Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-28T04:25:05.451Z Has data issue: false hasContentIssue false
  • English
  • Français

XIV.—Male Haploidy and Female Diploidy in Sirex cyaneus F. (Hymen.)

Published online by Cambridge University Press:  15 September 2014

A. D. Peacock  and
R. A. R. Gresson
A. D. Peacock
Affiliation:
University College (University of St Andrews), Dundee
R. A. R. Gresson
Affiliation:
University College (University of St Andrews), Dundee
Get access

Summary

1. From the above it is therefore justifiable to conclude that Sirex cyaneus is typically hymenopterous, in that:

(a) the ripe male reproductive tissue is haploid (8 chromosomes), while the female oogonia are diploid (16 chromosomes);

(b) the abortive character of the first spermatocyte division is evidence that chromosome reduction does not occur during the maturation of the male gametes.

2. Support is thus afforded to the hypothesis commonly held, that the male hymenopteron is a haploid organism and is the product of an unfertilised (haploid) egg, while the female is a diploid organism arising from a fertilised egg.

3. Feulgen's “Nuclealreaktion” holds for the chromatin involved in the abortive division and for the chromosomes of the second spermatocyte; but the large chromatoid body and cytoplasmic granules seen in these same stages by the iron hæmatoxylin technique did not give the chromatin reaction. The nature of these chromatoid bodies remains to be discovered.

Type
Proceedings
Information
Proceedings of the Royal Society of Edinburgh , Volume 51 , 1932 , pp. 97 - 103
Copyright
Copyright © Royal Society of Edinburgh 1932

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

(1)Doncaster, L., “Gametogenesis of the Gall-fly, Neuroterus lenticularis (Spathegaster baccarum), Part 1,” Proc. Roy. Soc., B, vol. lxxxii, 1910.Google Scholar
(2)Feulgen, R., “Die Nuclealfarbung,” Abderhalden's Handbuch der biologischen Arbeitsmethoden, Abt. V, Lief. 213, 1924.Google Scholar
(3)Gresson, R. A. R., “Certain Phenomena of Tenthredinid Oogenesis as revealed mainly by Feulgen's Nuclear-Reaction,” Quart. Journ. Micro. Sci., vol. lxxiii, 1930.Google Scholar
(4)Ludford, R. J., “Studies on the Microchemistry of the Cell. I. The chromatin content of normal and malignant cells, as demonstrated by Feulgen's Nuclealreaktion,” Proc. Roy. Soc., B, vol. cii, 1928.Google Scholar
(5)Patterson, J. T., and Porter, L. T., “Studies on the Biology of Paracopidosomopsis. II. Spermatogenesis of males reared from unfertilised eggs,” Biol. Bull., vol. xxxiii, 1917.Google Scholar
(6)Peacock, A. D., and Sanderson, A. R., “Cytological Evidence of Male Haploidy and Female Diploidy in a Saw-fly (Hymenoptera),” Proc. Second Intern. Cong, for Sex Research, 1931.Google Scholar
(7)Vandel, A., La Parthénogénèse, Paris, 1931.Google Scholar
(8)Wieman, H. L., “Observations on the Spermatogenesis of the Gall-fly, Dryophanta erinacei (Mayr.),” Biol. Bull., vol. xxviii, 1915.Google Scholar