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Abstract:

Leptysma argentina bears both a polymorphic centric fusion between telocentrics 3 and 6 (fusion 3/6) and a fixed one that produced the large metacentric 1 (fusion 1). A complex of phenomena, all of them leading to a general decrease in total recombination, are associated with fusion 3/6, namely: a) reduction of two independent linkage groups into one; b) intrachromosome adjustement of chiasma frequency to a minimal level, together with a strict distal localisation, and c) interchromosome effects, such as i) decrease in total mean cell chiasma frequency; ii) decrease in interstitial and proximal chiasma frequency, and iii) decrease in between-cell variance. On the other hand, chiasma distribution in the metacentric 1 seems to be irrestricted, et least when compared to the rigid localisation in the 3/6 metacentric of fusion 3/6 carriers. Therefore, it is suggested that the intrachromosome effects of fusion 3/6 on chiasma distribution are a consequence of adaptation to the polymorphic condition, although the possibility of a direct effect of the rearrangement cannot be excluded. Conversely, fusion 1 would not have passed through a long-lasting polymorphic situation (or else, it woud have suffered a second chiasma readjustament after definitive fixation). Finally, a model of chiasma formation in ‘Leptysma argentina’ is proposed, and the possibility is suggested that the interchromosome effects of fusion 3/6 are a result of increased chiasma interference. © 1990 Taylor & Francis Group, LLC.

Registro:

Documento: Artículo
Título:Effects of centric fusions on chiasma frequency and position in Leptysma Argentina (Acrididae: Orthoptera). II. Intra-and interchromosome effects
Autor:Colombo, P.C.
Filiación:Laboratorio de Genética, Departamento de Ciencias Biologicas, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina
Año:1990
Volumen:43
Número:2
Página de inicio:131
Página de fin:147
DOI: http://dx.doi.org/10.1080/00087114.1990.10796992
Título revista:Caryologia
Título revista abreviado:Caryologia
ISSN:00087114
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00087114_v43_n2_p131_Colombo

Referencias:

  • Arana, P., Santos, J.L., Giraldez, R., Chiasma interference and centromere coorientation in a spontaneous translocation heterozygote of Euchorthippus pulvinatus gallicus (Acrididae: Orthoptera) (1980) Chromosoma, 78, pp. 327-348
  • Bidau, C.J., (1984) Estudios citogenéticos en Orthoptera de Sudamérica, , Dr. Sc. Thesis, Universidad de Buenos Aires
  • Bidau, C.J., Hasson, E.R., Population cytology of Leptysma argentina Bruner (Leptysminae: Acrididae) (1984) Genetica, 62, pp. 161-175
  • 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) Genetica, 72, pp. 171-179
  • Colombo, P.C., Polimorfismos cromosómicos en Orthoptera (1990) Actas I Congreso Argentino de Entomología, , Tucumán (in press)
  • Diez, M., Puertas, M.J., Interchromosome effects on chiasma distribution due to translocations in Locusta migratoria (1984) Genetica, 62, pp. 189-194
  • Fox, D.P., The control of chiasma distribution in the locust Schistocerca gregaria (1973) Chromosoma, 43, pp. 289-328
  • Henderson, S.A., Chiasma distribution at diplotene in a locust (1963) Heredity, 18, pp. 173-190
  • Hewitt, G.M., An interchange that raises chiasma frequency (1967) Chromosoma, 21, pp. 285-295
  • Hewitt, G.M., (1979) Animal cytogenetics. 3, Insecta. 1. Orthoptera, , B. John, Gebrueder Borntraeger, Berlin–Stuttgart
  • Hewitt, G.M., Schroeter, G.L., Population cytology of the genus Oedaleonotus. I. The karyotypic fades of Oedaleonotus enigma (1968) Chromosoma, 25, pp. 121-140
  • John, B., Freeman, M., Causes and consequences of Robertsonian change (1975) Chromosoma, 52, pp. 123-136
  • John, B., Freeman, M., The cytogenetic system of grasshoppers and locusts. III. The genus Tolgadia (Oxyinae: Acrididae) (1976) Chromosoma, 55, pp. 105-119
  • Jones, G.H., Chiasmata (1987) Meiosis, , P. Moens, Academic Press, London, New York, San Francisco
  • Lucchesi, J.C., Interchromosomal effects (1976) The genetics and biology of Drosophila, , M. Ashburner and E. Novitski, Academic Press, London, New York, San Francisco
  • Lucchesi, J.C., Suzuki, D.T., The interchromosomal control of recombination (1968) Ann. Rev. Genet., 2, pp. 53-86
  • Mather, K., Crossing over (1938) Biol. Rev. Cambridge Philos. Soc., 13, pp. 252-292
  • Mesa, A., Los cromosomas de algunos acidoideos uruguayos (Orthoptera–Caelifera–Acridoidea) (1956) Agros (Montevideo), 141, pp. 32-45
  • Sáez, F.A., Pérez Mosquera, G., Citogenética del género Dichroplus (Orthoptera: Acridi- dae) (1971) Rec. Adelantos en Biología, Cong. Arg. Cs. Biol., 5, pp. 11-20
  • Scheffé, H., (1959) The analysis of variance, , Wiley, New York
  • Schultz, J., Redfield, H., Interchromosomal effects on crossing over in Drosophila (1951) Cold Spring Harb. Symp. Quant. Biol., 16, pp. 175-197
  • Snedecor, G.W., Statistical methods (1956) 5th ed., Iowa State Univ. Press, Ames, Iowa
  • Southern, D.I., Chiasma distribution in Truxaline grasshoppers (1967) Chromosoma, 22, pp. 169-191
  • Sybenga, J., Meiotic configurations (1975) Monogr. Theor. Appl. Genet., 1. , Springer, Berlin–Heidelberg–New York
  • Teoh, S.B., Yong, H.S., A spontaneous centric fusion heterozygote in the tropical grasshopper Valanga nigrocomis (Burmeister) (1983) Caryologia, 36, pp. 165-173
  • White, M.J.D., (1973) Animal cytology and evolution, , 3rd. ed., Cambridge Univ. Press, London
  • White, M.J.D., Morley, F.H.W., Effects of pericentric rearrangements on recombination in grasshoppers (1955) Genetics, 40, pp. 604-619
  • Williamson, J.H., Interchromosomal effects of autosomal translocations on recombination in Drosophila melanogaster (1966) Genetics, 54, pp. 1431-1440

Citas:

---------- APA ----------
(1990) . Effects of centric fusions on chiasma frequency and position in Leptysma Argentina (Acrididae: Orthoptera). II. Intra-and interchromosome effects. Caryologia, 43(2), 131-147.
http://dx.doi.org/10.1080/00087114.1990.10796992
---------- CHICAGO ----------
Colombo, P.C. "Effects of centric fusions on chiasma frequency and position in Leptysma Argentina (Acrididae: Orthoptera). II. Intra-and interchromosome effects" . Caryologia 43, no. 2 (1990) : 131-147.
http://dx.doi.org/10.1080/00087114.1990.10796992
---------- MLA ----------
Colombo, P.C. "Effects of centric fusions on chiasma frequency and position in Leptysma Argentina (Acrididae: Orthoptera). II. Intra-and interchromosome effects" . Caryologia, vol. 43, no. 2, 1990, pp. 131-147.
http://dx.doi.org/10.1080/00087114.1990.10796992
---------- VANCOUVER ----------
Colombo, P.C. Effects of centric fusions on chiasma frequency and position in Leptysma Argentina (Acrididae: Orthoptera). II. Intra-and interchromosome effects. Caryologia. 1990;43(2):131-147.
http://dx.doi.org/10.1080/00087114.1990.10796992