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Abstract:

The South American fruit fly Anastrepha fraterculus (Wiedemann) is distributed from Mexico to northern and central Argentina. It is a polyphagous species using diverse fruit from wild and cultivated tree or shrub species as feeding and breeding sites. During larval stages, the environment is discontinuous, because the larvae are restricted to the fruit where their eggs were laid. This population structure should profoundly influence the distribution of genetic variation and the modes of action of adaptive mechanisms. During the adult stage, in contrast, the population is not structured. In the current work we analyze the genetic structure in an Argentine population (Yuto) among attacked fruits at 4 enzyme loci. The results differed from the expected for a random mating population in the genotypic frequency distribution, the effective inbreeding coefficients, and the correlation between allelic and nonallelic variant frequencies. The most plausible explanation is that populations of this species may include heterogeneous groups of individuals having different origins as the species undergoes host shifts throughout the year.

Registro:

Documento: Artículo
Título:Analysis of the genetic structure of a natural population of Anastrepha fraterculus (Diptera: Tephritidae)
Autor:Alberti, A.C.; Calcagno, G.; Saidman, B.O.; Vilardi, J.C.
Filiación:Depto. Cle Cie. Biológicas, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:Allozymes; Anastrepha fraterculus; Population structure; fly; genetic structure; population genetics; population structure; Argentina; South America; Anastrepha fraterculus; Diptera; Tephritidae
Año:1999
Volumen:92
Número:5
Página de inicio:731
Página de fin:736
DOI: http://dx.doi.org/10.1093/aesa/92.5.731
Título revista:Annals of the Entomological Society of America
Título revista abreviado:Ann. Entomol. Soc. Am.
ISSN:00138746
CODEN:AESAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00138746_v92_n5_p731_Alberti

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Citas:

---------- APA ----------
Alberti, A.C., Calcagno, G., Saidman, B.O. & Vilardi, J.C. (1999) . Analysis of the genetic structure of a natural population of Anastrepha fraterculus (Diptera: Tephritidae). Annals of the Entomological Society of America, 92(5), 731-736.
http://dx.doi.org/10.1093/aesa/92.5.731
---------- CHICAGO ----------
Alberti, A.C., Calcagno, G., Saidman, B.O., Vilardi, J.C. "Analysis of the genetic structure of a natural population of Anastrepha fraterculus (Diptera: Tephritidae)" . Annals of the Entomological Society of America 92, no. 5 (1999) : 731-736.
http://dx.doi.org/10.1093/aesa/92.5.731
---------- MLA ----------
Alberti, A.C., Calcagno, G., Saidman, B.O., Vilardi, J.C. "Analysis of the genetic structure of a natural population of Anastrepha fraterculus (Diptera: Tephritidae)" . Annals of the Entomological Society of America, vol. 92, no. 5, 1999, pp. 731-736.
http://dx.doi.org/10.1093/aesa/92.5.731
---------- VANCOUVER ----------
Alberti, A.C., Calcagno, G., Saidman, B.O., Vilardi, J.C. Analysis of the genetic structure of a natural population of Anastrepha fraterculus (Diptera: Tephritidae). Ann. Entomol. Soc. Am. 1999;92(5):731-736.
http://dx.doi.org/10.1093/aesa/92.5.731