Branka JURKOVIĆ-BEVILACQUA
DEGENERATION OF OVULES AFTER INTERSPECIFIC HYBRIDIZATION BETWEEN EUROPEAN BLACK PINE AND SCOTS PINE [Abstract]
S. PETRIĆEVIĆ, M. VIDAKOVIĆ, I. BILIĆ and Ž. BORŽAN
IMMUNOLOGICAL IDENTITY OF POLLEN-WALL PROTEINS IN SOME INCOMPATIBLE PINE SPECIES [Abstract]
S. PETROVIĆ
DETERMINATION OF CHROMOSOMES INVOLVED IN TRANSLOCATION BY STUDING THE MEIOSIS OF F, HYBRIDS BETWEEN DIFFERENT WHEAT VARIETIES AND CHINESE SPRING ANEUPLOIDS [Abstract]
Ljiljana VAPA and Katarina BOROJEVIĆ
CHARACTERISTICS OF MUTATIONS IN THE POPULATION OF TRITICUM AESTIVUM VULGARE TREATED WITH EMS [Abstract]
Emilija STOJIMIROVIĆ, B. GARZIČIĆ, Branislava AJDARIĆ i Danica KORAĆ
THE GENETIC RISK OF CYTOSTATIC THERAPY. THE EFFECT OF IMURAN ON HUMIAN CHROMOSOMES [Abstract]
Emilija STOJIMIROVIĆ, Branislava AJDARIĆ, Danica KORAĆ and B. GARZIČIĆ
THE CONTEMPORARY TESTING OF THE HARMFUL EFFECT OF CYTOSTATICS ON THE HUMAN GENOM. THE RESULTS OF EXAMINATION OF BREAKAGE EFFECT OF IMURAN [Abstract]
Z. TASIĆ, M. JANKOVIĆ and Branislava AJDARIĆ
THE PRESENCE OF FLUORESCENT MORPHOLOGICAL VARIANTS IN THE SCREENING TEST FOR Y BODY IN THE INTERFASE NUCLEUS [Abstract]
T. HRANUELI, Zora TOMAN, Vera SAKE i Marija ALAČEVIĆ
THE EFFECT OF CAFFEINE ON THE REPAIR AFTER UV IRRADIATION UNDER DIFFERENT CONDITIONS IN STREPTOMYCES RIMOSUS R7 [Abstract]
B. WALLACE
RECENT THOUGHTS ON GENE CONTROL AND THE FITNESS OF POPULATIONS [Abstract]
Published in „GENETIKA“ Vol. 9, No.3 (1977), pp. 263-270
© 1977 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
Original scientific paper
DEGENERATION OF OVULES AFTER INTERSPECIFIC HYBRIDIZATION BETWEEN EUROPEAN BLACK PINE AND SCOTS PINE
Branka JURKOVIĆ-BEVILACQUA
Katedra za šumarsku genetiku i dendrologiju, Šumarski fakultet, 41000 Zagreb, Jugoslavija
Abstract
Jurković-Bevilacqua, B. (1977): Degeneration of ovules after interspecific hybridization between European Black Pine and Scots Pine. - Genetika, Vol. 9, No. 3, 263-270.
Species of European Black Pine and Scots Pine cannot be crossed successfully, no hybrids can be obtained from them. That means that they are mutually incompatible. In order to obtain the mentioned hybrids hybridization was performed with the pollen of the opposite species which was preliminarily irradiated with gamma rays. The doses were 5kR and 50kR. The young conelets were collected in 11 intervals of the first growing period (2-12 weeks following pollination). Through microscopic analysis of the histological slides of the ovules were noticed all the types of degeneration from the earliest type when the upper part of the nucellus is full of necrotized cells to »shrivelling« ovules. The results obtained show no difference between the European Black Pine and the Scots Pine in the type of degeneration. The only difference is in the time of the beginning of the degeneration, i.e. the European Black Pine ovules were degenerated 2 weeks earlier than those of the Scots Pine.
Published in „GENETIKA“ Vol. 9, No.3 (1977), pp. 271-280
© 1977 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
Original scientific paper
IMMUNOLOGICAL IDENTITY OF POLLEN-WALL PROTEINS IN SOME INCOMPATIBLE PINE SPECIES
S. PETRIĆEVIĆ1, M. VIDAKOVIĆ2, I. BILIĆ1 and Ž. BORŽAN2
1»Pliva«, Pharmaceutical and Chemical Products Factory, Zagreb
2Faculty of Forestry, University of Zagreb, 41000 Zagreb, Yugoslavia
Abstract
Petrićević, S., Vidaković, M., Bilić, I. and Boržan, Ž. (1977): Immunological identity of pollen-wall proteins in some incompatible pine species. - Genetika, Vol. 9, No. 3, 271-280.
Extracts from the pollen-wall proteins of the Scots Pine (Pinus sylvestris L.) trees: sy 367, sy 77 and sy 44, the European Black Pine (Pinus nigra Arn.) trees: ni 445, ni 221 and ni 47, and of one ramet of the Japanese Red Pine (Pinus densiflora S. et Z.) de V-115 were prepared for immunological investigation using the gel-diffusion precipitation test. Antisera were produced in rabbits which were immunized bv individually formulated antigens--extracts of .soluble pollen proteins with incomplete Freund adjuvant. Through immunological analysis, using the method of the double diffusion in agar-gel, various antigen-antibody combinations between the ingredients of compatible and incompatible species, as well as between the ingredients of individual trees of the same species were investigated. The results of serological reactions are compared to results of controlled hybridization.
Published in „GENETIKA“ Vol. 9, No.3 (1977), pp. 281-289
© 1977 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
Original scientific paper
DETERMINATION OF CHROMOSOMES INVOLVED IN TRANSLOCATION BY STUDING THE MEIOSIS OF F, HYBRIDS BETWEEN DIFFERENT WHEAT VARIETIES AND CHINESE SPRING ANEUPLOIDS
S. PETROVIĆ
Poljoprivredni fakultet, Institut za ratarstvo i povrtarstvo, 21000 Novi Sad, Jugoslavija
Abstract
Petrovic, S. (1977): Determination of chromosomes involved in translocation by studing the meiosis of F/ hybrids between different wheat varieties and Chinese Spring aneuploids. - Genetika, Vol. 9, No. 3, 281-289.
The determination of chromosomes involved in translocation has been made for several hexaploid wheat varieties. Meiosis was studied in F1 hybrids between Chinese Spring aneuploids and tested varieties. Occurrences of critical MI configurations (relative to Chinese Spring) are shown in several tables and critical chromosomes are discussed.
Published in „GENETIKA“ Vol. 9, No.3 (1977), pp. 291-299
© 1977 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
Original scientific paper
CHARACTERISTICS OF MUTATIONS IN THE POPULATION OF TRITICUM AESTIVUM VULGARE TREATED WITH EMS
Ljiljana VAPA and Katarina BOROJEVIĆ
Prirodno-matematički fakultet, 21000 Novi Sad, Jugoslavija
Abstract
Vapa, lj. and Borojcvic, K. (1977): Characteristics of mutations in the population of Triticum aestivum vulgare treated with EMS. - Genetika, Vol. 9, No. 3, 291-299.
Wheat seeds of the San Pastpre variety were treated by EMS. In M4 generation macromutations were selected which segregated in Ms and M6 generation on macro- and micromutations. Plants of both groups were subjected to the investigation of quantitative characteristics such as plant height, spike length, number of spike lets in a spike and number of kernels per spike. Herewith, the mutant validity of each plant was calculated depending on the magnitude of quantitative changes. The frequency of mutant plants with the changes of particular values were such as to enable comparison of experimental results with the theoretical ones according to the equation y = be-ax (Gregory, 1965). The obtained results indicate that there are some differences between the populations of macro- and micromutations.
Published in „GENETIKA“ Vol. 9, No.3 (1977), pp. 301-304
© 1977 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
Original scientific paper
THE GENETIC RISK OF CYTOSTATIC THERAPY. THE EFFECT OF IMURAN ON HUMIAN CHROMOSOMES
Emilija STOJIMIROVIĆ, B. GARZIČIĆ, Branislava AJDARIĆ i Danica KORAĆ
Pedijatrijska klinika Medicinskog fakulteta u Beogradu i
Laboratorija za humanu citogenetiku Instituta za biološka istraživanja, 11000 Beograd, Jugoslavija
Abstract
Stojimirović, E., Garzičić, B., Ajdarić, B. and Korać, D (1977): The genetic risk of cytostatic therapy. The effect of Imuran on human chromosomes. - Genetika, Vol. 9, No. 3, 301-304.
The problem of the effect of the immunosuppressive medi cament Imuran, which has a widespread application in the treatment of nonmalignant diseases, on genetic material and the possibility of its mutagenic and teratogenic effects in patients treated is a problem still present in medicine. In the literature there are contradictory reports on this issue. The autors have examined the effect of Imuran on patients who were under treatment for various diseases, and cytogenetic examinations were done before, during and after the administration of the medicament. The classical and the C-band techniques were applied. The research showed that the medicament had no influence on the chromosomes of these patients.
Published in „GENETIKA“ Vol. 9, No.3 (1977), pp. 305-307
© 1977 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
Original scientific paper
THE CONTEMPORARY TESTING OF THE HARMFUL EFFECT OF CYTOSTATICS ON THE HUMAN GENOM. THE RESULTS OF EXAMINATION OF BREAKAGE EFFECT OF IMURAN
Emilija STOJIMIROVIĆ, Branislava AJDARIĆ, Danica KORAĆ and B. GARZIČIĆ
Pedijatrijska klinika Medicinskog fakulteta u Beogradu
and
Institut za biološka istraživanja, 11000 Beograd, Jugoslavia
Abstract
Stojimirović, E., Ajdarić, B., Korać, D. and Garzičić, B. (1977): The contemporary testing of the harmful effect of cytostatics on the human genom. The results of examination of breakage effect of Imuran. - Genetika, Vol. 9, No. 3, 305-307.
The authors were examining the culture of peripheral blood applying the classical and C band technique in 26 children healed with Imuran because of their basic disease, and who were treated with the drug from a few weeks to several months. In 10 children who were administered the drug for the longest period of time examinations of bone marrow were made. The breakage effect of this drug was not proven in any examinee.
Published in „GENETIKA“ Vol. 9, No.3 (1977), pp. 309-313
© 1977 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
Original scientific paper
THE PRESENCE OF FLUORESCENT MORPHOLOGICAL VARIANTS IN THE SCREENING TEST FOR Y BODY IN THE INTERFASE NUCLEUS
Z. TASIĆ, M. JANKOVIĆ and Branislava AJDARIĆ
Pedijatrijska klinika Medicinskog fakulteta, 11000 Beograd, Jugoslavija
Abstract
Tasić, Z., Janković, M. and Ajdarić, B. (1977): The presence of fluorescent morphological variants in the screening test for Y body in the interphase nucleus. - Genetika, Vol. 9, No. 3, 309-313.
Applying the screening test for the fluorescent Y body in interphase nucleus to 500 examined school boys, the authors discovered in 9 children two or more luminescent bodies. One of them had chromosomal aberration 47 XYY while the other 8 had satellites of group D or G chromosome which was confirmed by additional examination of caryotypes using classical technique. The authors emphasize the significance of this test for mass examinations of the polymorphism of Y chromosome.
Published in „GENETIKA“ Vol. 9, No.3 (1977), pp. 315-322
© 1977 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
Original scientific paper
THE EFFECT OF CAFFEINE ON THE REPAIR AFTER UV IRRADIATION UNDER DIFFERENT CONDITIONS IN STREPTOMYCES RIMOSUS R7
T. HRANUELI, Zora TOMAN, Vera SAKE i Marija ALAČEVIĆ
Tehnološki fakultet, 41000 Zagreb, Jugoslavija
Abstract
Hranueli, T., Toman, Z., Sare, V. and Alačević, M. (1977): The effect of caffeine on the repair after UV irradiation under different conditions in Streptomyces rimosus R7.- Genetika, Vol. 9, No. 3, 315-322.
The influence of environmental conditions, such as incubation temperature, daylight and composition of the growth medium, were investigated in order to establish the synergistic effect of caffeine and UV irradiation in Streptomyces rimosus, R7 and its auxotrophic mutant 1086S. All the parameters tested have an impact on the survival of cells after UV irradiation. The survival is however different under different cultural conditions in both strains.
Published in „GENETIKA“ Vol. 9, No.3 (1977), pp. 323-334
© 1977 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
Original scientific paper
RECENT THOUGHTS ON GENE CONTROL AND THE FITNESS OF POPULATIONS
B. WALLACE
Division of Biological Sciences, Cornell University, Ithaca, N.Y. 14853, U.S.A.
Abstract
Wallace, B. (1977): Recent thoughts on gene control and the fitness of populations. - Genetika, Vol. 9, No. 3, 323-334.
In this paper the author reviews his studies on irradiated populations of Drosophila melanogaster including the viability effects of newly induced mutations in otherwise homozygous individuals, on the ecological aspects of genetic loads, and on intra- and inter-specific competition. He then argues that, in an environment whose carrying capacity fluctuates erratically, variation in the Darwinian fitnesses of individuals (even that of genetic origin, i.e. genetic load) is necessary for the automatic culling by which populations avoid extinction through severe over-crowding. Thus, far from constitution a »load«, genetic variation is an important factor contributing to high population fitness, or adaptedness.