Temat: cytogenetic analysis - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Biological diversity of leeches [Clitellata: Hirudinida] based on characteristics of the karyotype
Autorzy:: Cichocka, J.
Bielecki, A.
Powiązania:: https://bibliotekanauki.pl/articles/838553.pdf
Data publikacji:: 2008
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: leech
Clitellata
Hirudinida
internal morphology
external morphology
karyology
biodiversity
cytogenetic analysis
Źródło:: Annals of Parasitology; 2008, 54, 4; 309-314
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Biological diversity of leeches [Clitellata: Hirudinida] based on characteristics of the karyotype
Autorzy:: Cichocka, J.
Bielecki, A.
Powiązania:: https://bibliotekanauki.pl/articles/2143806.pdf
Data publikacji:: 2008
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: leech
Clitellata
Hirudinida
internal morphology
external morphology
karyology
biodiversity
cytogenetic analysis
Opis:: The majority of studies on leeches are related to: internal and external morphology. Fewer molecular research projects focus on molecular studies and karyology. The latter are needed to explain the evolutionary and systematic issues. Karyotypes for 22 species of Hirudinida have hitherto been determined, including: 8 species belonging to the Glossiphoniidae family, 3 species of Piscicolidae, 7 of Erpobdellidae, 1 of Haemopidae and 3 of Hirudinidae. The chromosome number vary among individual groups of leeches. Within Glossiphoniidae the chromosome diploid number ranges from 14 to 32, in Piscicolidae from 20 to 32, in Erpobdelliformes from 16 to 22, and in Hirudiniformes from 24 to 28. The karyological analyses were used to show phylogenetic relations between main groups of Hirudinida, and the diploid number of 16 was suggested to be a primitive value. This number tends to increase as the evolution progresses. The phylogeny scheme of leeches proposed by Mann shows the Glossiphoniidae as primitive to the Piscicolidae, and Hirudinidae as giving rise to the Haemopidae and Erpobdellidae. Those hypotheses are herewith confronted with morphological, molecular, karyological, ecological and behavioral data.
Źródło:: Wiadomości Parazytologiczne; 2008, 54, 4; 309-314
0043-5163
Pojawia się w:: Wiadomości Parazytologiczne
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Comparative cytogenetic analysis of diploid and hexaploid Chenopodium album Agg.
Autorzy:: Kolano, B
Siwinska, D.
Maluszynska, J.
Powiązania:: https://bibliotekanauki.pl/articles/56512.pdf
Data publikacji:: 2008
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: cytogenetic analysis
diploid
hexaploid
Chenopodium album
genome size
rDNA sequence
flow cytometry
polysomaty
Opis:: Two cytotypes of Chenopodium album, diploid (2n=2x=18) and hexaploid (2n=6x=54), were analysed using flow cytometry and a FISH experiment. The genome size was indicated as 1.795 pg for the diploid and 3.845 pg for the hexaploid plants which suggested genome downsizing in the evolution of hexaploid cytotype. Double FISH with 25S rDNA and 5S rDNA allowed three to five homologue chromosome pairs to be distinguished depending on the cytotype. The Variation in size and number of rDNA sites between the polyploid C. album and its putative diploid ancestor indicated that rDNA loci underwent rearrangements after polyploidization. Flow cytometry measurements of the relative nuclear DNA content in the somatic tissue of C. album revealed extensive endopolyploidization resulting in tissues comprising a mixture of cells with a different DNA content (from 2C to 32C) in varying proportions. The pattern of endopolyploidy was characteristic for the developmental stage of the plant and for the individual organ. Polysomaty was not observed in the embryo tissues however endopolyploidization had taken place in most tested organs of seedlings. The endopolyploidy in diploid and hexaploid C. album was compared to find any relationship between the pattern of polysomaty and polyploidy level in this species. This revealed that polyploid plants showed a decline in the number of endocycles as well as in the frequency of endopolyploidy cells compared to diploid plants.
Źródło:: Acta Societatis Botanicorum Poloniae; 2008, 77, 4; 293-298
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effects of acetylsalicylic acid and a new pyrazine derivative PD-101 on sister chromatid exchange frequency and cell kinetics in cultured human lymphocytes
Autorzy:: Wozniak, A
Limon, J.
Petrusewicz, J.
Kaliszan, R.
Powiązania:: https://bibliotekanauki.pl/articles/2044238.pdf
Data publikacji:: 1998
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: pyrazine
cell cycle
human lymphocyte
cytogenetic analysis
sister chromatid exchange
kinetics
chromosome aberration
in vitro
acetylsalicylic acid
Opis:: Acetylsalicylic acid (ASA) and α-2-pyrazylidene-α-cyano N-butyl acetamide (PD-101), a new antiaggregatory pyrazine derivative were tested for their genotoxicity in human lymphocytes in vitro using the sister chromatid exchange (SCE) technique. Both compounds were found to be inactive in inducing SCE in concentration from 1 µM up to 1000 µM. The agents displayed inhibitory effect on cell kinetics.
Źródło:: Journal of Applied Genetics; 1998, 39, 3; 281-287
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Potential genotoxicity of Fusarium mycotoxins in Vicia and Pisum cytogenetic tests
Autorzy:: Packa, D
Powiązania:: https://bibliotekanauki.pl/articles/2048288.pdf
Data publikacji:: 1998
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: mycotoxin
cytogenetic analysis
plant cell
mitosis
cytotoxicity
gene mutation
Fusarium
chromosome
genotoxicity
fusarial toxin
mitotic cell
cytogenetic test
Vicia faba var.minor
morphological analysis
mutagenic behaviour
Pisum sativum
Opis:: Several fusarial toxins (DAS, DON, FUS-X and MON) were assayed for their genotoxic activity with Vicia faba var. minor and Pisum sativum used as eukaryotic, whole-organism, test systems. Four concentrations: 1, 5, 10 and 20 µg mL⁻¹ were applied for 24 hours, and three fixing times: 24, 48 and 72 hours after the beginning of the treatment. Nuclei and chromosomes in mitotic cells were stained by the Feulgen method. Generally, fusarial toxins in plant cells produced three types of effects: prevented proliferating cells from entering mitosis, caused mitotic alterations and were cytotoxic. Mitotic alterations included C-mitoses, a higher incidence of metaphases/anaphases, excessive condensation of chromosomes, multipolar spindles, disturbed anatelophases and micronuclei. Both type and range of each effect were related to plant species, toxin concentration and duration of the recovery period. The results obtained from our plant bioassays were compared with those reported from other assay systems.
Źródło:: Journal of Applied Genetics; 1998, 39, 2; 171-192
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Morphology and developmental potential of bovine parthenotes after spontaneous activation in vitro
Autorzy:: Lechniak, D
Cieslak, D.
Sosnowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/2048294.pdf
Data publikacji:: 1998
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: blastomere
bovine oocyte
cytogenetic analysis
parthenogenetic activation
morphology
in vitro
fertilization system
blastocyst
oocyte
insemination
morphological evaluation
maturation
embryo production
Opis:: Spontaneous parthenogenetic activation of bovine oocytes in an in vitro maturation and fertilization system (IVM/IVF) is described. Altogether, 1403 follicular oocytes, collected by the aspiration method, were matured in vitro and then cultured without insemination in the same conditions as a group of inseminated oocytes. After 48-72 h of additional culture, 141 oocytes (10%) were found to be spontaneously activated. Morphological evaluation revealed that the number of blastomeres within parthenotes ranged from 2 to 16 cells, with a minority (15.7%) comprising of 9-16 blastomeres. According to a cytogenetic analysis, only 1.2% of the analysed parthenotes consisted of more than 9 cells. Parthenotes may not be distinguished from embryos produced in vitro and spontaneous parthenogenetic activation in an IVM/IVF system indicates suboptimal culture conditions. A group of non-inseminated oocytes should be included in each experiment to serve as a control. Spontaneously activated bovine parthenotes only occasionaly developed beyond the 8-blastomere stage in a common IVM/IVF system. The incidence of parthenotes interferes with the efficiency of in vitro embryo production but it is doubtful whether it lowers the pregnancy rate after transfer of IVF embryos.
Źródło:: Journal of Applied Genetics; 1998, 39, 2; 193-198
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Cryptic rearrangements of chromosome 12 in testicular germ cell tumors with or without the specific i[12p] marker
Autorzy:: Grygalewicz, B
Pienkowska-Grela, B.
Woroniecka, R.
Powiązania:: https://bibliotekanauki.pl/articles/2043149.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: aberration
in situ
isochromosome
cytogenetic analysis
microdissection
testicular germ cell tumour
karyotype
cell culture
nonseminoma
fluorescence
hybridization
seminoma
chromosome 12
DNA
Źródło:: Journal of Applied Genetics; 2000, 41, 2; 123-131
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The quantitative PCR technique resolves ambiguities concerning a small rearrangement of human chromosome 6q12-13
Autorzy:: Nowacka, J
Helszer, Z.
Walter, Z.
Plucienniczak, A.
Kaluzewski, B.
Powiązania:: https://bibliotekanauki.pl/articles/2048327.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: duplication
chromosome
human chromosome
man
rearrangement
cytogenetic diagnosis
karyotype analysis
chromosome aberration
polymerase chain reaction
inversion
Źródło:: Journal of Applied Genetics; 2001, 42, 4; 541-545
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Database structure for storing and automatic analysis of text GTG and fish cytogenetic results
Autorzy:: Kostorz, I.
Sikora, M.
Stęclik, T.
Powiązania:: https://bibliotekanauki.pl/articles/333516.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: automatic GTG text analysis
cytogenetic text test
GTG methods
FISH methods
database
cytogenetics
automatic analysis
analiza automatyczna tekstu GTG
test cytogenetyczny tekstu
metoda GTG
metoda FISH
baza danych
cytogenetyka
analiza automatyczna
Opis:: The paper presents research on storing text cytogenetic tests data conducted with GTG and FISH methods for browsing and automatic processing of its string results. It presents analysis of the text cytogenetic test result and a two proposal structures of the databases (the storing data and the analytical one) used for anonymised text GTG and FISH cytogenetic test results storing and their processing. Presented structures were queried with known chromosome aberrations for T-cell acute lymphoblastic leukaemia (T-ALL), B-cell acute lymphoblastic leukaemia (B-ALL) and both T-ALL and B-ALL in the proposed database. Additionally, the analytical database was filled with the set of Mittelman database results and browsed with non-standard queries. Conducted tests demonstrated that the proposed analitical structure is useful for GTG and FISH cytogenetic test results text mining.
Źródło:: Journal of Medical Informatics & Technologies; 2018, 27; 41-48
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Cytogenetic markers of Brassica napus L. chromosomes
Autorzy:: Hasterok, R
Maluszynska, J.
Powiązania:: https://bibliotekanauki.pl/articles/2043142.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: oil seed
in situ
silver staining
chromosome number
morphology
molecular cytogenetics
in vitro
karyotype
rDNA
morphometric analysis
plant breeding
oilseed rape
Brassica napus
somatic hybridization
transformation
cytogenetic marker
fluorescence
hybridization
genomic origin
Źródło:: Journal of Applied Genetics; 2000, 41, 1; 1-9
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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