Journal of Genetics

, Volume 16, Issue 3, pp 363–385 | Cite as

Genetic studies inBrassica oleracea

  • M. S. Pease


  1. 1.

    There are two independent factors,N1 andN2, which are normally present in the Kale type ofB. oleracea; when both these factors are absent, the common Cabbage heart developes under normal cultural conditions. Intermediate degrees of “hearting” are produced by one or two “doses” ofN.

  2. 2.

    The Heart character shows “linkage” with a number of other characters. Clearly it is of interest to determine, in each case, whether linkage is with the factorN1 or withN2.

  3. 3.

    There is one linkage group comprising the factorsN1, P for petiolate leaves as against sessile,E for entire leaves as against lyrate, andW which determines broad as distinct from narrow leaves. There is some evidence that there is also in this group a factorK1, one of the multiple factors for the Curly foliage of Scotch Kale.

  4. 4.

    There is a second linkage group containing the factorsN2,T for tall habit as against sessile habit, and probably the factor K2 of the curly series.

  5. 5.

    There are two so far unattached factors, one of which,D, differentiates between the purple and green types ofoleracea; the other,A, determines the “Asparagodes” malformation of the foliage.

  6. 6.

    Thus the ten factors so far considered account for four of the nine chromosomes ofB. oleracea.



Brassica Oleracea Intermediate Grade Brussels Sprout Curly Foliage Table XVII 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Select bibliography

  1. (1).
    Bailey, L. H. “The Cultivated Brassicas.”Gentes Eerbarum, 1922.Google Scholar
  2. (2).
    Karpetschenko, G. D. “Hybrids ofRaphanus sativus L.x Brassica oleracea L.”Journal of Genetics, 1924.Google Scholar
  3. (3).
    Kristofferson, K. B. “Contributions to the Genetics ofBrassica oleracea.” Hereditas, v. 1924.Google Scholar
  4. (4).
    Malinowski, E. “Sur les hybrides du chou pommé avec le chou frisé.”Mémoires de l’Institut de Génétique de École Supérieure d’Agriculture à Varsovie. Livraison i, 1921.Google Scholar
  5. (5).
    - “Quelques observations sur les hybrids du genreBrassica.” Ibid. Livraison ii. 1924.Google Scholar
  6. (6).
    Sutton, A. W. “Brassica Crosses.”Journal of the Limiean Society (Botany), 1908.Google Scholar

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© Indian Academy of Sciences 1926

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  • M. S. Pease

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