patch crosses were significantly separated from each other, while all four seed-parent patches used were significantly separated in a multidimensional space. |
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Keywords: | Angiosperms Caryophyllaceae Scleranthus Floral morphology within-population crosses |
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