Artículo
Abstract:
The adaptive significance of the chromosomal polymorphism of Drosophila buzzati has been studied by means of fitness component analysis in an original population from Argentina. The results show evidence of selection acting through pupal viability, longevity (adult viability) and fecundity on the second chromosome polymorphism, and through pupal viability and virility on the fourth chromosome polymorphism. Changes in chromosomal inversion frequencies throughout the life‐cycle suggested an endocyclic pattern of directional selection, which at first seems to be the only detectable mechanism responsible for the maintenance of the polymorphism. However, slow, long‐term frequency changes cannot be ruled out. The way in which endocyclic selection acts on this population is different from that in a colonized population previously studied; that is, different fitness components are involved in the maintenance of chromosomal polymorphism. The possible factors that may explain these differences are discussed. Copyright © 1991, Wiley Blackwell. All rights reserved
Registro:
| Documento: | Artículo |
| Título: | The evolutionary history of Drosophila buzzatii. XVI. Fitness component analysis in an original natural population from Argentina |
| Autor: | Hasson, E.; Vilardi, J.C.; Naveira, H.; Fanara, J.J.; Rodriguez, C.; Reig, O.A.; Fontdevila, A. |
| Filiación: | G.I.B.E. Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina Lab Genética, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina Departamento de Genética, Universidad Autónoma de Barcelona, Bellaterra, Barcelona, 08193, Spain |
| Palabras clave: | Chromosomal polymorphism; Drosophila; Endocyclic selection; Fitness; Natural populations; chromosomal polymorphism; fitness; Argentina; Drosophila buzzatii |
| Año: | 1991 |
| Volumen: | 4 |
| Número: | 2 |
| Página de inicio: | 209 |
| Página de fin: | 225 |
| DOI: | http://dx.doi.org/10.1046/j.1420-9101.1991.4020209.x |
| Título revista: | Journal of Evolutionary Biology |
| Título revista abreviado: | J. Evol. Biol. |
| ISSN: | 1010061X |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1010061X_v4_n2_p209_Hasson |
Citas:
---------- APA ----------
Hasson, E., Vilardi, J.C., Naveira, H., Fanara, J.J., Rodriguez, C., Reig, O.A. & Fontdevila, A. (1991) . The evolutionary history of Drosophila buzzatii. XVI. Fitness component analysis in an original natural population from Argentina. Journal of Evolutionary Biology, 4(2), 209-225.http://dx.doi.org/10.1046/j.1420-9101.1991.4020209.x
---------- CHICAGO ----------
Hasson, E., Vilardi, J.C., Naveira, H., Fanara, J.J., Rodriguez, C., Reig, O.A., et al. "The evolutionary history of Drosophila buzzatii. XVI. Fitness component analysis in an original natural population from Argentina" . Journal of Evolutionary Biology 4, no. 2 (1991) : 209-225.http://dx.doi.org/10.1046/j.1420-9101.1991.4020209.x
---------- MLA ----------
Hasson, E., Vilardi, J.C., Naveira, H., Fanara, J.J., Rodriguez, C., Reig, O.A., et al. "The evolutionary history of Drosophila buzzatii. XVI. Fitness component analysis in an original natural population from Argentina" . Journal of Evolutionary Biology, vol. 4, no. 2, 1991, pp. 209-225.http://dx.doi.org/10.1046/j.1420-9101.1991.4020209.x
---------- VANCOUVER ----------
Hasson, E., Vilardi, J.C., Naveira, H., Fanara, J.J., Rodriguez, C., Reig, O.A., et al. The evolutionary history of Drosophila buzzatii. XVI. Fitness component analysis in an original natural population from Argentina. J. Evol. Biol. 1991;4(2):209-225.http://dx.doi.org/10.1046/j.1420-9101.1991.4020209.x
