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Specific differences inPetunia

II. Pollen growth

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Summary

1. A study has been made of pollen-tube growth inPetunia axillaris, P. violacea and theF 1 interspecific hybrid.

2. The mode of pollen-tube growth confirms the conclusions arrived at by Mather on the basis of seed set and a study of theF 2.

3. The distribution of hybrid pollen tubes in styles and a comparison of the growth ofP. axillaris, P. violacea and theF 1 hybrid pollen onP. axillaris style point to the existence of a number of genes, distinguishing the two parent species, affecting the functioning of the incompatibility system and of specific isolation.

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References

  • Crane, M. B. &Lawrence, W. J. C. (1929). Genetical and cytological aspects of incompatibility and sterility in cultivated fruits.J. Pomol.7, 276–301.

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  • East, E. M. &Park, J. B. (1917). Studies on self-sterility. II. Pollen-tube growth.Genetics,3, 353–66.

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  • Mather, K. (1943). Specific differences inPetunia. I. Incompatibility.J. Genet.45, 215–35.

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  • Sears, E. R. (1937). Cytological phenomena connected with self-sterility in the flowering plants.Genetics,22, 130–81.

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Authors and Affiliations

  1. John Innes Horticultural Institution, Merton, London

    A. J. Bateman

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  1. A. J. Bateman
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Bateman, A.J. Specific differences inPetunia . Journ. of Genetics 45, 236–242 (1943). https://doi.org/10.1007/BF02982966

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  • DOI: https://doi.org/10.1007/BF02982966

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