Meiotic studies in Acanonicus hahni (Stål) (Coreidae, Heteroptera) I. Behaviour of univalents in desynaptic individuals
Male meiosis was studied in a population of Acanonicus hahni (Stål), and nine of the sixteen individuals analyzed showed desynapsis. The frequency of univalents varied from one to seven percent in eight of them, while in the ninth the percentage of cells with univalents was higher (12%). The univale...
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Kluwer Academic Publishers
1990
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| LEADER | 05922caa a22005297a 4500 | ||
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| 008 | 190411s1990 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-0003062155 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
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| 100 | 1 | |a Papeschi, A.G. | |
| 245 | 1 | 0 | |a Meiotic studies in Acanonicus hahni (Stål) (Coreidae, Heteroptera) I. Behaviour of univalents in desynaptic individuals |
| 260 | |b Kluwer Academic Publishers |c 1990 | ||
| 270 | 1 | 0 | |m Papeschi, A.G.; Laboratorio de Genética, Depto, de Ciencias Biológicas, FCEN, UBA, Intendente Güiraldes y Costanera Norte, Buenos Aires, 1428, Argentina |
| 506 | |2 openaire |e Política editorial | ||
| 504 | |a Colombo, P.C., Bidau, C.J., Estudios cromosómicos en heterópteros argentinos. I. Los cromosomas meióticos en cinco especies de Coreidae (1985) Physis, Secc. C, 43 (104), pp. 29-40 | ||
| 504 | |a Diez, M., Puertas, M.J., Chiasma distribution in asynaptic Locusta migratoria (1981) Chromosoma, 84, pp. 431-437 | ||
| 504 | |a John, B., Henderson, S.A., Asynapsis and polyploidy in Schistocerca paranensis (1962) Chromosoma, 13, pp. 111-147 | ||
| 504 | |a John, B., Naylor, B., Anomalous chromosome behaviour in the germ line of Schistocerca gregaria (1961) Heredity, 16, pp. 187-198 | ||
| 504 | |a Kiauta, B., Studies on the germ cell chromosome cytology of some cytotaxonomically interesting or hitherto not studied Odonata from the autonomous region Friuli-Venezia, Giulia (Northern Italy) (1971) Atti Mus. civ. Stor. nat. Trieste, 27 (2), pp. 67-127 | ||
| 504 | |a Kiauta, B., Boyes, J.W., Cytology of ten Southamerican Libellulidae, with cytophylogenetic considerations on the genera Orthemis Hagen and Erythrodiplax Brauer (Odonata, Anisoptera) (1972) Genetica, 43, pp. 407-421 | ||
| 504 | |a Kiauta, B., Van Brink, J.M., Male chromosome complements of some Florida dragonflies, United States (1978) Odonatologica, 7 (1), pp. 15-25 | ||
| 504 | |a Manna, G.K., Chromosomes in evolution in Heteroptera (1984) Chromosomes in evolution in eukaryotic groups. Vol. II, pp. 189-225. , A. K., Sharma, A., Sharma, CRC Press, Florida | ||
| 504 | |a Mola, L.M., Agopian, S.S., Observations on the chromosomes of four Southamerican Libellulidae (Anisoptera) (1985) Odonatologica, 14 (2), pp. 115-125 | ||
| 504 | |a Nokkala, S., Restriction of kinetic activity of holokinetic chromosomes in meiotic cells and its structural basis (1985) Hereditas, 102, pp. 85-88 | ||
| 504 | |a Nokkala, S., The mechanisms behind the regular segregation of the m-chromosomes in Coreus marginatus L. (Coreidae, Hemiptera) (1986) Hereditas, 105, pp. 73-85 | ||
| 504 | |a Nokkala, S., The mechanisms behind the regular segregation of autosomal univalents in Calocoris quadripunctatus (Vil.) (Miridae, Hemiptera) (1986) Hereditas, 105, pp. 199-204 | ||
| 504 | |a Oksala, T., Zytologische Studien an Odonaten I. Chromosomenverhältnisse bei der Gattung Aeschna mit besonderer Berücksichtigung der postreduktionellen Teilung der Bivalente (1943) Ann. Acad. Sci. Fenn. (Ser. A IV), 4, pp. 1-64 | ||
| 504 | |a Papeschi, A.G., Bidau, C.J., Chromosome complement and male meiosis in four species of Belostoma Latreille (Belostomatidae, Heteroptera) (1985) Brazil. J. Genetics, 8 (2), pp. 249-261 | ||
| 504 | |a Rees, H., Distribution of chiasmata in an asynaptic locust (1957) Nature (Lond.), 180, p. 559 | ||
| 504 | |a Riley, R., Law, C.N., Genetic variation in chromosome pairing (1965) Adv. Genet., 13, pp. 57-114 | ||
| 504 | |a Tease, C., Jones, G.H., Chromosome specific control of chiasma formation in Crepis capillaris (1976) Chromosoma, 57, pp. 33-49 | ||
| 504 | |a Ueshima, N., (1979) Hemiptera II: Heteroptera. Animal Cytogenetics, Vol. 3, Insecta 6, , Borntraeger, Berlin-Stuttgart | ||
| 520 | 3 | |a Male meiosis was studied in a population of Acanonicus hahni (Stål), and nine of the sixteen individuals analyzed showed desynapsis. The frequency of univalents varied from one to seven percent in eight of them, while in the ninth the percentage of cells with univalents was higher (12%). The univalents auto-orientate at metaphase I in the center of the ring formed by autosomal bivalents and divide equationally at anaphase I; at metaphase II they show touch-and-go pairing, and lie in the center of the ring of autosomes. A desynaptic origin of the univalents is proposed, and the arrangement of the chromosomes in the first and second metaphase plate in the normal and desynaptic individuals is compared and discussed. The meiotic characteristics of these desynaptic individuals are also compared with those described in other insects with holocentric and monocentric chromosomes. It is suggested that any achiasmatic chromosome, whether a univalent, m or sex chromosome, will induce the formation of a ring and with some or all of them lying in its centre. © 1990 Kluwer Academic Publishers. |l eng | |
| 593 | |a Laboratorio de Genética, Depto, de Ciencias Biológicas, FCEN, UBA, Intendente Güiraldes y Costanera Norte, Buenos Aires, 1428, Argentina | ||
| 700 | 1 | |a Mola, L.M. | |
| 773 | 0 | |d Kluwer Academic Publishers, 1990 |g v. 80 |h pp. 31-38 |k n. 1 |p Genetica |x 00166707 |w (AR-BaUEN)CENRE-216 |t Genetica | |
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