Studies on chiasma distribution and chiasma movement in Zoniopoda tarsata (Orthoptera: Romaleidae)

A sample of 27 males of Zoniopoda tarsata from Argentina was studied cytologically. The three largest autosomal pairs and the X were characterized by the presence of interstitial C-bands. Chiasma position relative to the bands was analyzed at diplotene and diakinesis. The frequency of interstitial,...

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Autor principal: Vilardi, J.C
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Lenguaje:Inglés
Publicado: Kluwer Academic Publishers 1988
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100 1 |a Vilardi, J.C. 
245 1 0 |a Studies on chiasma distribution and chiasma movement in Zoniopoda tarsata (Orthoptera: Romaleidae) 
260 |b Kluwer Academic Publishers  |c 1988 
270 1 0 |m Vilardi, J.C.; Lab. Genética, Dpto. Cs. Biológicas, Fac. Cienias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, 1428, Argentina 
506 |2 openaire  |e Política editorial 
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504 |a Creighton, H.S., Mc Clintock, B., A correlation of cytological and genetical crossing-over in Zea mays (1931) Proceedings of the National Academy of Sciences, 17, pp. 492-497 
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504 |a Fox, D.P., The control of chiasma distribution in the locust Schistocerca gregaria (Forskal) (1973) Chromosoma, 43, pp. 289-328 
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504 |a Jones, G.H., A test of early terminalization of chiasmata in diplotene spermatocytes of Schistocerca gregaria (1977) Chromosoma, 63, pp. 287-294 
504 |a Jones, G.H., Giemsa C banding of rye meiotic chromosomes and the nature of terminal chiasmata (1978) Chromosoma, 66, pp. 45-57 
504 |a Jones, G.H., Tease, C., Analysis of exchanges in differentially stained meiotic chromosomes of Locusta migratoria after BrdU-substitution and FPG staining. IV. The nature of ‘terminal’ associations (1984) Chromosoma, 89, pp. 33-36 
504 |a Kanda, N., Kato, H., Analysis of crossing-over in mouse meiotic cells by BrdU labelling technique (1980) Chromosoma, 78, pp. 113-121 
504 |a Maguire, M.P., Direct cytological evidence for true terminalization of chiasmata in maize (1979) Chromosoma, 71, pp. 283-287 
504 |a Maguire, M.P., Chiasma maintenance and terminalization across a homoeologous bivalent segment (1981) Chromosoma, 82, pp. 107-112 
504 |a Mather, K., 1937. The determination of position in crossing-over. II. The chromosome length-chiasma frequency relation. Cytologia Fujii Jub. Vol., 514–526; Muller, H.J., The mechanism of crossing-over (1916) The American Naturalist, 50, p. 193 
504 |a Peacock, W.J., Replication, recombination and chiasmata in Goniaea australasiae (Orthoptera: Acrididae) (1970) Genetics, 65, pp. 593-617 
504 |a Polani, P.E., Crolla, J.A., Seller, M.J., Moir, F., Meiotic crossing over exchange in the female mouse visualized by BUdR substitution (1979) Nature, 278, pp. 348-349 
504 |a Swanson, C.P., (1957) Cytology and cytogenetics, , Prentice-Hall, Inc., Englewood Cliffs, New York 
504 |a Sybenga, J., (1975) Meiotic configurations. Monogr. theor. appl. Genet., vol. 1, , R., Frankel, M., Grossman, D., de Zeeuw, Springer, Berlin-Heidelberg-New York 
504 |a Tease, C., Cytological detection of crossing-over in BUdR substituted meiotic chromosomes using the fluorescence plus Giemsa technique (1978) Nature, 272, pp. 823-824 
504 |a Tease, C., Jones, G.H., Analysis of exchanges in differentially stained meiotic chromosomes of Locusta migratoria after brdU substitution and FPG staining. I. Crossover exchanges in monochiasmate bivalents (1978) Chromosoma, 69, pp. 163-178 
504 |a Vilardi, J.C., Chromosome polymorphisms and chiasma frequency in two populations of Staurorhectus longicornis (Orthoptera: Acrididae) (1984) CYTOLOGIA, 49, pp. 513-528 
504 |a Vilardi, J.C., Meiotic behaviour in a population of Dichroplus elongatus (Orthoptera: Acrididae) (1985) Caryologia, 38, pp. 147-160 
504 |a Vilardi, J.C., Parallel polymorphism for interstitial C-bands and B chromosomes in Zoniopoda tarsata (Orthoptera: Romaleidae) (1987) Caryologia, 39, pp. 365-380 
504 |a White, M.J.D., Telomeres and terminal chiasmata, a reinterpretation (1959) Univ. Texas Publ., 5914, pp. 107-111 
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520 3 |a A sample of 27 males of Zoniopoda tarsata from Argentina was studied cytologically. The three largest autosomal pairs and the X were characterized by the presence of interstitial C-bands. Chiasma position relative to the bands was analyzed at diplotene and diakinesis. The frequency of interstitial, terminal and total chiasmata per cell was studied for the whole autosomal bivalent set, analysing the variations between stages and among individuals. The comparison of interstitial chiasma frequencies between stages and among individuals and the study of chiasma position relative to the bands in pairs 1, 2 and 3 indicated that chiasma distribution varied from diplotene to diakinesis. Therefore, terminalization does exist in this species and the movement may occur towards the centromere. The frequency of terminal associations at diplotene showed a high negative correlation (r=-0.89; p<10-5) with the number of interstitial chiasmata. This correlation would not be expected if the two kinds of association were produced by different (independent) mechanisms. Consequently, terminal associations were considered genuine chiasmata. The correlation between interstitial and total chiasmata was very much lower then the former (r=0.39; p=0.04). This fact, besides the relatively low variation for chiasma number, observed among individuals suggests that in this species the number of interestitial chiasmata, which are the most important in controlling the genetical recombination, is mainly regulated by changes in chiasma distribution, while variations in total chiasma frequency are of much lower magnitude. © 1988 Kluwer Academic Publishers.  |l eng 
593 |a Lab. Genética, Dpto. Cs. Biológicas, Fac. Cienias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, 1428, Argentina 
773 0 |d Kluwer Academic Publishers, 1988  |g v. 76  |h pp. 73-80  |k n. 1  |p Genetica  |x 00166707  |w (AR-BaUEN)CENRE-216  |t Genetica 
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