Artículo
Abstract:
Correlation of a trait with environmental factors is a common means of measuring natural selection in natural populations If the same correlation is seen in independent groups of populations over a wide area, selection is then a likely explanation. Natural populations of T. pallidipennis (2n = 23. X0) polymorphic for 3-7 pencentric inversions in 4 medium-sized pairs - show altitudinal clines for 9 chromosome sequences over a wide area in Argentina. Joint analysis has shown correlations with latitude and longitude. In order to identify the climatic variables responsible for this clinal variation, 7 populations sited on an altitudinal gradient were scored for inversion frequency. Multiple regression analyses among chromosome frequencies and environmental variables do not only confirm the consistency of altitudmal gradients for all sequences but also identify minimum temperature (Tmin) as the main climatical variable responsible for this pattern, to such extent that populations with extreme Tmm values are monomorphic. In addition, some sequences are correlated with humidity. These results do not only reinforce the hypothesis of a selective origin for cline maintenance but are also a new example of monomorphism associated to marginal environments. Three inversions (4AI, 7SM2, 8SM4) correlate simultaneously with altitude, latitude, and minimum temperature; two other inversions (6M and 8SM4) correlated with longitude and humidity, because this variable decreases westard in Argentina. The identification of the causes of clinal variation leads to a predictive pattern of inversion distribution for still unexplored regions.
Registro:
| Documento: | Artículo |
| Título: | An adaptive pattern of inversion polymorphisms in Trimerotropis pallidipennis (Orthoptera): Correlation with environmental variables: An overall view |
| Autor: | Colombo, P.C.; Confalonieri, V.A. |
| Filiación: | Laboratorio de Genética, Departamento de Ciencias Biologicas, Universidad de Buenos Aires, Buenos Aires, Argentina Departamento de Ciencias Biologicas, Universidad de Buenos Aires, 1428 Ciudad Universitaria, Buenos Aires, Argentina Consejo Nac. de Invest. Cie. y Tec., Argentina |
| Palabras clave: | altitude; argentina; article; chromosome; chromosome inversion; chromosome polymorphism; environmental factor; genetic selection; natural population; natural selection; nonhuman; orthoptera; pericentric chromosome inversion |
| Año: | 1996 |
| Volumen: | 125 |
| Número: | 2-3 |
| Página de inicio: | 289 |
| Página de fin: | 296 |
| Título revista: | Hereditas |
| Título revista abreviado: | Hereditas |
| ISSN: | 00180661 |
| CODEN: | HEREA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v125_n2-3_p289_Colombo |
Referencias:
- Anderson, P.R., Knibb, W., Oakeshott, J.G., Observation on the extent and temporal stability of latitudinal dines for alcohol dehydrogenase allozymes and four chromosome inversions in Drosophla melanagaster (1987) Genetica, 75, pp. 81-88
- Brussard, P.E., Geographic patterns and environmental gradients: The central-marginal model revisited (1984) Annu Rev. Ecol Syst., 15, pp. 24-64
- Carson, H.L., Genetic condition which promote or retard the formation of species (1959) Cold Spring Harb. Symp. Quant. Biol, 24, pp. 87-104
- Colombo, P.C., Chromosome polymorphisms affecting recombination and exophenotypic traits in Leptysma argentina (Orthoptera): A populational survey (1989) Heredity, 62, pp. 289-299
- Confalonieri, V.A., (1990) Estudios Citogenéticos e Isoenzimáticos Sobre Polimorfismos Cromosómicos en Acrididae Sudamericanos, , Ph. D. Thesis. Universidad de Buenos Aires
- Confalonieri, V.A., Inversion polymorphism and natural selection in Trimerotropis pallidipennis: Correlations with geographical variables (1994) Hereditas, 121, pp. 79-86
- Confalonieri, V.A., Colombo, P.C., Inversion polymorphisms in Trimerotropis pallidipennis (Orthoptera): Clinal variation along an altitudinal gradient (1989) Heredity, 62, pp. 107-112
- Confalonieri, V.A., Remis, M.I., Analysis of RAPD Variation in Natural Populations of Trimerotopis Pallidipennis: A Comparison with Chromosome and Enzymatic Polymorphisms, , Submitted
- Da Cunha, A.B., Dobzhansky, T.H., A further study of chromosomal polymorphism in Drosophila wilistoni in relation to environment (1954) Evolution, 8, pp. 119-134
- Endler, J.A., (1986) Natural Selection in the Wild, , Princeton University Press. Princeton, New Jersey
- Goni, B., De Vaio, E., Beltrami, M., Leira, M., Crivel, M., Panzera, F., Castellanos, P., Basso, A., Geographic patterns of chromosomal variation in populations of the grasshopper (Trimerotropis pallidipennis) from southern Argentina (1985) Can. J. Genet Cytol., 27, pp. 259-271
- Hewitt, G.M., (1979) Animal Cytogenetics, Vol. 3. Insecta I Orthoptera, 3. , B. JOHN (ed ). - Gebrüder Borntraeger. Berlin Stuttgart
- John, B., The role of chromosome change in the evolution of orthopteroid insects (1983) Chromosomes in the Evolution of Eukaryotic Groups, 1, pp. 1-114. , (eds. A K. SHARMA and A. N SHARMA.), C. R C. Press. Florida
- Knibb, W.R., Chromosome inversion polymorphisms in Drosophila meilanogaster II Geographic dines and climatic associations m Australasia, North America and Asia (1982) Genetica, 58, pp. 213-221
- Matrajt, M., Confalonieri, V.A., Vilardi, J.C., Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient (1996) Heredity, 75. , in press
- Vaio, E., De Goni, B., Rev, C., Chromosome polymorphisms in populations of the grasshopper Trimerotropis pallidipennis from southern Argentina (1979) Chromosoma, 71, pp. 371-386
- Wallner, W.E., Factors affecting insect population dynamics: Differences between outbreak and non-outbreak species (1987) Annu. Rev. Entomol, 32, pp. 317-340
- White, M.J.D., (1973) Animal Cytology and Evolution. 3rd Edition, , Cambridge Unit. Press, London
Citas:
---------- APA ----------
Colombo, P.C. & Confalonieri, V.A. (1996) . An adaptive pattern of inversion polymorphisms in Trimerotropis pallidipennis (Orthoptera): Correlation with environmental variables: An overall view. Hereditas, 125(2-3), 289-296.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v125_n2-3_p289_Colombo [ ]
---------- CHICAGO ----------
Colombo, P.C., Confalonieri, V.A. "An adaptive pattern of inversion polymorphisms in Trimerotropis pallidipennis (Orthoptera): Correlation with environmental variables: An overall view" . Hereditas 125, no. 2-3 (1996) : 289-296.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v125_n2-3_p289_Colombo [ ]
---------- MLA ----------
Colombo, P.C., Confalonieri, V.A. "An adaptive pattern of inversion polymorphisms in Trimerotropis pallidipennis (Orthoptera): Correlation with environmental variables: An overall view" . Hereditas, vol. 125, no. 2-3, 1996, pp. 289-296.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v125_n2-3_p289_Colombo [ ]
---------- VANCOUVER ----------
Colombo, P.C., Confalonieri, V.A. An adaptive pattern of inversion polymorphisms in Trimerotropis pallidipennis (Orthoptera): Correlation with environmental variables: An overall view. Hereditas. 1996;125(2-3):289-296.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v125_n2-3_p289_Colombo [ ]
