Heteromorphic sex chromosome system with an exceptionally large Y chromosome in a catfish Steindachneridion sp. (Pimelodidae).

abstract：:Peroxisomes are cell organelles that perform multiple functions in the metabolism of lipids and of reactive oxygen species. They are present in most eukaryotic cells. However, they are believed to be absent in spermatozoa and they have never been described in male germ cells. We have used the immortalized germ cell li...

journal_title：Cytogenetic and genome research

authors： Lüers GH,Schad A,Fahimi HD,Völkl A,Seitz J

更新日期：2003-01-01 00:00:00

abstract：:In animals, supernumerary chromosomes and their evolution have mostly been studied in sexual reproducing species. In the present study, for the first time, the natural distribution and stability of supernumerary microchromosomes were investigated in the unisexual fish species Poecilia formosa. Natural habitats through...

journal_title：Cytogenetic and genome research

authors： Lamatsch DK,Nanda I,Schlupp I,Epplen JT,Schmid M,Schartl M

更新日期：2004-01-01 00:00:00

abstract：:The T2 family of miniature inverted-repeat transposable elements (T2-MITE) is a prevalent MITE family found in both Xenopus(Silurana) tropicalis and X. laevis. Some subfamilies, particularly T2-A1 and T2-C, may have originated prior to the diversification of the 2 Xenopus lineages and currently include active members ...

journal_title：Cytogenetic and genome research

authors： Hikosaka A,Uno Y,Matsuda Y

更新日期：2015-01-01 00:00:00

abstract：:The solute carrier family 26, member 2 (SLC26A2) gene belongs to a family of multifunctional anion exchangers. Mutations in the human SLC26A2 gene are associated with autosomal recessively inherited chondrodysplasias. Hence, we postulate that the equine SLC26A2 could be a candidate gene for conformational traits in ho...

journal_title：Cytogenetic and genome research

authors： Hansen M,Knorr C,Hall AJ,Broad TE,Brenig B

更新日期：2007-01-01 00:00:00

abstract：:The nuclear organization of spermatocytes in meiotic prophase I is primarily determined by the synaptic organization of the bivalents that are bound by their telomeres to the nuclear envelope and described as arc-shaped trajectories through the 3D nuclear space. However, over this basic meiotic organization, a spermat...

journal_title：Cytogenetic and genome research

authors： Berrios S

更新日期：2017-01-01 00:00:00

abstract：:We have investigated the karyotype relationships of two oriental voles, i.e. the Yulong vole (Eothenomys proditor, 2n = 32) and the large oriental vole (Eothenomys miletus, 2n = 56) as well as the Clarke's vole (Microtus clarkei, 2n = 52), by a combined approach of cross-species chromosome painting and high-resolution...

journal_title：Cytogenetic and genome research

authors： Li T,Wang J,Su W,Yang F

更新日期：2006-01-01 00:00:00

abstract：:Reciprocal translocations pose a serious problem in pig breeding due to the reduced fertility of the carriers. This paper presents a new reciprocal translocation in a phenotypically normal, but hypoprolific (20% reduction) boar. Chromosome banding as well as the FISH technique with the use of BAC and telomeric probes ...

journal_title：Cytogenetic and genome research

authors： Kociucka B,Szczerbal I,Bugaj S,Orsztynowicz M,Switonski M

更新日期：2014-01-01 00:00:00

abstract：:A single female with 206 chromosomes and another 26 females with 156 chromosomes identified as Prussian carp, Carassius gibelio, and 5 individuals with 100 chromosomes identified as crucian carp, C. carassius, were sampled during field survey in one locality in the upper Elbe River. To identify the origin of females w...

journal_title：Cytogenetic and genome research

authors： Knytl M,Kalous L,Symonová R,Rylková K,Ráb P

更新日期：2013-01-01 00:00:00

abstract：:The molecular structure of the exceptional telomeres of six plant species belonging to the order Asparagales and two species of the order Liliales was analyzed using Southern blot and fluorescence in situ hybridization. Three different situations were found, namely: i) In the two Liliales species, Tulipa australis (Li...

journal_title：Cytogenetic and genome research

authors： de la Herrán R,Cuñado N,Navajas-Pérez R,Santos JL,Ruiz Rejón C,Garrido-Ramos MA,Ruiz Rejón M

更新日期：2005-01-01 00:00:00

abstract：:The aim of this review is to describe the level of intimacy between Ty retrotransposons (Ty1-Ty5) and their host the yeast Saccharomyces cerevisiae. The effects of Ty location in the genome and of host proteins on the expression and mobility of Ty elements are highlighted. After a brief overview of Ty diversity and ev...

journal_title：Cytogenetic and genome research

authors： Lesage P,Todeschini AL

更新日期：2005-01-01 00:00:00

abstract：:Phaseolus vulgaris has two 5S rDNA sites in chromosomes 6 and 10 and from two up to nine 45S rDNA sites depending on the accession. The presence of three 45S rDNA sites, in chromosomes 6, 9 and 10, is considered the ancestral state for the species. For P. lunatus, only one 5S and one 45S rDNA sites in distinct chromos...

journal_title：Cytogenetic and genome research

authors： Almeida C,Pedrosa-Harand A

更新日期：2011-01-01 00:00:00

abstract：:Transposable elements have driven genome evolution and plasticity in many ways across a range of organisms. Different types of biotic and abiotic stresses can stimulate the expression or transposition of these mobile elements. Here, we cytogenetically analyzed natural fish populations of the same species living under ...

journal_title：Cytogenetic and genome research

authors： da Silva FA,Corrêa Guimarães EM,Carvalho NDM,Ferreira AMV,Schneider CH,Carvalho-Zilse GA,Feldberg E,Gross MC

更新日期：2020-01-01 00:00:00

abstract：:The osprey (Pandion haliaetus) has a diploid number of 74 chromosomes, consisting of a large number of medium-sized macrochromosomes and relatively few microchromosomes; this differs greatly from the typical avian karyotype. Chromosome painting with chicken DNA probes revealed that the karyotype of P. haliaetus differ...

journal_title：Cytogenetic and genome research

authors： Nishida C,Ishishita S,Yamada K,Griffin DK,Matsuda Y

更新日期：2014-01-01 00:00:00

abstract：:In 1957/58 the British Government conducted a series of nuclear tests in the mid-Pacific codenamed Operation Grapple, which involved several naval vessels from Britain and New Zealand. Two New Zealand frigates with 551 personnel onboard were stationed at various distances between 20 and 150 nautical miles from ground ...

journal_title：Cytogenetic and genome research

authors： Wahab MA,Nickless EM,Najar-M'kacher R,Parmentier C,Podd JV,Rowland RE

更新日期：2008-01-01 00:00:00

abstract：:Chromosomes in hymenopteran insects cannot currently be analysed in adult individuals. The only available cytogenetic techniques need to be performed in larvae. Here we develop and implement a SCAR (Sequence Characterized Amplified Region) marker, associated with B chromosomes in the bee Partamona helleri, which has p...

journal_title：Cytogenetic and genome research

authors： Tosta VC,Tavares MG,Fernandes-Salomão TM,Barros EG,Campos LA,Camacho JP

更新日期：2007-01-01 00:00:00

abstract：:B chromosomes are now known in eight Brazilian rodent species: Akodon montensis, Holochilus brasiliensis, Nectomys rattus, N. squamipes, Oligoryzomys flavescens, Oryzomys angouya, Proechimys sp. 2 and Trinomys iheringi. Typically these chromosomes are heterogeneous relative to size, morphology, banding patterns, prese...

journal_title：Cytogenetic and genome research

authors： Silva MJ,Yonenaga-Yassuda Y

更新日期：2004-01-01 00:00:00

abstract：:We analyzed the DNA amount in X and B chromosomes of 2 XX/X0 grasshopper species (Eyprepocnemis plorans and Locusta migratoria), by means of Feulgen image analysis densitometry (FIAD), using previous estimates in L. migratoria as standard (5.89 pg). We first analyzed spermatids of 0B males and found a bimodal distribu...

journal_title：Cytogenetic and genome research

authors： Ruiz-Ruano FJ,Ruiz-Estévez M,Rodríguez-Pérez J,López-Pino JL,Cabrero J,Camacho JP

更新日期：2011-01-01 00:00:00

abstract：:The non-random positioning of chromosome territories (CTs) in lymphocyte cell nuclei has raised the question whether systematic chromosome-chromosome associations exist which have significant influence on interchange rates. In such a case the spatial proximity of certain CTs or even of clusters of CTs is expected to i...

journal_title：Cytogenetic and genome research

authors： Kreth G,Finsterle J,Cremer C

更新日期：2004-01-01 00:00:00

abstract：:X chromosome inactivation and DNA methylation are reviewed, with emphasis on the contributions of Susumu Ohno and the predictions made in my 1975 paper (Riggs, 1975), in which I proposed the "maintenance methylase" model for somatic inheritance of methylation patterns and suggested that DNA methylation would be involv...

journal_title：Cytogenetic and genome research

authors： Riggs AD

更新日期：2002-01-01 00:00:00

abstract：:Despite extensive analyses on the centromere and its associated proteins, detailed studies of centromeric DNA structure have provided limited information about its topography in condensed chromatin. We have developed a method with correlative fluorescence light microscopy and atomic force microscopy that investigates ...

journal_title：Cytogenetic and genome research

authors： Khan WA,Chisholm R,Tadayyon S,Subasinghe A,Norton P,Samarabandu J,Johnston LJ,Knoll JH,Rogan PK

更新日期：2013-01-01 00:00:00

abstract：:Variations of gene copy number in the human genome are increasingly recognized as a genetic factor in phenotypic variation. Human CC chemokine ligand 3-like 1 gene (CCL3L1), which is located on human chromosome 17q11.2, is highly variable in copy number owing to having a hot spot for segmental duplications. CCL3L1, a ...

journal_title：Cytogenetic and genome research

authors： Nakajima T,Kaur G,Mehra N,Kimura A

更新日期：2008-01-01 00:00:00

abstract：:New data are presented on the sex chromosomes of the fish species Eigenmannia virescens (Gymnotiformes, Sternopygidae). A new finding, involving the occurrence of ZZ/ZW sex chromosomes, is described in specimens sampled from the São Francisco and Amazon river basins in Brazil. All individuals had a chromosome number o...

journal_title：Cytogenetic and genome research

authors： de Almeida-Toledo LF,Daniel-Silva MF,Moysés CB,Fonteles SB,Lopes CE,Akama A,Foresti F

更新日期：2002-01-01 00:00:00

abstract：:For normal transition through meiosis, chromosomes rely on pairing with their homologues. Chromosomes which fail to pair, univalents, behave irregularly and may undergo various types of breakage across their centromeres. Here, we analyzed the meiotic behavior of misdivision products themselves: isochromosomes and telo...

journal_title：Cytogenetic and genome research

authors： Kopecky D,Lukaszewski AJ

更新日期：2019-01-01 00:00:00

abstract：:Deletions in the short arm of chromosome 12 are the rarest subtelomeric imbalances. Less than 20 patients have been reported to date, and their microdeletions were identified either by FISH or array-CGH without SNP data. Here, we report a patient with a 12p13.32pter mosaic deletion detected by chromosome microarray an...

journal_title：Cytogenetic and genome research

authors： Faria RS,de Oliveira CP,da Costa MM,da S Rosa MT,Córdoba MS,Pic-Taylor A,Ferrari I,de Oliveira SF,Mazzeu JF

更新日期：2016-01-01 00:00:00

abstract：:Proximal 6q deletions have a milder phenotype than middle and distal 6q deletions. We describe 2 patients with non-overlapping deletions of about 15 and 19 Mb, respectively, which subdivide the proximal 6q region into 2 parts. The aberrations were identified using karyotyping and analysed using mBAND and array CGH. Th...

journal_title：Cytogenetic and genome research

authors： Vlckova M,Trkova M,Zemanova Z,Hancarova M,Novotna D,Raskova D,Puchmajerova A,Drabova J,Zmitkova Z,Tan Y,Sedlacek Z

更新日期：2012-01-01 00:00:00

abstract：:We review our progress using genomics approaches to examine key antiviral defenses of the White Pekin mallard duck, Anas platyrhynchos. Our interest stems from the fact that ducks are the natural host of avian influenza, and are an important animal model for hepatitis B research. First, we have conducted an expressed ...

journal_title：Cytogenetic and genome research

authors： MacDonald MR,Veniamin SM,Guo X,Xia J,Moon DA,Magor KE

更新日期：2007-01-01 00:00:00

abstract：:Only mammals have relinquished parthenogenesis as a means of producing descendants. Bi-parental reproduction is necessary due to parent-specific epigenetic modification of the genome during gametogenesis, which leads to non-equivalent expression of imprinted genes from the maternal and paternal alleles. However, a ser...

journal_title：Cytogenetic and genome research

authors： Kono T

更新日期：2006-01-01 00:00:00

abstract：:Sex-determining mechanisms (SDMs) set an individual's sexual fate by its genotype (genotypic sex determination, GSD) or environmental factors like temperature (temperature- dependent sex determination, TSD), as in turtles where the GSD "trigger" remains unknown. SDMs co-evolve with turtle chromosome number, perhaps be...

journal_title：Cytogenetic and genome research

authors： Lee L,Montiel EE,Navarro-Domínguez BM,Valenzuela N

更新日期：2019-01-01 00:00:00

abstract：:The INRA and the CHORI-241 horse BAC libraries were screened by hybridization with DNA probes and/or directly by PCR with primers designed in consensus sequences of genes localized at the end of each human chromosome. BAC clones were retrieved and 36 could be FISH mapped after the expected gene was confirmed in each B...

journal_title：Cytogenetic and genome research

authors： Perrocheau M,Boutreux V,Chadi-Taourit S,Di Meo GP,Perucatti A,Incarnato D,Cribiu EP,Guérin G,Iannuzzi L

更新日期：2005-01-01 00:00:00

abstract：:The human male specific expressed gene families CDY and DAZ are known to be repetitively clustered in the Y-specific region of the human Y chromosome. Comparative FISH-mapping of DNA clones specific for CDY and DAZ resulted in a Y-specific but diverse signal pattern within the non-recombining region of the Y-chromosom...

journal_title：Cytogenetic and genome research

authors： Wimmer R,Kühl H,Röttger S,Schempp W

更新日期：2002-01-01 00:00:00