Abstract
Meiosis was studied in control and seed-irradiated materials of Lactuca sativa, cultivars Tom, Cos and Webbs, L. serriola from the wild, and Cichorium intybus. In meiosis of the M1 plants from irradiated seed, observations of univalent and multivalent formation, bridge formation at Anaphase I and II, micronucleus formation and persistence, and pollen fertility, were carried out, and compared with controls. Quantitative estimations of bridge formation were made in L. sativa Tom and Cos and in L. serriola, at anaphase I only. It was found that the frequency of anaphase I bridges and reduction of pollen fertility in the M1 and also M2 generation, were different for each variety or species; these could be sequenced radiation-resistant to sensitive in the order Tom, Cos and L. serriola.
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References
Ahmad, S., 1978. Radiation studies in cultivars of Cicer arietinum. Ph.D. Thesis, University of London.
Bowen, H. J., Cawse, P. A. & Smith, S. R., 1962. The effects of low doses of gamma radiation on plant yields. Int. J. of appl. Rad. Isot. 13: 487–492.
Cavazza, L., Guerrieri, G., Paucci, G. & Scarascia Mugnozza, G. T., 1965. Radiosensibilitità di sei specie orticole, Genet. agr. 19: 262.
Chatterjee, T. & Sharma, A. K., 1969. Cytotaxonomy of Cichorieac. Genetics 40: 577–590.
Corneanu, G. & Slapciu, G. H., 1971. Sensibilitate a la radiatti gamma a simintelor uscate di Lactuca sativa L. Soiul, ‘Polil Nord’. An. Biol., Med., Stiinte agric. Univ. Craiova [ser I, II-A]: Biol. Med., Stiinte agric. 2: 219–226.
Fujii, T. & Matsumura, S., 1958. Radiosensitivity in plants. I. Determination of LD50 in cultivated plants (Preli. Rep.) Jap. J. Genet. 33: 389–397.
Gaul, H., 1977. Mutagen effects in the first generation after seed treatment. Plant injury and lethality. In: Manual on Mutation Breeding, Tech. Rep. Ser. 119. FAO/IAEA, Vienna pp. 87–91.
Haber, A. H. & Luippold, H. J., 1959. Dormancy resulting from gamma irradiation of lettuce seeds. Int. J. Rad. Biol. 4: 317–327.
Haque, M. Z. & Godward, M. B. E. Comparison between two genera, species and cultivars in Lactuceae. Paper I karyotype analysis (in press, Cytologia).
Haque, M. Z. & Godward, M. B. E. Comparison between; two genera, species and cultivars in Lactuceae. Paper II. Effects of seed-irradiation on Chiasma frequency. (in press, Cytologia).
Haque, M. Z. & Godward, M. B. E. Comparison between two genera, species and cultivars in Lactuceae. Paper III. DNA amount and radiosensitivity. (in preparation).
Haque, M. Z. & Godward, M. B. E. Comparison between two genera, species and cultivars in Lactuceae. Paper IV. Effects of seed-irradiation on mitosis. (in preparation).
Hsiao, A. I. & Vidaver, W., 1974. Phytochrome-mediated germination responses in γ-irradiated lettuce seeds. Plant Physiol. 54: 72–75.
Jansen, K. R. & Stuessy, T. F., 1980. Chromosome counts of Compositae from Latin America. Am. J. Bot. 67: 585–594.
Jeffrey, C., 1966. Notes on Compositae. I. The Cichoriae in East Tropical Africa. Kew Bulletin 18: 427–486.
Jenkins, J. M.(Jr.), 1960. No new varieties from irradiated lettuce seed. Res. Fmg 108: 13.
Kaul, V. & Singh, D., 1972. Cytological studies in some members of Cichorieae (Compositae). Proc. 59th Indian Sci. Cong. III. Abstracts 59: 366.
Lindqvist, K., 1960a. Cytogenetic studies in the serriola group of Lactuca Hereditas 46: 75–15.
Lindqvist, K., 1960b. On the origin of cultivated lettuce. Hereditas 46: 319–350.
McCollum, G. D., 1953. Cytogenetic relationships of Lactuca serriola and L. sativa-M.S. Thesis. Washington State Univ.
Osborne, T. S., Lunden, A. O. & Constantin, M. J., 1963. Radiosensitivity of seeds. III. Effects of pre-irradiation humidity and gamma-ray dose on seeds from five botanical families. Rad. Bot. 3: 19–28.
Pap'Yan, N. M. & Nevzgodina, L. V., 1970. Influence of the gamma radiation dose rate on the cytogenetic effects in the irradiation of lettuce (Lactuca sativa) seeds and seedlings. Radiobiol. 10(5): 205–208.
Rick, C. M., 1953. Hybridization between chicory and endive. Proc. Am. Soc. hort. Sci. 61: 459–466.
Sax, K., 1955. The effects of ionizing radiation on plant growth. Am. J. Bot. 42: 360–364.
Tomb, A. S., Chambers, K. L., Kyhos, D. W., Powell, A. M. & Raven, P. H., 1978. Chromosome numbers in the Compositae, XI. Lactuceae. Am. J. Bot. 65: 717–721.
Valeva, S. A., 1960. Effect of γ-rays and neutrons on dried seeds of agricultural plants. Biofizika 5(3): 362–365.
Whitaker, T. W. & Jagger, I. C., 1939. Cytogenetic observations in Lactuca J. agr. Res. Washington 58: 297–306.
Yealy, L. P. & Stone, B. P., 1975. The effect of ionizing radiation on ribosomal RNA synthesis in Grand Rapid lettuce Seeds. Rad Bot. 15: 153–159.
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Haque, M.Z., Godward, M.B.E. Effects of seed-irradiation on meiosis in M1 plants of Lactuca and related plants. Genetica 65, 179–186 (1984). https://doi.org/10.1007/BF00122903
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DOI: https://doi.org/10.1007/BF00122903