Hostname: page-component-84b7d79bbc-4hvwz Total loading time: 0 Render date: 2024-07-25T07:36:53.791Z Has data issue: false hasContentIssue false
  • English
  • Français

Possible Models for Autocidal Control Based on the Meiotic Dynamics of Zonocerus variegatus L. (Orthoptera: Pyrgomorphidae)

Published online by Cambridge University Press:  19 September 2011

J. O. Faluyi
J. O. Faluyi
Affiliation:
Department of Botany, Obajemi Awolowo University, Ile-Ife, Nigeria
Get access

Abstract

Detailed cytological survey of the developmental stages of Zonocerus variegatus L. revealed major aberrations like lagging, precocious activity of chromosomes, X-autosome associations, pseudochiasmata, deletions, etc. Chiasmata were found to be largely terminally localized and meiosis commences as early as the third instar stage. Models for autocidal control are proposed based on these findings.

Résumé

Un examen cytologique détaillé des étapes du développement de Zonocerus variegatus L. révéla des aberrations majeures comme une activité retardée et précocieuse des chromosomes, associations des X-autosomes, pseudochiasmata et deletions, etc. Chiasmata ont été trouvés d'être principalement et terminablement localisés, et meiosis commence aussitot que la troisième étape d'instar. Des modeles pour le controle autocidal sont proposés, bases sur ces découvertes.

Keywords

Chromosome aberrationsterminal chiasmataautocidal control
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 9 , Issue 2 , April 1988 , pp. 205 - 209
Copyright
Copyright © ICIPE 1988

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

Akpabio, K. E. (1981) Effect of some chemical mutagens on the meiotic chromosomes of Zonocerus. L. (Orthoptera: Pyrgomorphidae), M.Sc. Thesis, University of Ife, Nigeria.Google Scholar
Anya, A. O. (1973) Ecology of the variegated grasshopper, Zonocerus variegatus (Orthoptera: Acrididae, Pyrgomorphidae) on Nsukka Plateau, Nigeria. Ent. exp. appl. 16, 65–76.Google Scholar
Faluyi, J. O. (1986) Chromosome studies in the nymphal and adult populations of Zonocerus variegatus L. (Orthoptera: Pyrgomorphidae) Ph.D. Thesis, University of Ife, Nigeria.Google Scholar
Foster, G. G. and Whitten, M. J. (1974) The development of genetic methods of controlling the Australian sheep blow fly Lucilia cuprina. In The Use of Genetics in Insect Control (Edited by Pal, R. and Whitten, M. J.), North Holland Company, Amsterdam and London.Google Scholar
Golding, F. D. (1940) Notes on the variegated grasshopper, Zonocerus variegatus L. in Nigeria. Bull. Ext. Res. 30, 543–550.Google Scholar
La Chance, L. E. (1978) Genetic strategies affecting the success and economy of the sterile insect release method. In Proceedings of Conference on Genetics in Relation to Insect Management (Edited by Hoy, M. A. and McKelvey, J. J. Jr), pp. 8–18.Google Scholar
Lasebikan, A. B. and Olorode, O. (1972) Morphological variation and cytological aberrations in natural populations of Zonocerus variegatus L. (Orthoptera: Pyrgomorphidae) Bull. Ent. Soc. Nigeria 3, 127–133.Google Scholar
Olorode, O. and Akingbohungbe, A. E. (1975) Analysis of chromosome behaviour and chromosomal aberrations in natural populations of Zonocerus variegatus L. in Nigeria. Nigerian J. Ent. 1, 161–171.Google Scholar
Overmeer, W. P. J. (1974) Genetic control of spider mites. In The Use of Genetics in Insect Control (Edited by Pal, R. and Whitten, M. J.), pp. 45–56.Google Scholar
Oyidi, O. (1967) Variation and variability in the orthopteran insects I. The influence of age on chiasma frequency in Zonocerus variegatus L. (Acrididae). J. W. Afr. Sci. Assoc. 12, 131–138.Google Scholar
Oyidi, O. (1968) Variation and variability in Orthopteran insects V. Notes on biological status of Zonocerus variegatus L. (Acrididae) in Nigeria with particular reference to the relationship between the dry and wet season populations. J. W. Afr. Sci. Assoc. 13, 150–164.Google Scholar
Schoof, H. F. (1970) Physiological resistance and development of resistance in field populations. Miscellaneous Publications of Entomological Society of America 7, 545–555.Google Scholar
Whitten, M. J. and Pal, R. (1974) Introduction. In The use of Genetics in Insect Control (Edited by Pal, R. and Whitten, M. J.), pp. 1–16. North Holland Pub. Coy., Amsterdam and London.Google Scholar
Youdeowei, A. (1974) The Dissection of the Variegated Grasshopper, Zonocerus variegatus. Oxford University Press, Ibadan.Google Scholar