Letter | Published:

Cytogenetical Studies in the Genus Citrus

Abstract

THE diploid, 2n = 18, seems to be a physiologically optimum condition in the genus Citrus. In many species the polyploids are known to arise spontaneously from seeds. But there are comparatively few instances of vigorous and economically useful polyploids in this genus. It is really interesting that such a large genus, having numerous species, should generally have the same chromosome numbers. With this idea in view, cytogenetical studies were undertaken to investigate the cytological basis of speciation in this genus.

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References

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    Naithani, S. P., and Raghuvanshi, S. S., Naturwiss. (in the press).

  2. 2

    Tanaka, T., J. Ind. Bot. Soc., 16 (4), 36 (1937).

  3. 3

    Stern, H., J. Hered., 37, 46 (1946).

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