Ontogenez Journal Impact Factor & Information

Publisher: Akademii︠a︡ nauk SSSR, Springer Verlag

Current impact factor: 0.00

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Other titles Ontogenez, Ontogenesis
ISSN 0475-1450
OCLC 5298605
Material type Periodical
Document type Journal / Magazine / Newspaper

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Springer Verlag

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Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Критически рассматривается литература по самым начальным этапам эмбриогенеза рыб (включая ряд “немодельных” видов). Основное внимание уделено утрате синхронности делений дробления зародышей и самой ранней широтной борозде дробления. Показано, что у зародышей костистых рыб (Teleostei) особенности их меробластического дробления не связаны жестко с размером яйца. Средне-бластульный переход у рыб в достаточно четкой форме имеется у некоторых хрящевых ганоидов (Chondrostei) и костистых рыб, однако не выявлен у представителей лопастеперых рыб (Sarcopterygii) и хрящевых рыб (Chondrichthyes).
    Ontogenez 11/2015; 46(6):385-392. DOI:10.7868/S0475145015060038
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    ABSTRACT: Extrathymic differentiation is an alternative way of αβT lymphocyte development. In normal conditions it is expressed slightly and limited mainly to the liver and intestinal mucous. However, it increases significantly with age, as well as in certain physiological and pathological conditions, buying more widespread. In the review, the phenotypical and functional features of extrathymic T lymphocytes have been considered in detail depending on their localization and a way of the process activation. The mechanisms of such differentiation induction have been analyzed. Special attention is paid to the biological significance of extrathymic αβT cell development.
    Ontogenez 10/2015; 46(4):209-24.
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    ABSTRACT: Early and prolonged bisexual reproduction has been registered in the population of Cercopagis pengoi within the Vistula Lagoon relative to its original habitat. Decrease in the role of parthenogenesis and increase in the frequency of gamogenesis have been registered in the population under study. It has been accompanied by reduction in the average number of parthenogenetic eggs per female and increase in the production ofgamogenetic eggs relative to the Caspian Sea.
    Ontogenez 03/2015; 45(5):341-8.
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    ABSTRACT: The rat lacrimal apparatus includes several glands; among them, the exorbital gland plays the central role. Its parenchyma and stroma undergo prominent morphologic changes with age. The parenchymal transformation includes metaplasia of some of its acini and their turning into Harderian gland-like structures (harderization), accumulation of gland ducts ("ductularization"), and morphologic dysplasia-cytomegaly, karyomegaly, and'cell and nuclearpolymorphism in the other part of acini. All these transformations are hormone-dependent andsex-specific: theyoften appear in males. On the final stages of age-related transformations, the lacrimal gland tissue is morphologically similar to the neoplasm and has neoplastic morphology but no other features of a tumor. Therefore, the rat lacrimal gland is an interesting object to study tissue and cell atypia. In the rat glandular stroma, lymphocytic infiltration and fibrosis appear with age; these changes are similar to processes taking place in human lacrimal apparatus involved in the pathogenesis of senile dry eye syndrome. The spontaneous changes in the rat lacrimal gland, predominantly in male rats, can be used as a model of the human lacrimal apparatus disorders.
    Ontogenez 03/2015; 45(5):289-98.
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    ABSTRACT: In this review, the features of the regeneration of corneal tissue and its disorders leading to the development of fibrosis are considered. The data on the presence of stem (clonogenic) cell pool in the corneal tissues (epithelium, endothelium, stroma) are given; these cells can serve as a source for regeneration of the tissues at injury or various diseases. The main steps of regeneration of corneal tissues and their disorders that lead to outstripping proliferation of myofibroblasts and secretion of extracellular matrix in the wound area and eventually cause the formation of connective tissue scar and corneal opacity are considered. Particular attention is given to the successes of translational medicine in the treatment of corneal tissue fibrosis. The methods of cell therapy aimed at the restoration of stem cell pool of corneal tissues are the most promising. Gene therapy provides more opportunities; one of its main objectives is the suppression of the myofibroblast proliferation responsible for the development of fibrosis.
    Ontogenez 03/2015; 45(5):314-25.
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    ABSTRACT: The article is devoted to the 100th anniversary of the outstanding world-renown Russian scientist Vladimir Alexandrovich Strunnikov, Academician, Professor, Head of Group of Developmental Cytology and Sex Regulation at Koltzov Institute of Developmental Biology and Head of genetic studies on silkworms in a number ofsericulture institutes in CIS. Laureate of the State Prize of the USSR (1981), Hero of Socialist Labor (1990), awarded the I.I. Mechnikov Gold Medal, Academy of Sciences of the USSR (1981), founder of the theory explaining the origin of heterosis. One of his most significant achievements is the "Methods of Fixing the Heterosis Effect," which makes it possible to abandon the production of hybrid seed and increase the yield of many crops by 20-50%. Fixing the gene complexes that determine the heterosis effect will become the "springboard" that will allow obtaining even more productive heterotic hybrids on the basis of new-generation varieties. The efficiency of this method in plant objects at the organismal and molecular levels was shown in the All-Russia Research Institute of Rice. A modification of this method reducing its laboriousness and increasing its efficiency was developed.
    Ontogenez 03/2015; 45(6):442-6. DOI:10.1134/S1062360414060046
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    ABSTRACT: Primary transformants carrying a genetic construct with the chimeric gfp-tua6 gene were obtained using biolistic transformation of hypocotyl explants of flax variety Vasilek. Viable modified plants were used as a basis for the production of inbred lines with confirmed inheritance of introduced genetic construct in three generations. The characteristics of phenological growth stages, plant height, number of bolls and meiosis were studied for transgenic plants. A comparison of transformed lines based on reproduction years revealed a significant decrease of seed production in one line. Meiotic analysis of this line at metaphase I and anaphase I stages was conducted. The percentage of cells with impaired meiosis was highest in transgenic plants of the line with the lowest seed production. Thus, the nonspecific incorporation of genetic construct into the flax genome using biolistic transformation impairs meiosis to a different extent and it is the main reason for unequal reproducibility of transgenic flax. The production of stably reproducing transgenic lines requires systematic analysis of meiosis.
    Ontogenez 03/2015; 45(6):406-11. DOI:10.1134/S1062360414060083
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    ABSTRACT: The structure, origin, and migration of outer sheath cells of the hair follicles of domestic sheep were studied by electron microscopic, autoradiographic, and histochemical (glycogen) in order to understand the role of this layer in hair morphogenesis. We demonstrated that the cells of the outer layers of the outer sheath interpose into the inner "companion" layer of the outer sheath. Although this process takes place all along the hair follicle from the lower bulb up to the sebaceous glands orifices, it mainly takes place over the bulb. Labeled cells interposed into the companion layer move towards sebaceous glands orifices more than 24 hours faster than labeled cells of the inner sheath and hair, because these cells included the label not in the bulb cambium (as hair and inner sheath) but over the bulb, and from this point they start movement. Interposition of cells into the companion layer must cause increase of its volume and additional volume supposed to be led away into the pillar canal around the hair near the sebaceous glands orifices. This can provide the mechanism for the propagation of the hair and inner sheath promotion to sebaceous gland orifices.
    Ontogenez 03/2015; 45(6):412-22. DOI:10.1134/S1062360414060095
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    ABSTRACT: The review provides modern classification of evolutionarily conserved coilin-containing nuclear bodies of somatic and germ cells that is based on the characteristic features of their molecular composition and the nature of their functions. The main differences between Cajal bodies and histone locus bodies, which are involved in the biogenesis of small nuclear spliceosomal and nucleolar RNAs and in the 3'-end processing of histone precursor messenger RNA, respectively, are considered. It is shown that a significant contribution to the investigation of the diversity of coilin-containing bodies was made by the studies on the architecture of the RNA processing machinery in oocyte nuclei in a number of model organisms. The characteristics features of the molecular composition of coilin-containing bodies in the nuclei of growing oocytes (the so-called germinal vesicles) of vertebrates, including amphibians and birds, are described.
    Ontogenez 03/2015; 45(6):363-79.
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    ABSTRACT: Data on the morphometric parameters of the renal corpuscle, renal tubules, and collecting ducts of male and female nutrias in postnatal ontogenesis were obtained. It was found that the area of the renal corpuscle, glomerulus, the cavity and lumen of the capsule, and the proximal tubule diameter in the right and left kidney of female and male nutrias in the first year of life increase. The distal tubule diameter also increases; however, the dynamics of its changes becomes sinuous after 4.5 months. The collecting duct diameter varies depending on gender, age, and renal topography. The nuclear-cytoplasmic ratio in the cells of proximal and distal tubules and collecting ducts changes in a sinuous manner and depends on the gender and age of nutrias. The minimum mean value of the nuclear-cytoplasmic ratio was found in the proximal tubule cells in the left kidney of 12-month-old female nutrias (0.162 ± 0.002), and the maximum value was found in the distal tubule cells in the left kidney of newborn male nutrias (0.435 ± 0.007).
    Ontogenez 03/2015; 45(6):423-33. DOI:10.1134/S1062360414060022
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    ABSTRACT: In all representatives of the genus Volvox, cells of cleaving embryos are connected by cytoplasmic bridges, which play an important role in the process of young colony inversion. However, during subsequent development, the intercellular bridges are retained not in all species of Volvox; the occurrence of the bridges in an adult colony correlates withthe small size of mature gonidia (asexual reproductive cells) and with the presence of cell growth in the intervals between divisions. This complex of ontogenetic features is derived and arises independently in three evolutionary lineages of colonial volvocine algae. A putative role of the syncytial state of adult colonies for the evolution of developmental cycles in Volvox is discussed.
    Ontogenez 03/2015; 45(4):280-4.
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    ABSTRACT: A review of our own and literature data on mechanisms of sporoderm development (of the wall of pollen grains and spores) is represented here in the light of colloidal relationships-so-called micellar hypothesis (Gabarayeva and Hemsley, 2006; Hemsley and Gabarayeva, 2007) which suggests the participation of self-assembly in development. The development of the exines (ofsporopollenin-containing part of the sporo- derm) in 5 species from remote taxa has been traced in detail and interpreted as a micellar sequence. The experimental modelling of exine-like structures, carried out in vitro where physico-chemical regularities of colloidal systems (hydrophobic relationships) were the driving motive, is a strong evidence of the relevance of the micellar hypothesis and emphasizes a promising character of these studies. The correlation between ge- nomic control and self-assembly in arrangement of complex biological walls is discussed.
    Ontogenez 03/2015; 45(4):219-39.
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    ABSTRACT: The role of C.F. Wolff, an outstanding anatomist and embryologist, in the development of embryology is described to mark the 280th anniversary of his birth. His life and work were fully elucidated in the book of A.E. Gaisinovich, a famous historian of biology. Although the alternation of preformation and epigenesis is accompanied by a succession of ideas, the boundary between these concepts is clearly retained and depends on many social and cultural factors.
    Ontogenez 03/2015; 46(2):126-8.
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    ABSTRACT: Article reviews the use of embryos and gametes cryopreservation for cryobanking the laboratory animal species. The special emphasis is made on the mechanisms of cryoinjury and cryoprotection during program freezing and vitrification. The species specific cryobanking problems are discussed and the prospects to overcome these problems are outlined.
    Ontogenez 03/2015; 46(2):67-81.

  • Ontogenez 02/2015; 45(3):137.
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    ABSTRACT: This paper presents a brief survey and preliminary classification of embryonic cleavage patterns in the class Amphibia. We use published data on 41 anuran and 22 urodele species concerning the character of the third cleavage furrow (latitudinal or longitudinal) and the stage of transition from synchronous to asynchronous blastomere divisions in the animal hemisphere (4-8-celled stage, 8-16-celled stage or later). Based on this, four patterns of amphibian embryonic cleavage are recognized, and an attempt to elucidate the evolutionary relationships among these patterns is undertaken. The so-called "standard" cleavage pattern (the extensive series of synchronous blastomere divisions including latitudinal furrows of the third cleavage) with the typical model species Ambystoma mexicanum and Xenopus laevis seems to be derived and probably originated independently in the orders Anura and Caudata. The ancestral amphibian cleavage pattern seems to be represented by species with longitudinal furrows of the third cleavage and the loss ofsynchrony as early as the 8-celled stage (such as in primitive urodele species from the family Cryptobranchidae).
    Ontogenez 02/2015; 45(1):3-13.