Abstract
The amount of DNA per nucleus and the dry mass of isolated nuclei does not vary significantly between the six diploid species investigated. No differences were found either between tetraploid species or between hexaploids. Between the diploids, tetraploids and hexaploids taken as groups there was respectively a 1, 2 and 3 ratio maintained for the amount of DNA. For chromosome volume significant differences were found between the tetraploids but not in 2x or 6x series. Correlations are shown between chromosome volume, nuclear DNA content and nuclear dry mass. In polyploids the nuclear dry mass is less than expected from the values obtained for the diploids.
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References
Barer, R.: The interference microscope in qualitative cytology. Supplement to the Baker interference microscope, 2nd edit. London and Croydon: C. Baker (Lond.) 1956.
Bullen, M. R.: Genetic control of chromosome in interspecific hybrids. Ph.D. Thesis, University of Wales, Aberystwyth 1969.
Davies, H. G.: The determination of mass and concentration by microscope interphotometry. In: General cytochemical methods. I. New York: Academic Press 1958.
Ichikawa, S., Sparrow, A. H.: Nuclear and interphase chromosome volumes of four Triticum species and of eight species from related genera. Wheat Inf. Serv. (Kyoto)23–24, 18–20 (1967).
Jones, R. N., Rees, H.: The influence of B-chromosomes upon the nuclear phenotype in rye. Chromosoma (Berl.)24, 158–176 (1968).
Ladizinsky, G.: Chromosome relationships between tetraploid (2n=28) Avena murphyi and some diploid, tetraploid and hexaploid species of oats. Canad. J. Genet.2, 203–209 (1971).
Ladizinsky, G., Zohary, D.: Genetic relationships between diploids and tetraploids in series Eubarbatae of Avena. Canad. J. Genet. Cytol.10, 68–81 (1968).
McLeish, J.: Quantitative relationships between deoxyribonucleic and ribonucleic acid in isolated plant nuclei. Proc. roy. Soc. (Lond.) B158, 261–278 (1963).
McLeish, J., Sunderland, N.: Measurements of deoxyribonucleic acid (DNA) in higher plants by Feulgen photometry and chemical methods. Exp. Cell Res.24, 527–540 (1961).
Melnyk, J., Unrau, J.: Counting chromosomes in root tips form a large population of plants. Stain Technol.36, 327–328 (1961).
Nishiyama, I.: Cytogenetical studies in Avena. 1. Chromosome association in hybrids between Avena barbata Pott, and autotetraploids of Avena strigosa Schreb. Cytologia (Tokyo)7, 276–281 (1936).
Pegington, C., Rees, H.: Chromosome weights and measures in the Triticinae. Heredity25, 195–205 (1970).
Rajhathy, T.: Chromosomal differentiation and speciation in diploid Avena. Canad. J. Genet. Cytol.3, 372–377 (1961).
Rajhathy, T., Morrison, J. W.: Chromosome morphology in the genus Avena. Canad. J. Bot.37, 331–337 (1959).
Rajhathy, T., Sadasivaiah, R. S.: The chromosomes of Avena magna. Canad. J. Genet. Cytol.10, 385–389 (1968).
Rees, H., Cameron, F. M., Hazarika, M. H., Jones, G. H.: Nuclear variation between diploid angiosperms. Nature (Lond.)211, 828–830 (1966).
Rothfels, K., Sexsmith, E., Heimburger, M., Krause, M. O.: Chromosome size and DNA content of species of AnemoneL. and related genera (Ranunculaceae). Chromosoma (Berl.)20, 54–74 (1966).
Steer, M. W., Holden, J. H. W., Gunning, B. E. S.: Avena chloroplasts: species relationships and the occurrence of stromacentres. Canad. J. Genet. Cytol.1, 21–27 (1970).
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Contribution No. 20 from the Canada Agriculture Research Station, Ste Foy, P.Q.
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Bullen, M.R., Rees, H. Nuclear variation withinAvenae . Chromosoma 39, 93–100 (1972). https://doi.org/10.1007/BF00320593
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DOI: https://doi.org/10.1007/BF00320593