Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Leptysma argentina is polymorphic for a centric fusion between pairs 3 and 6 of the basic complement, for interstitial (Si) and proximal (Sp) supernumerary segments in the smallest member of the complement, and for a B-chromosome. Fusion 3/6 is associated with several effects that would lead to a drastic reduction of recombination (Colombo 1987, 1988). Nine populations from the Argentine provinces of Buenos Aires, Entre Ríos and Santa Fe were analysed for total (T), proximal (P), interstitial (I) and distal (D) chiasma frequencies, and for the morphometrical characters tegmina length, total length, femur length, tibia length, thorax length and thorax height. There was a strong negative correlation of T, P and I frequencies, and a significant positive correlation of D, with fusion 3/6 frequency. Fusion carriers were significantly bigger than basic homozygotes, leading to highly significant correlations of all morphometrical variables with fusion frequency. The frequencies of the fusion, segment Si and the B-chromosome follow a geographical pattern. The uneven distribution of the fusion is explained by effects on several exo- and endophenotypic traits. The nonrandom distribution of the B-chromosome is attributed to differential tolerance under differing chromosomal, genetical and/or ecological environments. No significant effects were detected for segments but Si is geographically widespread, arguing against its neutrality, while the low frequency and even frequency distribution of Sp suggests maintenance by mutation. © 1989, The Genetical Society of Great Britain.

Registro:

Documento: Artículo
Título:Chromosome polymorphisms affecting recombination and exophenotypic traits in Leptysma argentina (Orthoptera): A populational survey
Autor:Colombo, P.C.
Filiación:Laboratories de Genética, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Intendente Güiraldes y Costanera Norte, Buenos Aires, 1428, Argentina
Año:1989
Volumen:62
Número:3
Página de inicio:289
Página de fin:299
DOI: http://dx.doi.org/10.1038/hdy.1989.42
Título revista:Heredity
Título revista abreviado:Heredity
ISSN:0018067X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0018067X_v62_n3_p289_Colombo

Referencias:

  • Amedegnato, C., Les genres d’acridiens neotropicaux. Leur classification par families, sous families et tribus (1974) Acricla, 3, pp. 193-204
  • Amoedo, D., Estudio citogenético en Leptysma argentina (Orthoptera-Acrididae-Leptysminae) (1979) Adas IV Congreso Latinoamericano De Genética (Mendoza, Argentina), 1, p. 9
  • Bidau, C.J., (1984) Estudios Citogeneticos En Orthoptera De Sudamerica, , Ph.D. Thesis, Universidad de Buenos Aires
  • Bidau, C.J., Hasson, E.R., Population cytology of Leptysma argentina Bruner. (Leptysminae: Acrididae) (1984) Genelica, 62, pp. 161-175
  • Bkussard, P.E., Geographic patterns and environmental gradients: The central marginal model revisited (1984) Ann. Rev. Ecol. Syst., 15, pp. 24-64
  • Carson, H.L., The genetic characteristics of marginal populations of Drosophila (1955) Cold Spring Harb. Symp. Quant. Biol., 20, pp. 276-287
  • Carson, H.L., Response to selection under different conditions of recombination in Drosophila (1958) Cold Spring Harb. Symp. Quant. Biol., 23, pp. 291-306
  • Charlesworth, B., Charles Worth, D., Genetic variation and recombination in Drosophila. II. Genetic analysis of a high recombination stock (1985) Heredity, 54, pp. 85-98
  • Chinnici, J.P., Modification of recombination frequency in Drosophila. II. The polygenic control of crossing over (1971) Genetics, 69, pp. 85-96
  • Colombo, P.C., Effects of centric fusions on chiasma frequency and position in Leptysma argentina (Acrididae: Orthoptera). I. Spontaneous and stable polymorphic centric fusions (1987) Genelica, 72, pp. 171-179
  • Colombo, P.C., (1988) Polimorfismos Cromosoinicos En Orthoptera. Actas I Congreso Argentino De Entomologia, , (in press)
  • Colombo, P.C., Effects of B-chromosomes on recombination in Cylindrotettixobscurus (Leptysminae: Acrididae) (1988) Caryologia, , (in press)
  • Dobzhansky, T., Hunter, A.S., Pavlovsky, O., Spassky, B., Wallace, B., Genetics of natural populations XXXI. Genetics of an isolated marginal population of Drosophila pseudoobscura (1963) Genetics, 48, pp. 98-103
  • Gale, M.D., Rees, H., Genes controlling chiasma frequency in Hordeum (1970) Heredity, 25, pp. 393-410
  • Hewiit, G.M., (1979) Animal Cytogenetics, 3. , John, B. (ed.), Insecta 1. Orthoptera. Gebrueder Borntraeger, Berlin-Stuttgart
  • Hewitt, G.M., John, B., Inter-population sex-chromosome polymorphism in the grasshopper Podisma pedestris. II. Population parameters (1972) Chromosoma, p. 37
  • Hewiit, G.M., Schroeter, G.L., Population cytology of the genus Oedaleonotus. The karyotypic facies of Oedaleonotus enigma Scudder (1968) Chromosoma, 25, pp. 121-140
  • John, B., Chromosome change and evolutionary change: A critique (1981) Evolution and Speciation, pp. 23-51. , Atcheley, W. R. and Woodruff, D. S. (eds), Cambridge University Press, Cambridge
  • 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. , Sharma, A. K. and Sharma, A. M. (eds), C.R.C. Press, Florida
  • John, B., Appels, R., Contreras, N., Population cytogenetics of Atractomorpha similis. II. Molecular characterisation of the distal C-polymorphisms (1986) Chromosoma, 94, pp. 45-58
  • John, B., Freeman, M., Causes and consequences of Robertsonian exchange (1975) Chromosoma, 52, pp. 123-136
  • Jones, R.N., Rees, H., (1982) B-Chromosomes, , Academic Press: London
  • Kidwell, M.G., Genetic change of recombination value in Drosophila melanogaster. I. Artificial selection for high and low recombination and some properties of recombination-modifying genes (1972) Genetics, 70, pp. 419-432
  • Lande, F.L., Effective deme size during long-term evolution estimated from rates of chromosomal rearrangement (1979) Evolution, 33, pp. 234-251
  • Lucchesi, J., Interehromosomal effects (1976) The Genetics and Biology of Drosophila, , Ashburner, M. and Novitski, E. (eds), Academic Press, London, New York and San Francisco
  • Remis, M.L., Vilardi, J.C., Meiotic behaviour and dosage effect of B-chromosomes on recombination in Dichroplus elongatus (Orthoptera: Acrididae) (1987) Caryologia, 39, pp. 287-301
  • Roberts, M.R., A revision of the tribe Leptysmini except the genus Cylindrotettix (Orthoptera: Acrididae: Leptysminae) (1978) Proc. Nat. Sci., 129, pp. 33-69. , Phil
  • Schluter, D., Price, T.D., Grant, P.R., Ecological character displacement in Darwin’s finches (1985) Science, 227, pp. 1059-1068
  • Shaw, D.D., Genetic and environmental components of chiasma control. II. The response to selection in Schistocerca (1972) Chromosoma, 37, pp. 297-308
  • Shaw, D.D., Genetic and environmental components of chiasma control. III. Genetic analysis of chiasma frequency variation in two selected lines of Schistocerca gregaria Forskal (1974) Chromosoma, 46, pp. 365-374
  • Sybenga, J., Meiotic Configurations (1975) Monogr. Theor. Appl. Genet., 1. , Berlin-Heidelberg-New York, Springer
  • Vilardi, J.C.D., Meiotic behaviour in a population of Dichroplus elongatus. (Orthoptera: Acrididae) (1985) Caryologia, 38, pp. 147-160
  • White, M.J.D., (1973) Animal Cytology and Evolution, , 3rd. edn. Cambridge University Press, London
  • White, M.J.D., Morley, F.H.W., Effects of pericentric rearrangements on recombination in grasshoppers (1955) Genetics, 40, pp. 604-619

Citas:

---------- APA ----------
(1989) . Chromosome polymorphisms affecting recombination and exophenotypic traits in Leptysma argentina (Orthoptera): A populational survey. Heredity, 62(3), 289-299.
http://dx.doi.org/10.1038/hdy.1989.42
---------- CHICAGO ----------
Colombo, P.C. "Chromosome polymorphisms affecting recombination and exophenotypic traits in Leptysma argentina (Orthoptera): A populational survey" . Heredity 62, no. 3 (1989) : 289-299.
http://dx.doi.org/10.1038/hdy.1989.42
---------- MLA ----------
Colombo, P.C. "Chromosome polymorphisms affecting recombination and exophenotypic traits in Leptysma argentina (Orthoptera): A populational survey" . Heredity, vol. 62, no. 3, 1989, pp. 289-299.
http://dx.doi.org/10.1038/hdy.1989.42
---------- VANCOUVER ----------
Colombo, P.C. Chromosome polymorphisms affecting recombination and exophenotypic traits in Leptysma argentina (Orthoptera): A populational survey. Heredity. 1989;62(3):289-299.
http://dx.doi.org/10.1038/hdy.1989.42