Chromosome evolution in fish: sex chromosome variability in Eigenmannia virescens (Gymnotiformes: Sternopygidae).

abstract：:The Mx gene was originally found in laboratory mice in an infection experiment using influenza virus (Lindermann, 1962). Almost all of the mouse strains in that experiment died from the infection, and only the A2G strain had resistance to the virus. This resistant character was shown to be inherited as a single autoso...

journal_title：Cytogenetic and genome research

authors： Watanabe T

更新日期：2007-01-01 00:00:00

abstract：:Several patients with 5p duplication or 15q deletion have been reported in the literature, involving different chromosome regions and clinical features. Here, we describe a family in which we identified a 30-Mb 5p15.33p13.3 gain and a 2.5-Mb 15q26.3 loss in 3 individuals, due to a balanced familial translocation betwe...

journal_title：Cytogenetic and genome research

authors： Bellucco FT,Favilla BP,Perrone E,Melaragno MI

更新日期：2020-12-14 00:00:00

abstract：:Scanning electron microscopy (SEM) proves to be an appropriate technique for imaging chromatin organization in meiosis I and II of rye (Secale cereale) down to a resolution of a few nanometers. It could be shown for the first time that organization of basic structural elements (coiled and parallel fibers, chromomeres)...

journal_title：Cytogenetic and genome research

authors： Zoller JF,Hohmann U,Herrmann RG,Wanner G

更新日期：2004-01-01 00:00:00

abstract：:Genets (Genetta) are a genus of African mammalian carnivorans with 14 currently recognized species, although taxonomic uncertainties remain, particularly regarding the number of species within the large-spotted genet complex. This study presents the first banded karyotype and molecular cytogenetic analysis of a geneti...

journal_title：Cytogenetic and genome research

authors： Matoso Silva R,Adega F,Kjöllerström HJ,Labuschagne K,Kotze A,Fernandes C,Chaves R,do Mar Oom M

更新日期：2016-01-01 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：:Birds have a ubiquitous, female heterogametic, ZW sex chromosome system. The current model suggests that the Z chromosome and its degraded partner, the W chromosome, evolved from an ancestral pair of autosomes independently from the mammalian XY male heteromorphic sex chromosomes--which are similar in size, but not ge...

journal_title：Cytogenetic and genome research

authors： Stiglec R,Ezaz T,Graves JA

更新日期：2007-01-01 00:00:00

abstract：:A hitherto undescribed satellite DNA family (AvaII satDNA) has been isolated and characterised in Eumeces schneideri, a squamate reptile belonging to the family Scincidae. AvaII satDNA is characterised by a monomer length of 208 bp, a GC content of 59% and exhibits a certain degree of CpG methylation. FISH experiments...

journal_title：Cytogenetic and genome research

authors： Giovannotti M,Nisi Cerioni P,Caputo V,Olmo E

更新日期：2009-01-01 00:00:00

abstract：:The suborder Serpentes is divided into 2 infraorders, Scolecophidia and Alethinophidia, which diverged at an early stage of snake diversification. In this study, we examined karyotypes of 4 scolecophidian species (Letheobia simonii, Xerotyphlops vermicularis, Indotyphlops braminus, and Myriopholis macrorhyncha) and pe...

journal_title：Cytogenetic and genome research

authors： Matsubara K,Kumazawa Y,Ota H,Nishida C,Matsuda Y

更新日期：2019-01-01 00:00:00

abstract：:The chromosomal band 17q21.31, containing the microtubule-associated protein tau (MAPT) gene, is a hotspot for chromosomal rearrangements. It is known to contain a common inversion polymorphism of approximately 900 kb in populations with European ancestry. The inverted configuration is linked to a distinct MAPT haplot...

journal_title：Cytogenetic and genome research

authors： Rao PN,Li W,Vissers LE,Veltman JA,Ophoff RA

更新日期：2010-01-01 00:00:00

abstract：:The economic and ecological importance of forest trees, as well as their unique biological features, has recently raised the level of interest in studies on their genomes, including sequencing of the entire poplar genome. However, cytogenetic studies have not moved in parallel with developments in genomics. This is es...

journal_title：Cytogenetic and genome research

authors： Ribeiro T,Barão A,Viegas W,Morais-Cecíli L

更新日期：2008-01-01 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：:In birds, females are heterogametic (ZW), while males are homogametic (ZZ). It has been proposed that there is no dosage compensation for the expression of Z-linked genes in birds. In order to examine if the genes are inactivated on one of the two Z chromosomes, we analyzed the allelic expression of the B4GALT1 and CH...

journal_title：Cytogenetic and genome research

authors： Kuroiwa A,Yokomine T,Sasaki H,Tsudzuki M,Tanaka K,Namikawa T,Matsuda Y

更新日期：2002-01-01 00:00:00

abstract：:Studies of complete genomes are leading to a new understanding of the biology of mammals and providing ongoing insights into the fundamental aspects of the organization and evolution of biological systems. Comparison of primate genomes can identify aspects of their organization, regulation and function that appeared d...

journal_title：Cytogenetic and genome research

authors： Ryder OA

更新日期：2005-01-01 00:00:00

abstract：:Geckos (Gekkota) are a highly diversified group of lizards with an exceptional diversity in sex-determining systems. Despite this intriguing documented variability, data on sex determination in many lineages is still scarce. Here, we document the previously overlooked heteromorphic ZZ/ZW sex chromosomes in the thick-t...

journal_title：Cytogenetic and genome research

authors： Pokorná M,Rens W,Rovatsos M,Kratochvíl L

更新日期：2014-01-01 00:00:00

abstract：:Black porgy, Acanthopagrus schlegeli Bleeker, is a marine protandrous hermaphrodite fish. A Dmrt1 cDNA was cloned and characterized and in order to study the process of sex change in this species, mRNA transcripts of Dmrt1 were monitored. Dmrt1 was specifically transcribed in testis and seminal vesicle in 2-year-old b...

journal_title：Cytogenetic and genome research

authors： He CL,Du JL,Wu GC,Lee YH,Sun LT,Chang CF

更新日期：2003-01-01 00:00:00

abstract：:A 41-year-old Asian woman with bilateral renal angiomyolipomas (AML) was incidentally identified to have a balanced translocation, 46,XX,t(11;12)(p15.4;q15). She had no other features or family history to suggest a diagnosis of tuberous sclerosis. Her healthy daughter had the same translocation and no renal AML at the...

journal_title：Cytogenetic and genome research

authors： Thibodeau ML,Steinraths M,Brown L,Zong Z,Shomer N,Taubert S,Mungall KL,Ma YP,Mueller R,Birol I,Lehman A

更新日期：2017-01-01 00:00:00

abstract：:The genus Hypostomus has a broad geographic distribution in Brazilian rivers and comprises armored catfishes with a very complicated taxonomy due to the absence of morphological autapomorphies. The existence of nearly 10 allopatric populations with different karyotypes suggests that Hypostomusancistroides represents a...

journal_title：Cytogenetic and genome research

authors： Rocha-Reis DA,de Oliveira Brandão K,de Almeida-Toledo LF,Pazza R,Kavalco KF

更新日期：2018-09-28 00:00:00

abstract：:Homologous chromosome pairing and recombination are essential components of meiosis and sexual reproduction. The reshuffling of genetic material through breakage and reunion of chromatids ensure proper segregation of homologous chromosomes in reduction division and genetic diversity in the progeny. The advent of somat...

journal_title：Cytogenetic and genome research

authors： Hart EJ,Pinton A,Powell A,Wall R,King WA

更新日期：2008-01-01 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：: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：: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：:It is well known that TP53 may mediate apoptosis triggered by anticancer drugs. However, accumulating evidence indicates that TP53 may be inactivated by mutations and/or deletions in about 50% of human cancers and, as such, may lead to pronounced resistance to therapeutic agents. Thus, the development of new approache...

journal_title：Cytogenetic and genome research

authors： Wang J,Wang XF,Zhang LG,Xie SY,Li ZL,Li YJ,Li HH,Jiao F

更新日期：2009-01-01 00:00:00

abstract：:Variations of DNA sequences in the human genome range from large, microscopically visible chromosome anomalies to single nucleotide changes. Submicroscopic genomic copy number variations, i.e. chromosomal imbalances which are undetectable by conventional cytogenetic analysis, play an intriguing clinical role. In this ...

journal_title：Cytogenetic and genome research

authors： Riccardi F,Rivolta GF,Uliana V,Grati FR,La Starza R,Marcato L,Di Perna C,Quintavalle G,Garavelli L,Rosato S,Sammarelli G,Neri TM,Tagliaferri A,Martorana D

更新日期：2015-01-01 00:00:00

abstract：:To study the origin and evolution of naturally occurring polyploids, we performed phylogenetic analyses of nuclear ribosomal DNA spacers combined with molecular cytogenetics in 55 accessions of 27 taxa of the oat genus Helictochloa. A complex pattern of reticulate evolution was revealed with many diploid species and e...

journal_title：Cytogenetic and genome research

authors： Winterfeld G,Schneider J,Perner K,Röser M

更新日期：2014-01-01 00:00:00

abstract：:Previous genetic mapping identified three linkage groups (M1, M18 and M26) in the turkey corresponding to chicken chromosome 1 (GGA1). This is inconsistent with previously described chromosomal differences between these species. FISH analysis of BAC clones corresponding to microsatellite markers from each of the three...

journal_title：Cytogenetic and genome research

authors： Reed KM,Sullivan LR,Foster LK,Chaves LD,Ponce de León FA

更新日期：2006-01-01 00:00:00

abstract：:The relationship between the apparently random chromosomal changes found in aneuploidy and the genetic instability driving the progression of cancer is not clear. We report a test of the hypothesis that aneuploid chromosomal abnormalities might be selected to preserve cell-survival genes during loss of heterozygosity ...

journal_title：Cytogenetic and genome research

authors： Nestor AL,Hollopeter SL,Matsui SI,Allison D

更新日期：2007-01-01 00:00:00

abstract：:The common fragile sites (CFSs) are large regions of profound genomic instability found in all individuals. A number of the CFSs have been found to span genes that extend over large genomic regions (>700 kb). The expression of these genes is frequently abrogated in a number of different cancers and several of them hav...

journal_title：Cytogenetic and genome research

authors： Soderberg C,Perez DS,Ukpo OC,Liang X,O'Reilly AG,Moore EJ,Kademani D,Smith DI

更新日期：2008-01-01 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

abstract：:The identification of individual dog chromosomes is problematic because the 38 pairs of autosomes are small and acrocentric. Here we describe the design and application of a FISH tool that enables definitive identification of each dog autosome in a normal karyotype, without relying on subjective interpretation of DAPI...

journal_title：Cytogenetic and genome research

authors： Courtay-Cahen C,Griffiths LA,Hudson R,Starkey M

更新日期：2007-01-01 00:00:00

abstract：:This paper reports on the chromosomal location of 18S rRNA, 5S rRNA and H3 histone multigene families in 4 species of a relatively ancient and diversified group of grasshoppers belonging to the family Proscopiidae. The 5S rRNA and H3 histone genes were highly conserved in the number of sites and chromosomal position i...

journal_title：Cytogenetic and genome research

authors： Cabral-de-Mello DC,Martins C,Souza MJ,Moura RC

更新日期：2011-01-01 00:00:00