Letter | Published:

Basis of the Diploid-like Meiotic Behaviour of Polyploid Cotton

Naturevolume 191pages98100 (1961) | Download Citation



THE cultivated cottons (Gossypium barbadense and G. hirsutum) are allotetraploids derived from two geographically isolated diploid species ; one, an Asiatic species, donating the A genome and the other, an American species, donating the D genome. The chromosomes of the diploid progenitors differ in length, those of the A genome species being longer than those of the D genome species. Furthermore, this size difference is maintained in the polyploid, in which chromosomes of two size-categories can be recognized. A histogram (Fig. 1) of the lengths of the somatic chromosomes from root-tips of seven plants of G. barbadense shows a bimodal distribution of the chromosome lengths and also indicates that there is a small overlap between the two groups.

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  1. 1

    Endrizzi, J. E., J. Hered., 48, 221 (1957). Iyengar, N. K., Ind. J. Agric. Sci., 14, 142 (1944). Brown, M. S., and Menzel, M. Y., Genetics, 37, 242 (1952). Brown, M. S., Genetics, 39 (Abs.), 962 (1952). Skovsted, A., J. Genet., 34, 97 (1937).

  2. 2

    Riley, R., and Chapman, V., Nature, 182, 713 (1958). Riley, R., Heredity (in the press).

  3. 3

    Riley, R., Chapman, V., and Kimber, G., Nature, 183, 1244 (1959).

  4. 4

    Darlington, C. D., Recent Advances in Cytology (1937).

  5. 5

    Gerstel, D. U., Evolution, 7, 234 (1953).

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  1. Plant Breeding Institute, Maris Lane, Trumpington, Cambridge

    • G. KIMBER


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