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nr 3-4
115-120
EN
The karyotype of the mallard duck, Anas platyrhynchos, was characterised on the basis of R and C bands. Chromosomal preparations obtained from in vitro blood lymphocyte cultures were RBG- and CBG-stained. The structures of nine and 14 pairs of chromosomes were analysed by the RBG and CBG chromosome banding techniques, respectively. The location of R bands, as well as the size and arrangement of constitutive heterochromatin blocks were determined. Ideograms of R and C banded patterns of the analysed chromosomes were drawn. The morphological makeup of the analysed chromosomes was assessed.
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nr 3-4
213-217
EN
The karyotype structure of Laena reitteri is described for the first time. The chromosome number 2n=18+1-3B and meioformula n%=8+Xyp+1-3B deviates from the modal tenebrionid number. The karyotype exhibits low variation in morphology and length. The diploid set consists of four long (subtelocentric and acrocentric), twelve medium-sized acrocentric autosomes and sex heterochromosomes Xy. The X chromosome is submeta- centric, while the y is acrocentric and the smallest element of the set. On mitotic and meiotic plates 1-3 small additional elements are also visible, and probably represent B The NORs are very active at mitotic prophase and early meiotic stages.
EN
Karyotypes and C-banding patterns of four species belonging to three genera of the subfamily Phaneropterinae were studied. The basic karyotype of Isophya kalishevskii, Polysarcus zacharovi, and Poecilimon ukrainicus consists of 2n=31(XO) in the male. The chromosome number of Isophya hemiptera is 2n%=28+neo-X+neo-Y as a result of mutual tandem translocation between the originally acrocentric X-chromosome and acrocentric medium size autosome. Analysis of the meiotic behaviour of the neo-X and neo-Y demonstrated a post-reductional division of these chromosomes.
EN
Karyotypes and morphology of the male reproductive system of seven species of Psylloidea (Trioza abdominalis, T. cirsii, T. dispar, T. flavipennis, T. munda, T. senecionis, and Bactericera femoralis) were described for the first time.
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nr 1-2
37-42
EN
The karyotype of the domestic goose A. cygnoides was characterised on the basis of R and C bands. Chromosomal preparations obtained from an in vitro culture of blood lymphocytes were stained by means of the RBG and CBG banding techniques. The first nine pairs of chromosomes were analysed by the R banding technique, while fourteen pairs of chromosomes were analysed by the C banding technique. The localisation of R bands as well as the sizes and positions of constitutive heterochromatin blocks were determined. Ideograms of R and C banded patterns for the analysed chromosomes were drawn. The morphological make-up of the analysed chromosomes was assessed.
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nr 1-2
51-53
EN
A comparative karyotype analysis of two populations of Podisma sapporensis showed that :2n male=22 + XO and 2n female = 22 + XX, the X chromosomes are subacrocentric as a result of the inversion within a population derived from Sakhalin; 2n male=20 + neo-X+neo-Y and 2nfemale=20 + neo-XX, as a ersult of X autosome translocation in population from the Kurile Islands (Kunashir).
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tom 57
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nr 1-2
43-48
EN
A cytogenetic study was conducted on two species of the genus Pimelodus that were collected from the Piquiri river, Paran?, Brazil: Pimelodus paranaensis and Pimelodus heraldoi. Both had a diploid number of 2n=56 chromosomes and a fundamental number (FN) of 104. In P. paranaensis, the karyotype consisted of 22m+22sm+4st+8a chromosomes, whereas the karyotype of P. heraldoi consisted of 18m+24sm+6st+8a. The AgNORs were localized in the terminal region of the long arm in one pair of subtelocentric chromosomes, pair 24 in P. paranaensis and pair 23 in P. heraldoi. The latter species showed size heteromorphism of these regions between the chromosome homologues. Heterochromatin was distributed mainly in the terminal regions in the two species. CMA3-positive staining was observed in some chromosomes, besides being associated with NORs, which were all DAPI-negative, in both species of Pimelodus. C-banding plus CMA3 and DAPI showed that most of the heterochromatic regions were rich in AT bases in P. paranaensis and P. heraldoi.
EN
Meiotic karyotypes were studied in males of Craspedolepta sonchi (Foerster, 1848), Diaphorina chobauti Puton, 1898, D. lamproptera Burckhardt, 1981, Psylla hartigii Flor, 1861, Cacopsylla palmeni (Loew, 1878), C. hippophaes (Foerster, 1848), C. melanoneura (Foerster, 1868), C. pyricola (Foerster 1848), C. moscovita (Andrianova, 1848), Bactericera salicivora (Reuter, 1876), Trioza abdominalis Flor, 1861, T. lauri = Lauritrioza alacris (Flor, 1861). Karyotypes were 2n = 25 (24 + XO) in all species except B. salicivora with 2n = 26 (24 + neo-XY). Testes consisted of two follicles each in all species but P. hartigii with four-follicular testes in males. The discussion covers the problems of chromosome numbers, sex-determining chromosome systems, B-chromosomes, patterns of C- banding, testis structure, and spermatid development in Psylloidea.
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nr 1-2
55-59
EN
Six species from six genera of the Oxycareninae were investigated.Males of all examinated species have 2 elongate follicles in each of the paired testes and an unpaired branched mesadenial gland.Four of them hsve 14 autosomes in the set.Two other pecies have 12 autosomes, one autosomal pair being larger than the others.The last two genera are monotypic and have similar morphological characters.In all the examined species there is a pair of m-chromosomes, situated separately or as a pseudobivalent during mataphase 1 of meiosis, found in all the investigated cells near to the sex (XY) chromosomes.
EN
Karyotypes and C-heterochromatin distribution of Deracanthina deracanthoides, Deracanthella verrucosa and Zichya baranovi were studied. Differences in the chromosome numbers, their morphology, and the position of C-bands between species of Bradyporinae are discussed.
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2005
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tom 53
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nr 1-2
69-74
EN
first time. The diploid chromosome numbers of males were found to be 2n=61 in L. pilosus, 2n=69 in L. siculus and 2n=73 in L. cretonatus. Karyotypes of all species mainly consist of biarmed chromosomes; the sex chromosome system is X0. Remarkably, the X chromosome displays partial (L. cretonatus), or even total (L. pilosus), negative heteropycnosis during the spermatogonial metaphase.
EN
The C-stained karyotypes of five species of three dragonfly families from Western Siberia and Kunashir Island have been analysed. Gomphus epophtalmus Sel., G. vulgatissimus (L.), Nihonogomphus ruptus (Sel. et Hag.) (Gomphidae), and Anotogaster sieboldii (Sel.) (Cordulegasteridae) showed usual character of C-heterochromatin distribution, all chromosomes have terminal C-bands. Somatochlora graeseri Sel. (Corduliidae) has unique for dragonflies type of terminal C-blocks on autosomes. Three pairs of autosomes have the very large heterochromatic blocks, other chromosomes, including the X, have no C-band.
EN
The C-stained karyotypes of Calopteryx splendens (Harris, 1782) (2n%=25, X0, m), Aeschna viridis Eversmann, 1836 (2n%=26, neo-XY, m), Ophiogomphus cecilia (Fourcroy, 1785) (2n%=23, X0), Cordulia aenea (Linnaeus, 1758) (2n%=25, X0), Libellula depressa Linnaeus, 1758 (2n%=25, X0, m), Libellula quadrimaculata Linnaeus, 1758 (2n%=25, X0, m), Orthetrum albistylum Selys, 1848 (2n%=25, X0, m), Orthetrum brunneum (Fonscolombe, 1837) (2n%=25, X0, m) and Sympetrum pedemontanum (Allioni, 1766) (2n%=25, X0, m) from Siberia and the Northern Caucasus have been analysed. All the studied species possess C-bands at both the ends of autosomes, all Libellulinae have an intercalar C-block at largest autosome. C. aenea has the subterminal blocks near the terminal ones. The X is heterochromatic for its entire length in vast majority of species, the original X-part of the neo-XY chromosome in Ae. viridis is also entirely heterochromatic. L. depressa and C. splendens possess the euchromatic X with large terminal C-blocks.
EN
New data on the karyotype structure of five species of the subfamily Eurytominae are escribed, including the following species: Eurytoma rosae (2n=20), E. robusta (n=7, 2n=14), E. serratulae (n=6, 2n=12), E. compressa (2n=10) and Sycophila biguttata (2n=18). 2n=10, 12 and 14 are reported for the first time for the Eurytominae, in which only 2n=20 and 18 have been previously found. The taxonomic and phylogenetic implications of the new chromo- somal information are discussed. Karyotypes containing ten subtelo/acrocentric chromosomes which gradually decrease in size can be considered as initial for the Eurytominae. Eurytoma robusta + (E. serratulae + E. compressa) form a particular clade where all branches are well-supported by morphological, biological and chromosomal a
EN
Meiotic karyotypes in males of 16 species (assigned to 9 genera and 7 subfamilies) of the family Psyllidae and 3 species (assigned to 3 genera of the subfamily Triozinae) of the family Triozidae are described for the first time. The first data on the genus Ligustrinia are presented. All the species were shown to exhibit the modal karyotype for psyllids, 2n = 24 + X, except Bactericera nigricornis and Arytainilla spartiophila, in which 2n = 24 + XY and 2n = 22 + X were found, respectively. The karyotype of Ctenarytaina eucalypti (Psyllidae, Spondyliaspidinae) was reinvestigated, and the karyotype 2n = 10 + X, characteristic of Spondyliaspidinae, was revealed. The karyotypes of Strophingia fallax, S. arborea, and Craspedolepta topicalis were studied using the C-banding technique.
EN
So far, only about 400 species, subspecies, and chromosome races of 15 subfamilies of Tettigoniidae have been studied karyologically, this constituting about 7% of all described species in this group. An attempt was made to establish the basic diploid chromosome numbers of Tettigoniidae and, considering chromosome number, morphology, and the sex determining mechanisms, to suggest how karyotype evolution in the particular subfamilies could have occurred.
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2007
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tom 48
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nr 4
379-382
EN
A new case of reciprocal translocation t(10;13)(q16;q21) was detected in a hybrid boar (Large White ? Pietrain ? Duroc ? Hampshire) from an artificial insemination (AI) station. Altogether, 258 sires of 4 pure breeds as well as hybrid lines and crossbreeds were investigated. The diagnosis was based on classical cytogenetic examination following the standard protocols of lymphocyte cultures, Giemsa staining and G-, C- and Ag-I banding techniques. The population screening performed was an initial part of a long-term karyotype control system of boars kept at AI stations, which was started by the National Research Institute of Animal Production in Poland in 2007.
EN
Pericentric inversion of chromosome 9 involving the qh region is relatively common as a constitutional genetic aberration without any apparent phenotypic consequences. However, it has not been established as an acquired abnormality in cancer. Among the three patients reported so far in the literature with acquired inv(9), only one had acute myeloid leukemia (AML). Here we describe an unique case where both chromosomes 9 presented with an acquired pericentric inversion with breakpoints at 9p13 and 9q12 respectively, in a AML patient with aberrant CD7 and CD9 positivity. Additionally, one der(9) also showed short arm deletion at 9p21 to the centromeric region and including the p16 gene. The constitutional karyotype was normal. This is probably the first report describing an acquired inv(9) involving both chromosomes 9 in AML. The possible significance of this inversion is discussed.
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tom 47
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nr 1-2
13-19
EN
Karyotypes of turbellaria of the genus Geocentrophora (Lecithoepitheliata: Prorhynchidae) from Lake Baikal (Russia): G. wagini (2n=26, NF=36), G. porfirievae, (2n=30, NF=58), G. levanidorum (2n=28, NF=54), G. intersticialis (2n=30, NF=42) and G. incognita (2n=26) are reported for the first time.
EN
Chromosome numbers and C-banding patterns in the spermatogenesis of seven species of Pamphagidae grasshoppers from the Caucasus, Central Asia, and Trabsbaikalia region of Russia are reported. The patterns of origin and evolution of the neo-XY/neo-XX sex determination in Pamphagidae are discussed.
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