GENETIKA, Vol

GENETIKA, Vol. 2, No.1 (1970)

Kosana KONSTANTINOV and J. MOUTSCHEN

CENTROMERIC LOCALIZATION OF ISOPROPYL METHANESULFONATE (iPMS) INDUCED ABERRATIONS IN PLANT SPECIES [Abstract]

A.M. OMAR, A.K.A. SELIM and L.R.M. MOHAMED

INHERITANCE OF EARLINESS IN BARLEY [Abstract]

Milka ŠOPOVA

GENETIC SYSTEM OPPERATING IN FORMATION, OF GIANT POLLEN GRAINS IN ALLIUM [Abstract]

Vlasta KENDJELIĆ

EFFECT OF GAMMA IRRADIATION OF WHEAT KERNELS OR WHEAT POLLEN ON THE GENERATION IN WHICH HOMOZYGOUS MUTANTS WITH THE SAME CHARACTERISTICS DEVELOP [Abstract]

Lj. BERBEROVIĆ, M. ĆURIĆ, R. HADŽISELIMOVIĆ and A. SOFRADŽIJA

CHROMOSOME COMPLEMENT OF SALMOTHYMUS OBTUSIROSTRIS OXYRHYNCHUS (STEINDACHNER) [Abstract]

B. GARZIČIĆ, Stefanija MARKOVIĆ, V. ŠULOVIĆ and D. MARKOVIĆ

AUTORADIOGRAFIC STUDY OF THE CHROMOSOMES IN A PHENOTYPICALLY HEALTHY CARRIER OF THE TRANSLOCATION D/D [Abstract]

Desanka RIMSA and B. GARZIČIĆ

THE EFFECT OF DEGRANOL ON TUMOUR CELL POPULATION IN VITRO. II. ACTION ON THE CHROMOSOMES OF AN ESTABLISHED CELL LINE IN VITRO DURING THE ISOLATION OF THE RESISTANT STRAINS [Abstract]

M. ABD-EL'HAMID and A. M. ALI

INHERITANCE STUDY OF COTTON FIBER STRENGTH AND FINENESS IN A CROSS BETWEEN TWO EGYPTIAN VARIETIES [Abstract]

H.A. IBRAHIM and N.F. JENSEN

STUDIES ON THE INHERITANCE OF SPROUTING IN THE EAR AND EFFECT OF SELECTION IN WINTER SOFT WHEAT [Abstract]

P.M. ABDEL-TAWAB

INTERSPECIFIC HYBRIDIZATION IN FIVE SPECIES OF TRIFOLIUM L. [Abstract]

Jelisaveta IVANOVIĆ and D. MARINKOVIĆ

INDIVIDUAL VARIABILITY OF THE pH OPTIMUM OF AMYLASE IN LARVAL POPULATIONS OF THE INSECT SPECIES MORIMUS FUNEREUS L. [Abstract]

Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 3-14

Serbia

Original scientific paper

CENTROMERIC LOCALIZATION OF ISOPROPYL METHANESULFONATE (iPMS) INDUCED ABERRATIONS IN PLANT SPECIES

Kosana KONSTANTINOV and J. MOUTSCHEN¹

Department of Genetics and Plant Breeding, INEP, Beograd-Zemun, Yugoslavia, and

¹Laboratory of Genetics, University of Liege, Belgium

Abstract

Konstantinov, Kosana and Moutschen, J. (1970): Centromeric localization of isopropyl methanesulfonate (iPMS) induced aberrations in plant species.- Genetika, Vol. 2, No. 1, 3-14.

The effects of iPMS on chromosomes were investigated with the following materials: Nigella damascena and Vicia faba dry seeds and growing root tips, Hordeum sativum (diploid) and Triticum vulgare (hexaploid) caryopses. In all species iPMS was found to be less efficient as a chromosome breaker than methyl methane sulfonate (MMS) but more efficient than compounds with larger alkyl groups. A large proportion of each type of aberration was localized within or near the centromeres. The affinity does not depend on the stage of the mitotic cycle which was treated. As after Myleran (a bifunctional sulfonate), treatment with iPMS resulted in deficient cells but with a completely different pattern. From anaphase observations in barley and wheat it appears highly probable that neo-telocentric chromosomes and possibly iso-chromosomes can arise as a consequence of breakage. From these data, it is thought that iPMS will be a valuable tool for mutagenic research.

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Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 15-30

Serbia

Original scientific paper

INHERITANCE OF EARLINESS IN BARLEY

A.M. OMAR, A.K.A. SELIM and L.R.M. MOHAMED

Am Shams University, Faculty of Agriculture Shutora El-Kheima, Cairo, U. A. R.

Abstract

Omar, A. M., Selim, A. K. A. and Mohamed, L. R. M. (1970): Inheritance of earliness in barley. - Genetika, Vol. 2, No. 1, 15-30.

The present work is an attempt to study the genetic behavior of earliness in barley in the Fi, F₂ and F₃ of thirteen crosses including six local and introduced varieties. It appeared that earliness was controlled by three pairs of genes: gene (Ea₁) for medium early was epistatic to gene (Ea₂) for medium late and this gene was in turn epistatic to gene (Ea₃) for late heading. The recessive genes (ea₁, ea₂, ea₃) gave early heading and the dominant genes (Ea₁, Ea₂, Ea₃) together gave medium heading. The genetic constitution of the parents were assumed to be: ea₁ ea₂ ea₃ for Torusuando (early), Ea₁, Ea₂ ea₃ for Tridax (medium early), Ea₁ Ea₂Ea₃ for Giza 117 (medium), ea₁ Ea₂ Ea₃ for Bonus and C. I. 5632 (medium late) and ea₁ ea₂ Ea₃ for North Carolina Hooded (late).

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Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 31-44

Serbia

Original scientific paper

GENETIC SYSTEM OPPERATING IN FORMATION, OF GIANT POLLEN GRAINS IN ALLIUM

Milka ŠOPOVA

Prirodno-matematički fakultet, Skopje

Abstract

Sopova, Milka (1970): Genetic system opperating in formation o-f giant pollen grains in Allium. - Genetrka, Vol. 2, No. 1, 31-44.

The formation of giant pollen grains in several Allium species was the main subject of this investigation. The general conclusions that emerge from the data obtained are that spontaneous changes and irregularities of premeiotic mitosis and meiotic processes were observed to be responsible for the production of giant and defective gametes in Allium species.

Since the presence of giant pollen grains was found in all plants under investigation, our observations lead in this respect to a conclusion that the occurrence of giant pollen grains in Allium is due to the control of a genetic factor which can be expressed under certain conditions of the environment. Indeed, it was found that changes in wetness, temperature and the decaying of roots in plants not transplanted for a long period, increased the production of giant pollen grains, affected the meiotic process and consequently increased the number of irregularities even in the first pollen mitosis of normal haploid pollen grains.

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Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 45-53

Serbia

Original scientific paper

EFFECT OF GAMMA IRRADIATION OF WHEAT KERNELS OR WHEAT POLLEN ON THE GENERATION IN WHICH HOMOZYGOUS MUTANTS WITH THE SAME CHARACTERISTICS DEVELOP

Vlasta KENDJELIĆ

Zavod za genetiku i oplemenjivanje bilja, Poljoprivredni fakultet, Zagreb

Abstract

Kendjelić, Vlasta (1970): Effect of gamma irradiation of wheat kernels or wheat pollen on the generation in which homozygous mutants with the same characteristics develop. - Genetika, Vol. 2, No. 1, 45-53.

Kernels and pollen from hexaploid and tetraploid wheat with the homozygous dominant characteristics awnless, dark and hairy glumes, were irradiated with gamma rays. It was found that recessive types developed some generations earlier after irradiation of kernels than after irradiation of pollen.

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Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 56-63

Serbia

Original scientific paper

CHROMOSOME COMPLEMENT OF SALMOTHYMUS OBTUSIROSTRIS OXYRHYNCHUS (STEINDACHNER)

Lj. BERBEROVIĆ, M. ĆURIĆ, R. HADŽISELIMOVIĆ and A. SOFRADŽIJA

Biološki institut Univerziteta u Sarajevu

Abstract

Berberovic, Lj., Curie, M., Hadziselimovic, R. and Sofradzija, A. (1970): Chromosome complement of Salmothymus obtusiro-stris oxyrhynchus (Steindachner). - Genetika, Vol. 2, No. 1, 55-63.

The chromosome complement of Salmothymus obtusirostris oxyrhynchus (Steindachner) was examined. It has been established that the diploid chromosome number of this form is 2n=82. At least six pairs consist of metacentric or submetacentric chromosomes.

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Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 65-69

Serbia

Original scientific paper

AUTORADIOGRAFIC STUDY OF THE CHROMOSOMES IN A PHENOTYPICALLY HEALTHY CARRIER OF THE TRANSLOCATION D/D

B. GARZIČIĆ, Stefanija MARKOVIĆ, V. ŠULOVIĆ and D. MARKOVIĆ

Laboratorija za humanu citogenetiku, Zavod za mentalno zdravlje, Beograd

i Genetički odsek, Institut za biološka istraživanja, Beograd

Abstract

Garzičić, B., Marković, Stefanija, Šulović, V. and Marković, D. (1970): Autoradiografic study of the chromosomes in a phenotypically healthy carrier of the translocation D/D. - Genetika, Vol. 2, No. 1, 65-69.

It has been established by the method of autoradiography that a carrier of the translocation, having the karyotype 45, XY, 2D-, t (D/D)⁺, is a case of translocation of nonhomologous chromosomes, i. e. a karyotype 45, XY, D,₃ - D_J4 -, t (D,,/D_U)⁺.

The matching of mature sex cells from carriers of this translocation with normal gametes, theoretically may give the following four kinds of zygotes: a) monosomy D, b) trisomy D, c) a balanced translocation Div'On and d) a zygote with a normal karyotype. The first two of the mentioned combinations are lethal.

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Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 71-79

Serbia

Original scientific paper

THE EFFECT OF DEGRANOL ON TUMOUR CELL POPULATION IN VITRO. II. ACTION ON THE CHROMOSOMES OF AN ESTABLISHED CELL LINE IN VITRO DURING THE ISOLATION OF THE RESISTANT STRAINS

Desanka RIMSA and B. GARZIČIĆ

Division of Genetics, Institute for Biological Research, Belgrade, Yugoslavia

Abstract

Rimsa, Desanifca and Garzicic, B. (1970): The effect of Degranol on tumour cell population in vitro. II. Action on the chromosomes of an established cell line in vitro during the isolation of the resistant strains. - Genetika, Vol. 2, No. 1, 71-79.

In this work we investigated the changes brought about by the alkylating agent, Degranol, (l,6-bis-(beta-chloraethylamino)--1,6-desoxy-mannit-dichlorhydrate), on the chromosomes of tumour cell population in vitro. The possibility of isolating the resistant strain was examined by using a method of selection with this drug. Resistant strains were selected from the established cell line and they differed from the control one in a decreased number of chromosomal aberrations, in the types of aberrations, in modal chromosome number and in the colony forming ability.

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Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 81-86

Serbia

Original scientific paper

INHERITANCE STUDY OF COTTON FIBER STRENGTH AND FINENESS IN A CROSS BETWEEN TWO EGYPTIAN VARIETIES

M. ABD-EL'HAMID and A. M. ALI

National Research Centre, Genetics and Cytology Laboratory, Dokki, Cairo, U. A. R.

Abstract

Abd-El'Hamid, A. M. and Ali, A. M. (1970): Inheritance study of cotton fiber strength and fineness in a cross between two Egiptian varieties. - Genetika, Vol. 2, No. 1, 81-86.

The results showed that both fiber strength and fineness are quantitatively inherited. The high fiber strength partially dominates the low while dominance for fiber fineness is absent. The heritability values estimated are 47% for fiber strength and 39.3% for fiber fineness. The correlation coefficient between micronaire readings and fiber strength in the pressley index is »-0.3586« and significant at the 1% level.

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Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 87-96

Serbia

Original scientific paper

STUDIES ON THE INHERITANCE OF SPROUTING IN THE EAR AND EFFECT OF SELECTION IN WINTER SOFT WHEAT

H.A. IBRAHIM and N.F. JENSEN

Wheat and Barley Section, Department of Agriculture,

Cairo, U.A.R. Department of Plant Breeding, Cornell University Ithaca, N.Y., U.S.A.

Abstract

Ibrahim, H. A. and Jensen, N. F. (1970): Studies on the inheritance of sprouting in the ear and the effect of selection in winter soft wheat. - Genetika, Vol. 2, No. 1, 87-96.

The inheritance of seed coat color in the Red coat variety depends on single gene with red dominant over white. The inheritance of sprouting was studied in the F₂ population of a cross between a dormant red winter soft wheat, and nondormant white winter soft wheat. The red F₂ plants (RR or Rr) sprouted less than the white (rr) F₂ plants; and red heterozygous (Rr) plants sprouted more than red homozygous (RR) plants. The red alleles have an additive effect on sprouting. Dormancy or sprouting is quantitatively inherited. No white lines reached the same level of dormancy as the red dormant lines. There were some red lines (RR or Rr) that had very high sprouting levels. The resistant red lines in most cases bred true, while the susceptible red lines segregated.

Two hypothesis were assumed to explain the inheritance of sprouting in the ear: a) a complementary genes hypothesis which assumes the presence of minor genes in addition to the major genes which control seedcoat color or its precursor, and b) the second hypothesis assumes the presence of quantitative genes that promote germination and counteract the inhibitory effect of the seedcoat pigmentation.

Selection for sprouting resistance was effective among the F₂ population whether white (rr) or red (RR, Rr).

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Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 97-103

Serbia

Original scientific paper

INTERSPECIFIC HYBRIDIZATION IN FIVE SPECIES OF TRIFOLIUM L.

P.M. ABDEL-TAWAB

Forage Research Section, Crops Research Division, Department of Agriculture, Cairo, U. A. R.

Abstract

Abdel-Tawab, F. M. (1970): Interspecific hybridization in five species of Trifolium L. - Genetika, Vol. 2, No. 1, 97-103.

Chromatographic differentiation of Trifolium species under - study showed a close relationship between T. medium Hunds. and T. pratense L. and also between T. Campestre Schreb and T. dubium Sibth. Self - compatibility of the species varied from 68.4 percent for T. dubium to less than four percent for T. pratense. Viable seeds were produced in the cross of T. dubium x T. campestre indicating their cytogenetic alliance. The cross between .T. medium x T. pratense resulted in some shrivelled seeds. In this cross pollen tubes were traced to the vicinity of the ovaries. Cytological and morphological evidence indicated a possible ancestral relationship between these two species.

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Published in „GENETIKA“ Vol. 2, No.1 (1970), pp. 105-111

Serbia

Original scientific paper

INDIVIDUAL VARIABILITY OF THE pH OPTIMUM OF AMYLASE IN LARVAL POPULATIONS OF THE INSECT SPECIES MORIMUS FUNEREUS L.

Jelisaveta IVANOVIĆ and D. MARINKOVIĆ

Institute for Biological Research, Beograd, Yugoslavia

Abstract

Ivanovic, Jelisaveta and Marinkovic, D. (1970): Individual variability of the pH optimum of amylase in larval populations of the insect species Morimus funereus L. - Genetika, Vol. 2, No. 1, 105-111.

Individual variability in the optimum pH of intestinal amylase was investigated in two larval populations of the coleopterous species M. funereus. The larvae which lived in a mixed oak-hornbeam-beech forest were found to have a smaller variability of the examined character, in relation to the population from a pure beech forest. The evolutionary significance of such a trophic adaptation, expressed at the level of a population, is discussed.

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