scholarly journals COMPARATIVE MORPHOLOGICAL CHARACTERISTICS OF NEMATODES OF THE SPECIES MARSHALLAGIA DENTISPICULARIS AND M. SOGDIANA (NEMATODA: TRICHOSTRONGYLIDAE)

2021 ◽  
pp. 282-289
Author(s):  
Kuchboev ◽  
Sobirova

The article presents the results of a comparative morphological analysis of nematodes of the species Marshallagia dentispicularis and M. sogdiana in order to determine the taxonomic position of the species in the system of the genus Marshallagia. The material was collected during dissection of abomasuses of sheep and goats in slaughterhouses in the Bukhara and Tashkent regions, as well as the city of Tashkent. A comparative analysis of the studied individuals of M.dentispicularis and M. sogdiana males found some differences in the shape and structure of the spicule and the dorsal rib. However, the length of the spicules and the dorsal rib, as well as the length and width of the body do not significantly change the range of size variations. Each species is characterized by a rather large genital bursa, there is a rudder, the shape of the lateral plate is conical in M. dentispicularis and bayonet in M. sogdiana. Taking into account some morphological similarities of certain species characteristics that are often found during dissection of animals, it can be assumed that these species are polymorphic forms of one species M. dentispicularis. The expressed doubt requires special molecular and genetic studies of the above species.

2014 ◽  
Vol 48 (6) ◽  
pp. 511-520 ◽  
Author(s):  
N. N Suryadnaya

Abstract The paper first describes in detail the karyotype of Pelobates vespertinus (Pallas, 1771) in comparison with the karyotype of Pelobates fuscus (Laurenti, 1768). Comparative morphological analysis of chromosomes has shown that these two cryptic species have a symmetrical karyotype consisting of two-armed chromosomes. It has been established that their chromosome sets consist of 7 pairs of large chromosomes and 6 pairs of small ones. The species diff er by the position of the centromere in the chromosomes of the 10th and 11th pairs. The 10th pair of P. fuscus is metacentrics, the 11th pair is submetacentric; the 10th pair of P. vespertinus is submetacentric, and the 11th one is metacentrics. Secondary constrictions are on the short arms of the 7th chromosome pair. The chromosomal formula for both species is 4 meta-(m) + 7 submeta-(sm) + 2 subtelocentrics (st), 2n = 26, N.F. = 52. Absolute length of all the chromosomes in the karyotype of P. fuscus is somewhat larger than that one in the karyotype of P. vespertinus. The parameters of relative length are equivalent on average, but they diff er in individual chromosomes. On the background of established chromosomal differences between the cryptic species, reliable diagnostic features have not been identified.


Author(s):  
Bakhodir Kurbanov

This article presents a comparative analysis of morphological and functional changes in the placenta and placental site in pregnant women with various types of hypertensive conditions. The modern ultrastructural methods for the study of the placenta in women with preeclampsia and with a physiological full-term pregnancy have been carried out.


2013 ◽  
pp. 15-19
Author(s):  
Janka Békefi ◽  
András Gáspárdy ◽  
Béla Béri

The Carpathian Braunvieh cattle established by the cross-breeding of the Schweizer Braunvieh and the local breeds of the Carpathian basin approximately 150 years ago. The evolved three usage breed was durable and resistant, however in comparison with the high-productivity breeds was less competitive. The dramatic lay-off, and the endangered status of the breed requires a conservation programme. University of Debrecen took the investigation of the Hungarian population and it’s detailed genetic studies. Within this research project among others we carry out body measurements and rates of the body traits. Depending on these results, we may decide on the subsequent gene-reserving objects. Based on body measurements and live weight we established that the breed at Mikóháza favours to the one lived in Hungary in the 1960’s, and to another, named Ukrainian Carpathian Brown. Compared to the earlier data (Horváth, 1966) smaller body traits can be seen. Our livestock is proportionately smaller than the other breeds in height at withers, as well as in live weight. Based on the comparative analysis, we established, that – thanks to the aware sorting – the imported individuals represent the ancient, primitive Carpathian variant.


Author(s):  
E. A. Zholnerova ◽  
A. V. Vaganov

The work presents a comparative morphological analysis of the distinctive characteristics of the LiliaceaeJuss. family representatives, growing in the Altai Mountain Country based on the materials of Herbaria ALTB and YALT,as well as digital collections NS (NSK), MW, FRU, E, CAS, B and G. Based on the analysis of literary sources, herbariumspecimens and studies of representatives in the environment the main morphological characteristics of species, genera andfamily as a whole have been identified. For representatives of the genus Streptopus Michaux. with the rhizome type ofunderground organs, flat basal leaves and always the presence of inflorescences are common, the fruit is a berry. For somespecies of the genus Gagea Salib. small bulbs are typical, except for one-two-headed (Lilium L., Fritillaria L., TulipaL., Erythronium L. and Lloydia Salisb. ex Rchb.). The color of the corolla is different: from white and yellow to red andpurple. Yellow color of the petals is most common, white forms are less common. The genus Lilium L. is characterized bythe attachment of anthers to the threads in the middle and the presence of specks and specks on the corolla, while in therepresentatives of the remaining genera the anthers are attached with a base. Indicative spots or a checkerboard patternare also noted in the genus Fritillaria L.


Author(s):  
Vatamaniuk N. ◽  

When addressing issues related to the reconstruction or renovation of historic quarters of the city of Chernivtsi, special attention should be paid to the procedure of research of inner quarter spaces. The theoretical basis of the study was a number of works on the specifics of the formation of the architectural image of the central parts of historic cities and problems of urban planning. The aim of the article is to develop a method of research of inner quarter spaces, to determine ways and means of its practical implementation in the disciplines of the Department of Urban Planning, Faculty of Architecture, Engineering, and Decorative and Applied Arts, Yuriy Fedkovych Chernivtsi National University. For the discipline «Regional Architecture of Bukovina» was offered a course project related to the study of inner quarters of Chernivtsi using morphological analysis and the method of «go-along», and entering photos of courtyards in the program GeoSetter, to determine and link their location on the map of Chernivtsi. To conduct morphological analysis of the study, it is necessary to form a universal base of morphological characteristics, which can be used to describe any open space of the city


Author(s):  
Anđela Đošić ◽  
Marija Bratić ◽  
Marko Jezdimirović ◽  
Tijana Purenović-Ivanović ◽  
Danijela Živković ◽  
...  

The aim of the research was to determine the correlation of morphological characteristics and fitness parameters of overweight and obese boys aged seven. The sample of participants consisted of 198 pupils (boys) aged seven years, from elementary schools from the territory of the city of Niš, Paraćin, Bela Palanka, Leskovac and others, classified as a category with increased body mass or obesity. Morphological characteristics were determined by measuring parameters of longitudinal (3), transversal, (3) circular dimensions (3) and body mass and measurement of subcutaneous fat tissue (3). For the assessment of muscular fitness, body composition and cardiorespiratory fitness, the following tests were used: the plyometric leap, precancer-turn-off, percentage of body fat and Body Mass Index (BMI); a shuttle run test based on the calculated VO2max (L) and VO2max (ml/kg/min) values. A canonical correlation analysis was used to determine the correlation between morphological characteristics and fitness parameters. The level of statistical significance was set at .05. The results of the study showed that there is a statistically significant association (p˂.01) between morphological characteristics and fitness parameters in overweight and obese boys aged seven. Participants who have higher values of voluminosity and body width have higher values of fat percentage in the body as well as BMI. Smaller explosive power was found in participants with higher values of skin folds. It has been determined that body mass and voluminosity positively affects the strength of the arm and shoulders, that is, they adversely affect the VO2max values.


2021 ◽  
Vol 97 (1) ◽  
pp. 21-54 ◽  
Author(s):  
Vladislav A. Gorin ◽  
Mark D. Scherz ◽  
Dmitriy V. Korost ◽  
Nikolay A. Poyarkov

The genus Microhyla Tschudi, 1838 includes 52 species and is one of the most diverse genera of the family Microhylidae, being the most species-rich taxon of the Asian subfamily Microhylinae. The recent, rapid description of numerous new species of Microhyla with complex phylogenetic relationships has made the taxonomy of the group especially challenging. Several recent phylogenetic studies suggested paraphyly of Microhyla with respect to Glyphoglossus Günther, 1869, and revealed three major phylogenetic lineages of mid-Eocene origin within this assemblage. However, comprehensive works assessing morphological variation among and within these lineages are absent. In the present study we investigate the generic taxonomy of Microhyla–Glyphoglossus assemblage based on a new phylogeny including 57 species, comparative morphological analysis of skeletons from cleared-and-stained specimens for 23 species, and detailed descriptions of generalized osteology based on volume-rendered micro-CT scans for five species–altogether representing all major lineages within the group. The results confirm three highly divergent and well-supported clades that correspond with external and osteological morphological characteristics, as well as respective geographic distribution. Accordingly, acknowledging ancient divergence between these lineages and their significant morphological differentiation, we propose to consider these three lineages as distinct genera: Microhylasensu stricto, Glyphoglossus, and a newly described genus, Nanohylagen. nov.


Author(s):  
Mohammed Hamad Almannaa ◽  
Huthaifa I. Ashqar ◽  
Mohammed Elhenawy ◽  
Mahmoud Masoud ◽  
Andry Rakotonirainy ◽  
...  

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