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Linkage in Structural Hybrids in Pisum sativum

Nature volume 139, pages 113–114 (1937)Cite this article

Abstract

THE genetical analysis of some of the interchanged lines in Pisum sativum, reported on by Mrs. Sansome above, has given evidence on the distribution of the genes in the normal structural type. In plants of normal structure the genes R (R/r = round/wrinkled cotyledons) and A (A/a = coloured/white flowers) have been exhaustively studied in F2 families from self-fertilization. By this method no clear indication of linkage was found. From back-crosses (453 plants from heterozygous females, and 418 plants from heterozygous males) 47 per cent of crossing-over was obtained1. Hence, in a recent summary of our knowledge of linkage in Pisum, these two genes are placed in different chromosomes2.

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References

  1. Pellew, C., Z. Zucht. A, Pflanzenzücht., 17, 90 (1931).

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  2. Winge, Ö., C.R. Trav. Lab. Carlsb., (Ser. Physiol., 15), 21 (1936).

  3. Sansome, F. W., and E. R., unpublished.

  4. Sansome, E. R., Cytologia, 3, 200 (1932).

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  5. Sutton, E., Ann. Bot., 49, 689 (1935).

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Authors and Affiliations

  1. John Innes Horticultural Institution, London, S.W.19

    CAROLINE PELLEW

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  1. CAROLINE PELLEW
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PELLEW, C. Linkage in Structural Hybrids in Pisum sativum. Nature 139, 113–114 (1937). https://doi.org/10.1038/139113b0

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