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Wyświetlanie 1-15 z 343
Tytuł:
Induced isozyme polymorphism in spring barley mutants
Autorzy:
Kucharska, M
Maluszynski, M
Powiązania:
https://bibliotekanauki.pl/articles/2047711.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
polymorphism
isoenzyme
barley
induced mutant
mutant
Opis:
The usefulness of mutagenic treatment to enlarge isozymic variability of barley and the use of induced mutants for genetic analysis were evaluated. N-methyl-N-nitroso urea, sodium azide and gamma rays were employed as mutagenic agents. Electrophoretic assays of 3848 M₂ seedlings obtained by chemical mutagenic treatment of the spring barley cultivars Dema, Aramir, Bielik and 3100 M₂ seedlings obtained by physical mutagenic treatment of the cv. Dema revealed 70 isozymic mutants, which represent 30 separate mutants in 25 M₁ plants. Most of mutations (27) were induced by chemical mutagen at polymorphic esterase loci. The occurrence of induced mutants at monomorphic loci, Got2 and Lap2, made it possible to perform genetic analysis of those loci in barley including mapping respective genes within chromosomes.
Źródło:
Journal of Applied Genetics; 1996, 37, 1; 1-9
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polymorphism - prose of Java programmers
Autorzy:
Spławski, Zdzisław
Powiązania:
https://bibliotekanauki.pl/articles/764549.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2006, 4, 1
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polymorphism of Cepaea nemoralis (L., 1758) in Warsaw
Autorzy:
Pomagalski, R.
Powiązania:
https://bibliotekanauki.pl/articles/83277.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
land snail
snail
polymorphism
grove snail
brown-lipped snail zob.grove snail
Cepaea nemoralis
Warsaw city
Źródło:
Folia Malacologica; 2016, 24, 1
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological diversity and dna polymorphism of common oat (Avena sativa L.) landraces cultivated in Poland.
Autorzy:
Nowosielska, Dorota
Nowosielski, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/2199164.pdf
Data publikacji:
2008-12-21
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
common oat
DNA polymorphism
landraces
morphological traits
Opis:
The aim of the work was characterization of morphological diversity and DNA polymorphism of common oat landraces. 25 Morphological traits and DNA polymorphism have been examined using AFLP methods. It has been found, that identification of oat landraces is possible based on the examined morphological traits. The examined accessions were differentiated by traits important for intraspecific taxonomy of oat: type of panicle, presence of awns, colour of grain, as well as other morphological traits, such as shape of panicle, rigidity of stem leaves, and type of awns. Relationships of morphological traits of leaves, grains, and stem with some DNA fragments suggesting presence of molecular markers of these morphological traits have been found. Morphological similarity of landraces doesn’t correspond to affinity complied with DNA similarity of these objects...
Źródło:
Plant Breeding and Seed Science; 2008, 58; 11-22
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monadic Printing Revisited
Autorzy:
Grzanek, K.
Powiązania:
https://bibliotekanauki.pl/articles/108664.pdf
Data publikacji:
2016
Wydawca:
Społeczna Akademia Nauk w Łodzi
Tematy:
functional programming
monads
Haskell
polymorphism
Opis:
Expressive and clear implementation of monadic printing requires an amount of work to define and design proper abstractions to rely upon when performing the actual programming works. Our previous realization of tree printing library left us with a sense of lack with respect to these considerations. This is why we decided to re-design and re-implement the library with core algorithms based upon new, effective and expressive text printing and concatenation routines. This paper presents the results of our work.
Źródło:
Journal of Applied Computer Science Methods; 2016, 8 No. 1; 66-79
1689-9636
Pojawia się w:
Journal of Applied Computer Science Methods
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Current problems in the research of Cepaea polymorphism
Autorzy:
Ozgo, M.
Powiązania:
https://bibliotekanauki.pl/articles/84741.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Opis:
Shell polymorphism in the land snails of the genus Cepaea has been studied for more than a century. Although these studies have taught us much about the ways in which evolutionary forces work at the population level, many problems are still unresolved. Studies of shell polymorphism, especially in populations living at the edges of the species’ geographical distribution, long-term surveys of morph frequencies in selected populations, studies of the dispersal abilities of Cepaea snails and of differences in physiology and behaviour among morphs will help to answer outstanding questions, which have direct relevance to our understanding of microevolutionary processes generally.
Źródło:
Folia Malacologica; 2008, 16, 2
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expression and polymorphism of defensins in farm animals
Autorzy:
Bagnicka, Emilia
Strzałkowska, Nina
Jóźwik, Artur
Krzyżewski, Józef
Horbańczuk, Jarosław
Zwierzchowski, Lech
Powiązania:
https://bibliotekanauki.pl/articles/1040309.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
farm animals
expression
defensins
polymorphism
Opis:
Due to their activity against bacteria, viruses, and fungi, antimicrobial peptides are important factors in the innate resistance system of humans and animals. They are called "new generation antibiotics" for their potential use in preventive and therapeutic medicine. The most numerous group of antimicrobial peptides is a family of cationic peptides which include defensins and cathelicidins. Among them the most common are peptides with a beta-sheet structure containing three intra-molecular disulphide bonds, called defensins, comprising three classes: alpha, beta, and theta. The class of beta-defensins is the largest one. Their transcripts have been found in many tissues of humans and animals. The aim of this paper is to present the current knowledge about antimicrobial peptides from the defensin family in farm animals, their expression, polymorphism, as well as the potential of their use as genetic markers of health and production traits.
Źródło:
Acta Biochimica Polonica; 2010, 57, 4; 487-497
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polymorphism in Syringa rDNA regions assessed by PCR technique
Autorzy:
Smolik, M.
Andrys, D.
Franas, A.
Krupa-Malkiewicz, M.
Malinowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/41641.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
polymorphism
lilac
Syringa
rDNA region
polymerase chain reaction
Opis:
The Syringa genus is characterizedby a multiplicity of forms. Its chief asset is the ornamental value of thousands of accessions, species or hybrids. From a phylogenetic point of view the genus is difficult in an explicit classification due to its frequently complex genome. The aim of this study was to determine the possibility for the identification of genotypic diversity and genetic relationships in the nrDNA sequence of some selected Syringa accessions – part of a collection of the Dendrological Garden in Przelewice (Poland). For this purpose, the PCR technique together with a combination of various ‘universal’ primers designed for the nrDNA sequence analysis were employed. Fourteen Syringa accessions: Syringa × chinensis Willd., S. × prestoniae Mc Kelv., S. × prestoniae ‘Telimena’, S. × prestoniae ‘Jaga’, S. × prestoniae ‘Basia’, S. meyeri ‘Palibin’, S. vulgaris ‘Miss Ellen Willmott’, S. vulgaris, S. vulgaris ‘Jules Simon’, S. vulgaris ‘Katherine Havemeyer’, S. vulgaris ‘Krasawica Moskvy’, S. vulgaris ‘Mirabeau’, S. vulgaris ‘Madame Lemoine’ and S. vulgaris ‘Niebo Moskvy’ made up the research material. In the conducted amplifications, genetic profiles were obtained for 14 combinations among the 25 combinations of different pairs of primers used. The nrDNA templates coding the small subunit (SSU), 5.8S subunit andITS1, ITS2 andIGS sequences were amplified. In PCR reactions a total of 33 PCR products were generated, of which 21 (64%) products were polymorphic, 6 (18%) monomorphic and6 (18%) were genotype-specific. For the lilac accessions examined246 amplicons were generated from ~230 to ~1100 bp in length. The analysis of both the dendrogram and the genetic similarity matrix revealedlow diversity between the examinedaccessions. For most they rangedfrom 70 to 80%, andthe greatest diversity (87%) was foundbetween the S. × prestoniae: ‘Basia’ and‘Telimena’ accessions, while the lowest (57%) was observed between S. vulgaris ‘Katherine Havermeyer’ and S. × chinensis.
Źródło:
Dendrobiology; 2010, 64
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CTRC gene polymorphism may increase pancreatic cancer risk – preliminary study
Autorzy:
Głuszek, Stanisław
Kowalik, Artur
Kozieł, Dorota
Wawrzycka, Iwona
Głuszek-Osuch, Martyna
Matykiewicz, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/1393315.pdf
Data publikacji:
2017
Wydawca:
Index Copernicus International
Tematy:
pancreatic cancer
CTRC polymorphism
etiology
Opis:
Pancreatic cancer is often fatal due to delayed diagnosis and treatment difficulties. Objective: To analyze selected SPINK1, CTRC, CFTR, and PRSS1 gene mutations in cancer tissue and blood samples of patients with pancreatic tumors. Materials and method: We enrolled 16 consecutive patients diagnosed with pancreatic tumors. We collected cancer tissue, normal pancreatic tissue, and blood samples for genetic tests. The control group consisted of 419 healthy individuals. Peripheral blood samples were collected from all study participants in EDTA-coated tubes. Results: Out of 16 patients with pancreatic tumors, 12 had pancreatic cancer on microscopic examination (mean age, 60.2 years). The CTRC polymorphism Hetero p.G60=(c.180C>T) was found in 5 patients with pancreatic cancer (41.7% vs. 18.6% in the control group). One patient with pancreatic cancer and a positive family history had the SPINK1 (p.N34S) mutation [8.3% vs. 2.9% (12/419) in the control group]. One patient with pancreatic cancer had the CTRC (p.R254W) mutation [8.3% vs. 1% (4/419) in the control group]. Conclusions: Our preliminary results show that the CTRC polymorphism p.G60= (c.180C>T) is frequent in patients with pancreatic cancer. However, further research is needed to verify our findings.
Źródło:
Polish Journal of Surgery; 2017, 89, 5; 48-53
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological Diversity and Dna Polymorphism of Common Oat (Avena Sativa L.) Breeding Varieties Cultivated in Poland
Autorzy:
Nowosielska, Dorota
Nowosielski, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/2199038.pdf
Data publikacji:
2009-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
breeding varieties
common oat
DNA polymorphism
morphological traits
Opis:
The aim of the work was characterization of morphological diversity and DNA polymorphism of common oat breeding varieties. 25 morphological traits and DNA polymorphism have been examined using AFLP and RAPD methods. It has been found, that identification of oat breeding varieties is possible based on the examined morphological traits...
Źródło:
Plant Breeding and Seed Science; 2009, 60; 31-44
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The PPARA gene polymorphism in team sports athletes
Autorzy:
Ahmetov, Ildus I.
Egorova, Emiliya S.
Mustafina, Leysan J.
Powiązania:
https://bibliotekanauki.pl/articles/1054633.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
PARA
game performance
gene polymorphism
sport selection
team sports
Opis:
Peroxisome proliferator-activated receptor α (PPARα) is a transcription factor that regulates lipid and glucose metabolism. Accumulating evidence suggests that the intron 7 C allele of the PPARA gene rs4253778 G/C polymorphism has an advantage for power-oriented athletes, presumably due to the hypertrophic effects on skeletal muscle and increase in glucose utilization in response to anaerobic exercise. The G allele, however, is said to be favorable for the endurance-oriented athletes. The metabolic demands of team sports involve aerobic and anaerobic energy pathways, as a result of the intermittent physical activity. The aim of the present study was to investigate the association between the PPARA gene polymorphism and team-sport athletic status. A total of 665 Russian athletes from 14 team sports and 1,706 controls were involved in the case-control study. We found that the frequency of the PPARA C allele was significantly higher in athletes compared to controls (20.5 vs. 16.4%, P = 0.0009), suggesting that anaerobic rather than aerobic metabolism may be crucial to the game performance in team sports. This means that our study indicates the association between the PPARA gene G/C polymorphism and team-sport athletic status. Although more replication studies are needed, the preliminary data suggest an opportunity to use the analysis of PPARA polymorphism, along with other gene variations and standard phenotypic assessment in team sports selection.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2013, 1, 1; 19-24
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The angiotensin converting enzyme gene i/d polymorphism in Polish rowers
Autorzy:
Jastrzębski, Zbigniew
Leońska-Duniec, Agata
Kolbowicz, Marek
Tomiak, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/1055139.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
ACE I/D polymorphism
athlete status
rowers
sport genetics
Opis:
Angiotensin converting enzyme gene (ACE) is the most frequently investigated genetic marker in the context of genetic conditioning of athletic predispositions. The product of the gene is a key component of the renin-angiotensin system (RAS) and the kallikrein-kinin system (KKS), mainly responsible for the regulation of blood pressure. The main aim of the study was to determine the possible interaction between the ACE I/D polymorphism and endurance athlete status in a group of Polish rowers in comparison with sedentary individuals. 121 male Polish rowers, members of academic sports clubs, and 115 unrelated volunteers, were recruited for the study. The PCR amplification of the insertion (I) or deletion (D) fragment of the ACE gene was performed. Compared with control group, the frequency of the I allele differ significantly from that found in rowers (57.4% vs. 44.3%; P=0.013) and the ACE genotype frequency amongst the whole cohort of rowers (30.6% II, 53.7% ID, 15.7% DD) was also different from expected values (control group 19.1% II, 50.4% ID, 30.4% DD; P=0.017). Our investigation confirms a positive association of the I allele of the ACE gene with endurance athlete status in a group of Polish rowers.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2014, 5, 1; 77-82
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SSCP polymorphism within 5 region of bovine lactoglobulin [LGB] gene
Autorzy:
Kaminski, S
Zabolewicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/2044462.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lactoglobulin gene
polymorphism
SSCP method
cattle
gene transcription
electrophoresis
hormonal receptor
mutation
beta-lactoglobulin
milk
Opis:
In the paper the detection of the SSCP polymorphism within the 5’ fragment of bovine beta-lactoglobulin (LGB) gene is described. The 5’ fragment of LGB gene (209 bp) was PCR-amplified and then subjected to electrophoresis allowing the detection of SSCP polymorphism. Among 124 animals (50 cows and 74 bulls) six SSCP patterns were identified and named Rl, R2, R3, R4, R5 and R6, which occured with the frequency of 0.32, 0.51, 0.09, 0.06, 0.01 and 0.01, respectively. The PCR-SSCP method is simple, fast, and relatively inexpensive. The SSCP polymorphism reported in the paper may be useful in looking for the associations between different SSCP patterns and LGB gene expression and milk properties.
Źródło:
Journal of Applied Genetics; 1998, 39, 1; 97-102
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lack of correlation between X region spa polymorphism and virulence of methicillin resistant and methicillin sensitive Staphylococcus aureus strains
Autorzy:
Kurlenda, Julianna
Grinholc, Mariusz
Szweda, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1040442.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
polymorphism
protein A
spa
virulence
Opis:
Staphylococcus aureus is an etiological factor of severe infections in both hospital and ambulatory environments. As methicillin resistant Staphylococcus aureus strains spread quickly across healthcare centers resulting in life-threatening infections with increased mortality, they are considered more virulent than MSSA strains. Protein A, encoded by the spa gene, is one of the virulence factors involved in the staphylococcal pathogenesis. It has been suggested that the number of 24-bp tandem repeat units along the X region of the spa gene correlates with the virulence level of the strains. The current work analyzed the relationships between the virulence of MRSA and MSSA strains with region X polymorphism. No obvious correlation was observed.
Źródło:
Acta Biochimica Polonica; 2010, 57, 1; 135-138
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Source and significance of genetic polymorphism of selected parasitic Protozoa
Autorzy:
Majewska, A.C.
Sulima, P.
Powiązania:
https://bibliotekanauki.pl/articles/838111.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
polymorphism
control
Giardia
Trypanosoma
epidemiology
evolution
parasite population
Cryptosporidium
Protozoa
Toxoplasma
taxonomy
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 343

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