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Cytogenetics of Obligatory Parthenogenesis1

Published online by Cambridge University Press:  31 May 2012

Stanley G. Smith
Affiliation:
Forest Insect Laboratory, Sault Ste. Marie, Ontario

Extract

The larch sawfly, Pristiphora erichsonii (Htg.), like the European spruce sawfly, Diprion (Gilpinia) hercyniae (Htg.), is an obligatoty parthenogenetic ‘species’, that is, it is endowed with the capacity of reproducing without recourse to mating. Wlde this absence of cross-fertilization with the attendant uniformity of progeny it assures renders such species ideally suited for experiments requiring the use of controls, it would at first sight appear ro preclude the adoption of conventional genetic procedures in studying them, other than by circuitous means: it is the main purpose of this contribution to suggest a possible means of circumventing the difficulty.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1955

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References

Comrie, L. C. 1938. Biological and cytological observations on tenthredinid parthenogenesis. Nature 142: 877878.CrossRefGoogle Scholar
Dobzhansky, Th. 1951. Genetics and the Origin of Species, 3rd ed.Columbia University Press.Google Scholar
Hewitt, C. G. 1912. The large larch sawfly. Can. Dept. Agr. Expl. Farms Bull. No. 10—Second Series, Ent. Bull. No. 5: 142.Google Scholar
Mangan, J. 1910. Some remarks on the parasites of the large larch sawfly Nematus erichsonii. J. Econ. Biol. 5: 9294.Google Scholar
Muldrew, J. A. 1953. The natural immunity of the larch sawfly (Pristiphora erichsonii (Htg.)) to the introduced parasite Mesoleius tenthredinis Morley, in Manitoba and Saskatchewan. Canad. J. Zool. 31: 313332.CrossRefGoogle Scholar
Peacock, A. D., and Sanderson, A. R.. 1939. The cytology of the thelytokous parthenogenetic sawfly Thrinax macula. Trans. Roy. Soc. Edin. 59: 647660.CrossRefGoogle Scholar
Reeks, W. A. 1954. An outbreak of the larch sawfly (Pristiphora erichsonii (Htg.)) in the Maritime Provinces (Hymenoptera: Tenthredinidae) and the role of parasites in its control. Canad. Ent. 86: 471480.CrossRefGoogle Scholar
Smith, S. G. 1941. A new form of spruce sawfly identified by means of its cytology and parthenogenesis. Sci. Agr. 21: 244305.Google Scholar
Smith, S. G. 1943. Techniques for the study of insect chromosomes. Canad. Ent. 75: 2134.CrossRefGoogle Scholar
Stebbins, G. L. 1950. Variation and Evolution in Plams. Columbia University Press.CrossRefGoogle Scholar
Suomalainen, E. 1950. Parthenogenesis in animals. Adv. Genet. 3: 193253.CrossRefGoogle ScholarPubMed