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Spatial and Temporal Genetic Variation in Populations of the Whitefly Bemisia Tabaci (Genn.) in Israel and Colombia: an Interim Report

Published online by Cambridge University Press:  19 September 2011

David Wool ,
Dan Gerling ,
Anthony Bellotti ,
Francisco Morales  and
Barry Nolt
David Wool
Affiliation:
Department of Zoology, Tel Aviv University, Ramat Aviv 69978, Israel
Dan Gerling
Affiliation:
Department of Zoology, Tel Aviv University, Ramat Aviv 69978, Israel
Anthony Bellotti
Affiliation:
Centro Internacional de Agricultura Tropical (CIAT), Apartado Aereo 6713, Cali, Colombia
Francisco Morales
Affiliation:
Centro Internacional de Agricultura Tropical (CIAT), Apartado Aereo 6713, Cali, Colombia
Barry Nolt
Affiliation:
Centro Internacional de Agricultura Tropical (CIAT), Apartado Aereo 6713, Cali, Colombia
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Abstract

Intensive investigations of genetic variation within and among populations of the whitefly, Bemisia tabaci, are under way in Israel and in Colombia. A polymorphic esterase (EST), which seems to be controlled by a Mendelian locus, has two alleles in sufficiently high frequencies to be useful as a genetic marker. The analysis of more than 10,000 individual adult whiteflies shows genetic differences among localities in the frequencies of the fast (F) and slow (S) alleles. These differences seem to be related to the intensity of insecticide use against the whitefly. The frequency of F is high in unsprayed areas and in control laboratory populations, but is close to zero in heavily-sprayed agricultural areas. The frequency of Fon cotton in agricultural areas is high in winter and spring, but decreases dramatically in the summer (coincidental with the onset of pest-control activities on cotton). A similar temporal pattern on untreated Lantana may be due to migration of adults from agricultural fields. There was no indication of differentiation of populations on different host plants. In Colombia, the difference in EST patterns in different States are very pronounced, suggestive of geographical races. Small samples from Florida, California and Kenya indicate that B. tabaci in different countries may be genetically distinct.

Résumé

D'intenses travaux de recherche sur le transfert génétique parmi les membres d'une même communauté d'une variété de la mouche blanche, la Bemisia tabaci, sont actuellement en cours en Israël et en Colombie. Cette esterase polymorphique (EST), qui semble être très marquée par la caractéristique mendélienne, présente 2 allèles ou gènes allèlomorphes si fréquemment rencontrés qu'ils méritent d'être considérés comme des caractères génétiques. Une étude portant sur plus de 10.000 individus adultes révèle des différences génétiques régionales montrant la prédominance soit de l'allèle estimé rapide, le (F), ou de l'allèle estimé lent, le (S). Ces différences sont vraisemblablement fonction de la quantité des insecticides pulvérisés dans la région pour lutter contre la mouche blanche. La présence du (F) est prédominante dans la régions qui n'ont pas connu de pulvérisations d'insecticides et parmi les populations de mouches soumises au contrôle en laboratoire, mais elle est presque nulle dans les régions agricoles où lés insecticides ont été abondamment pulvérisés. Le (F) est également très abondant dans les plantations de coton en hivers et au printemps, tandis qu'en été le nombre décroit très sensiblement (cette diminution coïncide justement avec le début de la campagne de lutte contre les insectes nuisibles dans le plantations de coton). Une caractéristique saisonnière sembable observée sur la Lontana qui n'a pas été étudiée proviendrait probablement d'une migration des mouches adultes venant des plantations. Aucune distinction de groupes de mouches n'a été indiquée quant aux individus observés sur les différentes plantes-hôtes. En Colombie, la différence des caractéristiques chez la EST trouvée dans différentes régions est très prononcée, impliquant ainsi l'existence des races régionales. Un petit nombre d'échantillons prélevés en Floride, Californie et au Kenya montre que les B. tabaci rencontrées dans des pays différents peuvent être génétiquement différentes.

Keywords

Bemisia tabacigenetic variationelectrophoresisesterase
Type
Articles
Information
International Journal of Tropical Insect Science , Volume 12 , Issue 1-2-3: Current Topics in Tropical Entomology , June 1991 , pp. 225 - 230
Copyright
Copyright © ICIPE 1991

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References

REFERENCES

Ahmed, A. H. M., Elhag, E. A. and Bashir, N. H. H. (1987) Insecticide resistance in the cotton whitefly (Bemisia tabaci Genn.) in the Sudan Gezira. Trop. Pest Manage. 33, 62–72.CrossRefGoogle Scholar
Bird, J. (1982) Relationships between whiteflies and whitefly borne viruses. Workshop on Plant Virus Detection. University of Puerto Rico Experimental Station, pp. 1–9.Google Scholar
Cock, M. J. W. (ed.) (1986) Bemisia tabaci, A Literature Survey. FAO and CAB publication.Google Scholar
Costa, A. S. and Russel, L. M. (1975) Failure of Bemisia tabaci to breed on cassava plants in Brazil (Homoptera, Aleyrodidae). Ciencia E. Cultura 27, 388–390.Google Scholar
Devonshire, A. L. (1977) The properties of a carboxylesterase from the peach-potato aphid Myzus persicae (Sulz.) and its role in conferring insecticide resistance. Biochem. J. 167, 675–683.CrossRefGoogle ScholarPubMed
Devonshire, A. L. and Moores, G. D. (1982) A carboxylesterase with broad substrate specificity causes organophosphorous, carbamate and pyrethroid resistance in peach-potato aphids (Myzus persicae). Pest. Biochem. Physiol. 18, 235–246.CrossRefGoogle Scholar
Dittrich, V., Hassan, S. O. and Ernst, G. H. (1985) Sudanese cotton and the whitefly: a case study of the emergence of a new primary pest. Crop Prot. 4, 161–176.CrossRefGoogle Scholar
Dittrich, V., Hassan, S. O. and Ernst, G. H. (1986) Development of a new primary pest of cotton in the Sudan: Bemisia tabaci, the whitefly. Agric. Ecosyst. Environ. 17, 137–142.CrossRefGoogle Scholar
Dittrich, V. (1987) Resistance and hormoligosis as driving forces behind pest outbreaks. In Rational Pesticide Use (Edited by Brent, K. Y. and Alein, A. K.), pp. 169–181, Cambridge Univ. Press.Google Scholar
Duffus, J. E. (1987) Whitefly transmission of plant viruses. In Current Topics in Vector Research (Edited by Harris, K. F.), pp. 73–91, Springer.Google Scholar
Gerling, D., Motro, U. and Horowitz, R. (1980) Dynamics of Bemisia tabaci (Gennadius) (Homoptera, Aleyrodidae) attacking cotton in the coastal plain of Israel. Bull. entomol. Res. 70, 213–219.CrossRefGoogle Scholar
Horowitz, A. R., Toscano, N. C., Youngman, R. R. and Georghiou, G. P. (1988) Synergism of insecticides with DEF in sweetpotato whitefly (Homoptera: Aleyrodidae). J. econ. Entomol. 81, 110–114.CrossRefGoogle Scholar
Jayaraj, S., Rangarajan, A. V., Murugesan, S., Santharam, G., Vijayaraghavan, S. and Thangaraj, D. (1986) Studies on the outbreak of whitefly Bemisia tabaci (Gennadius) on cotton in Tamil Nadu. In Resurgence of Sucking Pests (Edited by Jayaraj, S.), pp. 103–115, Tamil Nadu Agric. Univ., Coimbatore, India.Google Scholar
Martin, J. H. (1987) An identification guide to common whitefly pest species of the world (Homoptera: Aleyrodidae). Trop. Pest Manage. 33, 298–322.CrossRefGoogle Scholar
Mound, L. A. (1983) Biology and identity of whitefly vectors of plant pathogens. In Plant Virus Epidemiology (Edited by Plumb, R. T. and Thersh, J. M.), pp. 305–313. Blackwell Publ.Google Scholar
Mohanty, A. K. and Basu, A. N. (1986) Effect of host plant and seasonal factors on intraspecific variation in pupal morphology of the whitefly vector, Bemisia tabaci (Genn.) (Homoptera: Aleyrodidae). J. entomol. Res. 10, 19–26.Google Scholar
Narang, S. K., Kaiser, P. E. and Seawright, J. A. (1989) Dichotomous electrophoretic taxonomie key for identification of sibling species A, B and C of the Anopheles quadrimaculatus complex (Diptera, Culicidae). J. Med. Entomol. 26, 94–99.CrossRefGoogle Scholar
Pasteur, N. and Geoghiou, G. P. (1981) Filter paper test for rapid determination of phenotypes with high esterase activity in organophosphate resistant mosquitoes. Mosquito News 41, 181–183.Google Scholar
Prabhaker, N., Coudriet, D. L. and Meyerdirk, D. E. (1985) Insecticide resistance in the sweetpotato whitefly Bemisia tabaci (Homoptera, Aleyrodidae). J. econ. Entomol. 78, 748–752.CrossRefGoogle Scholar
Prabhaker, N., Coudriet, D. L. and Meyerdirk, D. E. (1987) Discrimination of three whitefly species (Homoptera, Aleyrodidae) by electrophoresis of non-specific esterases. J. Appl. Entomol. 103, 447–451.CrossRefGoogle Scholar
Prabhaker, N., Coudriet, D. L. and Toscano, N. C. (1988) Effects of synergists on organophosphate and permethrin resistance in sweetpotato whitefly (Homoptera: Aleyrodidae). J. econ. Entomol. 81, 34–39.CrossRefGoogle Scholar
Robertson, I. A. D. (1987) The whitefly Bemisia tabaci (Gennadius) as a vector of African cassava mosaic virus at the Kenya coast, and ways in which the yield losses in cassava, Manihot esculenta Crantz caused by the virus can be reduced. Insect Sci. Applic. 8, 797–801.Google Scholar
Wool, D., Gerling, D. and Cohen, I. (1984) Electrophoretic detection of two endoparasite species, Encarsia lutea and Erethmocerus mundus, in the whitefly, Bemisia tabaci, (Genn.) (Hom., Aleyrodidae). Z. Angew. Entomol. 98, 276–279.CrossRefGoogle Scholar
Wool, D., Gerling, D., Nolt, G. L., Constantino, L. M., Belloti, A. C. and Morales, F. J. (1989) The use of electrophoresis for identification of adult whiteflies (Aleyrodidae: Homoptera) in Israel and Colombia. J. Appl. Entomol. 107, 344–350.CrossRefGoogle Scholar