GENETIKA, Vol

GENETIKA, Vol. 3, No.1 (1971)

H. D. KLEIN and M. MILUTINOVIĆ

GENETISCHE KONTROLLE DES KONJUGATIONSPROZESSES DER MEIOSIS IN RONTGEN - UND NEUTRONENINDUZIERTEN MUTANTEN [Abstract]

J. MILOHNIĆ

EFFECT OF CYTOPLASMIC MALE STERILITY ON THE QUALITY OF SEED IN WHEAT (TR. AESTIVUM SSP VULGARE L.) [Abstract]

L. MUNCK and I. KREFT

BIOLOGICAL EVALUATION OF BARLEY SAMPLES AND BREEDING OF VARIETIES WITH HIGH CONTENT OF AVAILABLE LYSINE [Abstract]

Z. MARTINIĆ

INHERITANCE OF RESPONSE TO A SHORTENED PHOTOPERIOD OF SOME GENOTYPES OF COMMON WHEAT [Abstract]

J. DUMANOVIĆ and M. DENIĆ

GENETIC VARIABILITY OF AMINO ACID COMPOSITION AND PROTEIN CONTENT IN CROP PLANTS [Abstract]

M. DENIĆ, Kosana KONSTANTINOV and J. DUMANOVIĆ

INFLUENCE OF THE OPAQUE-2 GENE ON SOME CHARACTERS OF MAIZE ENDOSPERM [Abstract]

Vesna POPOVIĆ and M. DENIĆ

SPECIES SPECIFICITY OF ESCHERICHIA COLI AND WHEAT IN AMINOACYLATION OF TRANSFER - RIBONUCLEIC ACID [Abstract]

A. TAVČAR

INDUCTION OF MUTANTS OF USEFUL CHARACTERISTICS IN AGRICULTURAL PLANTS [Abstract]

M. VIDAKOVIĆ

GENETICS IN FOREST TREE IMPROVEMENT [Abstract]

M. VIDAKOVIĆ and A. KRSTINIĆ

EFFECT OF GAMMA—IRRADIATED POLLEN ON THE GROWTH OF WHITE WILLOW (SALIX ALBA L.) [Abstract]

M. VIDAKOVIĆ and Branka JURKOVIĆ-BEVILACQUA

DEVELOPMENT OF OVULES AFTER INTERSPECIFIC HYBRIDIZATION OF AUSTRIAN AND SCOTS PINES WITH GAMMA-IRRADIATED POLLEN [Abstract]

M. JOVANOVIĆ, A. TUCOVIĆ and D. VULETIĆ

COMPARATIVE ANALYSIS OF THE PROCESSES OF MACROSPOROGENESIS, MACROGAMETOGENESIS AND EARLY EMBRYOGENESIS IN THE COMMON OAK (Quercus robur L.) IN RELATION TO THE TYPE OF POLLINATION [Abstract]

D. MARINKOVIĆ

EVOLUTIONARY ADAPTATIONS AND THE GENETIC STRUCTURE OF POPULATIONS [Abstract]

R. HADŽISELIMOVIĆ, E. MASLIĆ and B. PAVLOVIĆ

BODY SIZE DIVERSITY IN NATURAL POPULATIONS OF DROSOPHILA MELANOGASTER IN BOSNIA AND HERZEGOVINA (YUGOSLAVIA) [Abstract]

Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 1-12

Serbia

Original scientific paper

GENETISCHE KONTROLLE DES KONJUGATIONSPROZESSES DER MEIOSIS IN RONTGEN - UND NEUTRONENINDUZIERTEN MUTANTEN

H. D. KLEIN and M. MILUTINOVIĆ

Institut za genetiku Univerziteta u Bonu, SR Nemačka

and Poljoprivredni fakultet, Beograd - Zemun

Abstract

Klein, H. D. und Milutinovic, M. (1971): Genetische Kontrolle des Konjugationsprozesses der Meiosis in rontgen- und neutronen-induzierten Mutant en. - Genetika, Vol. 3, No. 1, 1-12.

Die zytogenetische Bearbeitung einer asynaptischen Mutan-te (2241) und einer desynaptischon Form (2500) von Pisum Sati-vum brachte folgende wesentliche Ergebnisse: 2241 zeigt in Bezug auf die durchschnittliche Univalenten - und Gonenzahl je PMZ eine deutliche Abhangigheit von Umweltfaktoren. 2500 weist neben der Reduktion der Chiasmafrequenz (Desynapsis) eine ausgepra-gte Tendenz zur Verklebung der Chromosomen untereinander auf, lerner eine erhebliche Asynehronie im Entwicklungsablauf der PMZ einer Anthere und zahlreiche Bruche und Rekombinationen, die in spateren meiotischen Stadien als Brucken und Fragmente nachweisbar sind.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 13-26

Serbia

Original scientific paper

EFFECT OF CYTOPLASMIC MALE STERILITY ON THE QUALITY OF SEED IN WHEAT (TR. AESTIVUM SSP VULGARE L.)

J. MILOHNIĆ

Institut za oplemenjivanje i proizvodnju bilja — Poljoprivredni fakultet, Zagreb

Abstract

Milohnić, J. (1971): Effect of cyloplasmic male sterility on the quality of seed in wheat (Tr. aestivum ssp. vulgare L.). - Genetika, Vol. 3, No. 1, 13-26.

The quality of seed produced on Tr. timopheevi cytosteriles (A-Iines) was compared with their normal fertile counterparts (B-lines). The investigations were conducted with 8 varieties during a three year period.

The seed produced on male-sterile plants is larger and heavier, than that from the normal fertile analogue, but has a lower germination capacity. The seedlings from A-lines have shorter coleoptila and seminal roots than those of B-lines. The differences in the number of seminal roots are not significant.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 27-30

Serbia

Original scientific paper

BIOLOGICAL EVALUATION OF BARLEY SAMPLES AND BREEDING OF VARIETIES WITH HIGH CONTENT OF AVAILABLE LYSINE

L. MUNCK and I. KREFT

Institute of Genetics, University of Lund, Sweden

Biotehniška fakulteta, Ljubljana, Yugoslavia

Abstract

Munck, L. and Kreft, I. (1971): Biological evaluation o] barley samples and breeding of varieties with high content of available lysine .- Genetika, Vol. 3, No. 1. 27-30.

In a barley breeding programme, barley lines with the »Hily« (high-lysine) character are back-crossed with high yielding varieties. A new approach to indicators of the nutritional value of lysine in barley is proposed.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 31-41

Serbia

Original scientific paper

INHERITANCE OF RESPONSE TO A SHORTENED PHOTOPERIOD OF SOME GENOTYPES OF COMMON WHEAT

Z. MARTINIĆ

Poljoprivredni fakultet, Zagreb

Abstract

Martinić, Z. (1971): Inheritance of response to a shortened photoperiod of some genotypes of common wheat.- Genetika Vol. 3, No. 1, 31-41.

One line of the Newthatch variety of spring wheat which is high sensitive to the shortened photoperiod, was crossed with four low responding lines, i.e. of spring variety S-l, alternative wheat Abbondanza and the winter wheats San Pastore and Etoile de Choisy.

The analyses of plant development of the parent lines, Ti and F₂ generations of the lour crosses, grown in two different photoperiods, showed an almost complete dominance of low response in the Fi generation. In the three crosses the ratio between low and high responding plants of the F₂ generation was in full agreement with the theoretical ratio of 10 : 6 for two consecutive years. The two dominant independent alleles governing low response were not equal in action. Moreover, it remains an open question whether the alleles, governing the response, were identical in all low responding lines used in the crosses.

It was shown in one and the same cross that the number of gene pairs governing the response to photoperiod need not necessarily be equal in different years.

Even a relatively simple mechanism of inheritance of response to photoperiod, when combined with multiple series and specific actions of different loci, is not in disagreement with the observed quantitative characteristics of response to photo-period within the species Tr. aestivum ssp. vulgare.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 43-54

Serbia

Original scientific paper

GENETIC VARIABILITY OF AMINO ACID COMPOSITION AND PROTEIN CONTENT IN CROP PLANTS

J. DUMANOVIĆ and M. DENIĆ

INEP, Zavod za genetiku, Zemun

Abstract

Dumanović, J. and Denić, M. (1971): Genetic variability of amino acid composition and protein content in crop plants. - Genetika, Vol. 3, No. 1, 43-54.

The genetic possibilities for inducing changes in protein content and in amino acid composition of cereal grain proteins are discussed. Such possibilities are specially emphasized for the endosperm storage proteins, of which large amounts have no metabolic function, thus permitting greater changes without impairing the viability of the seeds. The implications of such potential changes in specific breeding programmes are considered.

Some results from a current mutation study in wheat are presented showing that a high protein content need not necessarily be associated with an undesirable balance of essential amino acids.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 55-62

Serbia

Original scientific paper

INFLUENCE OF THE OPAQUE-2 GENE ON SOME CHARACTERS OF MAIZE ENDOSPERM

M. DENIĆ, Kosana KONSTANTINOV and J. DUMANOVIĆ

INEP, Zavod za genetiku, Zemun

Abstract

Denic, M., Konstantinov Kosana and Dumanovic, J. (1971): Influence of the opaque-2 gene on some characters of maize endosperm. - Genetika, Vol. 3, No. 1, 55-62.

The influence of the opaque-2 gene on the stability and distribution of RNase and grain weight was studied. The activity of ribonuclease was higher in segregated opaque than in normal endosperms. This was found even with mosaic like endosperms. Investigations performed with in vitro systems showed that the stability of the enzyme from both mutant and normal endosperm was the same after storage of extracts at different temperatures. In many cases the weight of opaque kernels was lower than normal ones.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 63-69

Serbia

Original scientific paper

SPECIES SPECIFICITY OF ESCHERICHIA COLI AND WHEAT IN AMINOACYLATION OF TRANSFER - RIBONUCLEIC ACID

Vesna POPOVIĆ and M. DENIĆ

Zavod za genetiku, INEP, Zemun

Abstract

Popović, Vesna and Denić, M. (1971): Species specificity of Escherichia coli and wheat in aminoacylation of transfer-ribo-nucleic acid.- Genetika, Vol. 3, No. 1, 63-69.

The binding of lysine to tRNA either from E. coli or wheat embryo was studied in homologous and heterologous systems. The studies showed an incompatibility between the enzyme from wheat and tRNA from E. coli. However, in the presence of enzyme from E. coli there was binding of lysine to tRNA from wheat embryo. With increasing concentration of NaCl in the system the amount of lysine bound to wheat tRNA decreased.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 71-78

Serbia

Original scientific paper

INDUCTION OF MUTANTS OF USEFUL CHARACTERISTICS IN AGRICULTURAL PLANTS

A. TAVČAR

Poljoprivredni fakultet — Zavod za genetiku i oplemenjivanje bilja, Zagreb

Abstract

Tavčar, A. (1971): Induction of mutants of useful characteristics in agricultural plants. - Genetika, Vol. 3, No. 1, 71-78.

Relatively small doses of gamma rays (1000—10.000 r) were used for the irradiation of the following seeds: (1) wheat (hexaploids, tetraploids and triticale), (2) barley and (3) maize. Homozygous mutants were obtained with useful characteristics in comparison with unirradiated controls.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 79-93

Serbia

Original scientific paper

GENETICS IN FOREST TREE IMPROVEMENT

M. VIDAKOVIĆ

Katedra za šumarsku genetiku i dendrologiju — Šumarski fakultet, Zagreb

Abstract

Vidaković, M. (1971): Genetics in forest tree improvement. - Genetika, Vol. 3, No. 1, 79-93.

The field of population genetics is discussed from the aspect of the mutation, migration and genetic variability of forest tree populations. From the field of quantitative genetics due consideration is being paid to a study of the components of variance and inheritance. The importance of studying the genotype-environment interaction is also dealt with. The problem of incompatibility in interspecific crossings is likewise considered. In conclusion a critical review is presented of the different methods of improving forest trees.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 95-118

Serbia

Original scientific paper

EFFECT OF GAMMA—IRRADIATED POLLEN ON THE GROWTH OF WHITE WILLOW (SALIX ALBA L.)

M. VIDAKOVIĆ and A. KRSTINIĆ

Department of Forest Genetics and Dendrology, Faculty of Forestry, Zagreb

Abstract

Vidaković, M. and Krstinić, A. (1971): Effect of gamma-irradiated pollen on the growth of white willow (Salix alba L.) - Genetika, Vol. 3, No. 1, 95-118.

In 1968 and 1970 we irradiated pollen of White Willow with doses of gamma-rays from 1 to 50 kR (⁶⁰Co), and with this irradiated pollen we carried out hybridization.

Sufficient quantities of seed were obtained from all crossing combinations. Their germination capacity depended on the dose of irradiation. Thus with doses over 15 kR the percentage of plants raised in comparison with the controls decreased abruptly, while with doses over 20 kR it dropped to 1-2%.

On the basis of the computed parameters for individual and group variabilities in plant heights it could be established that, when hybridizing with pollen irradiated with doses over 5 kR, the range of variability and the variability coefficient in the progeny are increased. From the experiments in 1968 and 1970 we raised 4 plants - plus variants - whose height was situated So-above the arithmetical mean of the heights of the control plants. On the basis of the frequency of the plus variants in the treatments we computed the probability of appearance of plus variants, which amounted to about 0.1%.

Plants from the 1968 experiment whose heights fell outside the interval x ± l.5σ were clonally propagated 2-years of age. From an analysis of the regression relations of the ortet-ramet it may be stated that the correlations are stronger in those treatments where higher irradiation doses were applied. A clonally propagated plus variant exhibited at the end of the first growing period a height that was 19% greater than the average heights of the clones representing the control.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 119-130

Serbia

Original scientific paper

DEVELOPMENT OF OVULES AFTER INTERSPECIFIC HYBRIDIZATION OF AUSTRIAN AND SCOTS PINES WITH GAMMA-IRRADIATED POLLEN

M. VIDAKOVIĆ and Branka JURKOVIĆ-BEVILACQUA

Department of Forest Genetics and Dendrology - Faculty of Forestry, Zagreb

Abstract

Vidaković, M. and Jurkovic-Bevilacqua Branka (1971): Development of ovules after interspecific hybridization of Austrian and Scots pines with gamma-irradiated pollen.- Genetika, Vol. 3, No. 1, 119-130.

Austrian Pine (Pinus nigra Arn.) and Scots Pine (Finns silvestris L.) are not mutually crossable. Incompatibility which is genetic in origin appears with attempts at crossing them. In order to overcome this incompatibility, the pollen used for pollination was irradiated with gamma rays. The doses applied were 1, 2.5 and 5 kR. It was studied the course of development of the ovules at time intervals of 11—13 months following pollination, because the most characteristic changes occur then. From histological analysis of the ovules it can be assumed that the incompatibility is smaller in the case when Scots Pine is taken as female parent. From these analyses it is also supposed that there exists a stimulation in the development of the ovules in the case when pollen was irradiated as compared to the results obtained with non-irradiated pollen.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 131-145

Serbia

Original scientific paper

COMPARATIVE ANALYSIS OF THE PROCESSES OF MACROSPOROGENESIS, MACROGAMETOGENESIS AND EARLY EMBRYOGENESIS IN THE COMMON OAK (Quercus robur L.) IN RELATION TO THE TYPE OF POLLINATION

M. JOVANOVIĆ, A. TUCOVIĆ and D. VULETIĆ

Institut za šumarstvo i drvnu industriju, Beograd i Šumarski fakultet, Beograd

Abstract

Jovanović, M., Tucović, A. and Vuletić, D. (1971): Comparative analysis of the processes of macrosporogenesis, macroga gametogenesis and early embryogenesis in the common oak (Quercus robur L.), in relation to the type of pollination. - Genetika, Vol. 3, No. 1, 131-145.

The phenomenon of early abscission of flowers and unripe fruits in intra - and interspecific oak hybridization has been observed by many authors. The present work is an attempt to establish, by the use of comparative analysis of the processes of macrosporogenesis, macrogametogenesis and early embryogenesis, if there exists any difference among various pollination treatments. It was established that the differences appeared after fertilization, i.e. in the processes of early embryogenesis, which ran normally only in the cases of the controlled intraspecific hybridization and free pollinated flowers.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 147-156

Serbia

Original scientific paper

EVOLUTIONARY ADAPTATIONS AND THE GENETIC STRUCTURE OF POPULATIONS

D. MARINKOVIĆ

Prirodno-matematički fakultet i Institut za biološka istraživanja, Beograd

Abstract

Marinkovic, D. (1971): Evolutionary adaptions and the genetic structure of a population -Genetika. Vol. 3. No. 1, 147-156.

Changes in the genetic constitution of a population can be taken as a mean for the demonstration of evolutionary adaptations in living organisms. A number of data exists on cyto-
genetic variability among the different populations of a determined species, but very little is still known on the adaptive mean of (for instance) different types of inversion polymorphisms. Biochemical data are enabling us to understand better the complex nature of the relationships among the groups of genes, but only a limited number of loci is worked out for study.
The analysis of genetic loads is giving us more and more information about the mutational content of a population, and this is a field where most of connection with the adaptive means of these changes is achieved. Investigation of behavioural adaptations in organisms, such as analyses of the individual changes in their developmental processes, are new approaches to the study of population genetics, which practically present a synthesis of the methods of research so far used at different levels of organisation of living things.

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Published in „GENETIKA“ Vol. 3, No.1 (1971), pp. 157-166

Serbia

Original scientific paper

BODY SIZE DIVERSITY IN NATURAL POPULATIONS OF DROSOPHILA MELANOGASTER IN BOSNIA AND HERZEGOVINA (YUGOSLAVIA)

R. HADŽISELIMOVIĆ, E. MASLIĆ and B. PAVLOVIĆ

Laboratorija za genetiku i citotaksonomiju Biološkog instituta Univerziteta u Sarajevu, Sarajevo

Abstract

Hadžiselimović, R., Maslić, E. and Pavlović, B. (1971): Body size diversity in natural populations of Drosophila melanogaster in Bosnia and Herzegovina (Yugoslavia). - Genetika, Vol. 3, No. 1, 157-166.

Body size diversity was studied in eight natural populations of Drosophila melanogaster in Bosnia and Herzegovina (Yugoslavia). The wing lenght and width were measured. Gene complexes determining body size vary to some extent in correlation with the altitude. Thus populations from higher altitudes have larger flies. Other geographical variations of body size were not found.

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