The presence of an antigen reactive with a human autoantibody in Trichosia pubescens (Diptera: Sciaridae) and its association with certain transcriptionally active regions of the genome.

abstract：:Macronuclear DNA was isolated from Paramecium primaurelia, stock 168. Although the macronucleus is polyploid to the extent of 840C, in other respect the DNA appears to be simply organized, having neither satellite sequences nor substantial amounts of intermediately repetitive sequence. The sequence complexity of macro...

journal_title：Chromosoma

authors： McTavish C,Sommerville J

更新日期：1980-01-01 00:00:00

abstract：:The evolutionary conservation of Y chromosomal DNA sequences of Drosophila hydei in different species of the genus Drosophila was studied by in situ hybridization and on genomic DNA blots of restriction enzyme digested DNA. We demonstrated that Y specific DNA sequences, which form major parts of lampbrush loops relate...

journal_title：Chromosoma

authors： Vogt P,Hennig W,ten Hacken D,Verbost P

更新日期：1986-01-01 00:00:00

abstract：:One of the prominent cell cycle-related modifications of histone proteins whose function remains unresolved is the phosphorylation of linker histone H1. In this work we have used indirect immunofluorescence on human cells with antibodies that are specific for phosphorylated histone H1 to examine the cellular distribut...

journal_title：Chromosoma

authors： Boggs BA,Allis CD,Chinault AC

更新日期：2000-03-01 00:00:00

abstract：:An unstable minichromosome comprising part of the short arm of chromosome 10 of maize was recovered from an oil yellow variegated plant as a consequence of gamma irradiation of pollen. The cytological and gene dosage observations are consistent with the minichromosome being a partial isochromosome, which lags at mitot...

journal_title：Chromosoma

authors： Brock RD,Pryor AJ

更新日期：1996-06-01 00:00:00

abstract：:Rice (Oryza sativa L.) centromeres are composed of 155-bp satellite repeats (CentO), centromere-specific retrotransposon (CRR), and a variety of other repeats. Previous studies have shown that CentO and CRR elements are both parts of the functional centromere/kinetochore complex. In this study, a naturally occurring k...

journal_title：Chromosoma

authors： Wang G,Li H,Cheng Z,Jin W

更新日期：2013-08-01 00:00:00

abstract：:In the parasitic wasp Nasonia vitripennis, certain males carry a B chromosome, called PSR (paternal sex ratio), which causes the compaction and subsequent loss of the paternal chromosomes in fertilized eggs. Because Nasonia are haplo-diploid, this leads to the production of all-male broods. Three families (PSR2, PSR18...

journal_title：Chromosoma

authors： Eickbush DG,Eickbush TH,Werren JH

更新日期：1992-08-01 00:00:00

abstract：:BrdU-substituted Chinese hamster chromosomes were treated with a hog Na2HPO4 solution and stained with Giemsa to produce sister chromatid differential staining (SCD). The process of SCD was examined with the Nomarski differential interference microscope and the scanning electron microscope. After the Na2HPO4 treatment...

journal_title：Chromosoma

authors： Takayama S,Utsumi KR,Sasaki Y

更新日期：1981-01-01 00:00:00

abstract：:Dioecious Silene latifolia evolved heteromorphic sex chromosomes within the last ten million years, making it a species of choice for studies of the early stages of sex chromosome evolution in plants. About a dozen genes have been isolated from its sex chromosomes and basic genetic and deletion maps exist for the X an...

journal_title：Chromosoma

authors： Howell EC,Armstrong SJ,Filatov DA

更新日期：2011-06-01 00:00:00

abstract：:Mammalian heterochromatin proteins 1 (HP1alpha, HP1beta, and HP1gamma) are nonhistone proteins that interact in vitro with a set of proteins that play a role in chromatin silencing, transcription, and chromatin remodeling. Using antibodies specific for each HP1 isoform, we showed that they segregate in distinct nuclea...

journal_title：Chromosoma

authors： Minc E,Allory Y,Worman HJ,Courvalin JC,Buendia B

更新日期：1999-08-01 00:00:00

abstract：:Alterations in the nuclear positioning of chromosomes and specific genes during differentiation and development have suggested strongly the existence of a relationship between non-random organization of the genome and its function. In this study, we have examined the genome organization in interphase nuclei during adi...

journal_title：Chromosoma

authors： Szczerbal I,Foster HA,Bridger JM

更新日期：2009-10-01 00:00:00

abstract：:Replication times for all important chromosome bands, of both types R and Q (277 structures) are analysed. The R-bands form a group of structures whose DNA replicates during the early S-phase, while the DNA situated in the Q-bands replicates during the late S-phase. There may not exist overlapping between replication ...

journal_title：Chromosoma

authors： Dutrillaux B,Couturier J,Richer CL,Viegas-Péquignot E

更新日期：1976-10-12 00:00:00

abstract：:Anaphase lagging of autosomes was observed in 6.1 +/- 5.4% of the primary spermatocytes in untreated larvae of the crane fly, Nephrotoma suturalis. Lagging was induced by exposure of larvae to 6 degrees C and during recovery at 22 degrees C from exposure to 0.2, 2, and 6 degrees C. The incidence of anaphase lag was ma...

journal_title：Chromosoma

authors： Janicke MA,LaFountain JR Jr

更新日期：1982-01-01 00:00:00

abstract：:The nuclear topography of pericentromeric DNA of chromosome 11 was analyzed in G0 (nonstimulated) and G1 [phytohemagglutinin (PHA) stimulated] human lymphocytes by confocal microscopy. In addition to the nuclear center, the centrosome was used as a second point of reference in the three-dimensional (3D) analysis. Peri...

journal_title：Chromosoma

authors： Hulspas R,Houtsmuller AB,Krijtenburg PJ,Bauman JG,Nanninga N

更新日期：1994-07-01 00:00:00

abstract：:The Bacillus subtilis phage phi 29 DNA polymerase, involved in protein-primed viral DNA replication, contains several amino acid consensus sequences common to other eukaryotic-type DNA polymerases. Using site-directed mutagenesis, we have studied the functional significance of a C-terminal conserved region, represente...

journal_title：Chromosoma

authors： Blasco MA,Esteban JA,Méndez J,Blanco L,Salas M

更新日期：1992-01-01 00:00:00

abstract：:Ribosomal DNA nontranscribed spacers in Drosophila virilis DNA have been examined in some detail by restriction site analysis of cloned segments of rDNA, nucleic acid hybridizations involving unfractionated rDNA, and base composition estimates. The overall G + C content of the spacer is 27--28%; this compares with 39%...

journal_title：Chromosoma

authors： Rae PM,Barnett T,Murtif VL

更新日期：1981-01-01 00:00:00

abstract：:Osteosarcoma (OS) is characterized by chromosomal instability and high copy number gene amplification. The breakage-fusion-bridge (BFB) cycle is a well-established mechanism of genome instability in tumors and in vitro models used to study the origins of complex chromosomal rearrangements and cancer genome amplificati...

journal_title：Chromosoma

authors： Selvarajah S,Yoshimoto M,Park PC,Maire G,Paderova J,Bayani J,Lim G,Al-Romaih K,Squire JA,Zielenska M

更新日期：2006-12-01 00:00:00

abstract：:In order to induce chromosomal rearrangements, males were exposed to x-rays and then mated to non-irradiated females. The number of each type of structural alteration was determined by examination of the polytene chromosomes of the F1 progeny. -- A comparison of the results with similar studies made on Drosophila reve...

journal_title：Chromosoma

authors： Israelewski N

更新日期：1975-12-10 00:00:00

abstract：:Macrosatellites are large polymorphic tandem arrays. The human subtelomeric macrosatellite D4Z4 has 11-150 repeats, each containing a copy of the intronless DUX4 gene. DUX4 is linked to facioscapulohumeral muscular dystrophy, but its normal function is unknown. The DUX gene family includes DUX4, the intronless Dux mac...

journal_title：Chromosoma

authors： Leidenroth A,Clapp J,Mitchell LM,Coneyworth D,Dearden FL,Iannuzzi L,Hewitt JE

更新日期：2012-10-01 00:00:00

abstract：:Human satellite DNAs I, II and IV were transcribed to yield radioactive complementary RNAs (cRNAs). These cRNAs were hybridised to metaphase chromosomes of man, chimpanzee (Pan troglodytes), gorilla (Gorilla gorilla) and orang utan (Pongo pygmaeus). The results of this in situ hybridisation were analysed quantitativel...

journal_title：Chromosoma

authors： Gosden JR,Mitchell AR,Seuanez HN,Gosden CM

更新日期：1977-09-27 00:00:00

abstract：:A cytological procedure for in vitro chromosome delineation has been studied using human and mouse (Mus musculus) chromosomes. This method, consisting of slide incubation in KMnO4 at 0--5 degrees C for 24 h followed by a short exposure to NaHSO3 (1--3 min) and Giemsa staining, induces extraction of chromatin from huma...

journal_title：Chromosoma

authors： Drets ME,Novello A

更新日期：1980-01-01 00:00:00

abstract：:The kinetochore is a complex multiprotein structure located at centromeres and required for the proper segregation of chromosomes during mitosis and meiosis. An important role in kinetochore assembly and function plays the centromeric histone H3 variant (CENH3). Cell cycle stage of CENH3 deposition to centromeres vari...

journal_title：Chromosoma

authors： Lermontova I,Rutten T,Schubert I

更新日期：2011-12-01 00:00:00

abstract：:The preferred positions for meiotic double-strand breakage were mapped on Saccharomyces cerevisiae chromosomes I and VI, and on a number of yeast artificial chromosomes carrying human DNA inserts. Each chromosome had strong and weak double-strand break (DSB) sites. On average one DSB-prone region was detected by pulse...

journal_title：Chromosoma

authors： Klein S,Zenvirth D,Dror V,Barton AB,Kaback DB,Simchen G

更新日期：1996-12-01 00:00:00

abstract：:Chromosome segregation in primary spermatocytes of the crane fly Nephrotoma suturalis was studied after exposure to Colcemid at doses that did not completely inhibit spindle formation. Colcemid was added either to the medium in which larvae were cultured or to Tricine buffer in which isolated testes were incubated. Pa...

journal_title：Chromosoma

authors： LaFountain JR Jr

更新日期：1985-01-01 00:00:00

abstract：:Fluorescent in situ hybridization with chromosome specific probes was used in conjunction with laser scanning confocal microscopy to assess the three-dimensional distribution of chromosomes in human T-lymphocyte nuclei. Cells in the G1-phase of the cell cycle exhibit a distinctly non-random chromosome organization:cen...

journal_title：Chromosoma

authors： Ferguson M,Ward DC

更新日期：1992-08-01 00:00:00

abstract：:Dioecious species accounted for 6% of all plant species, including a number of crops and economically important species, such as poplar. However, sex determination and sex chromosome evolution have been studied only in few dioecious species. In poplar, the sex-determining locus was mapped to chromosome 19. Interesting...

journal_title：Chromosoma

authors： Xin H,Zhang T,Han Y,Wu Y,Shi J,Xi M,Jiang J

更新日期：2018-09-01 00:00:00

abstract：:During early meiotic development the yeast Saccharomyces cerevisiae has a characteristic nuclear dense body (NDB). It is shown that the NDB can also be induced in vegetatively growing cells through the inhibition of thymidylate synthetase which causes depletion of the dTMP pool and arrests DNA synthesis. The observati...

journal_title：Chromosoma

authors： Moens PB,Barclay BJ,Little JG

更新日期：1981-01-01 00:00:00

abstract：:We describe a method for preparing nuclear spreads from cells of live, unfixed zebrafish embryos at the late-gastrula (approximately 8000 cell) stage of development. The method consists of a sequence of four steps: (1) a slow, gentle lysis, in low to moderate salt concentration, of cells and then nuclei, to release DN...

journal_title：Chromosoma

authors： Chan DW,Yager TD

更新日期：1998-03-01 00:00:00

abstract：:Short DNA regions, known to contain replication origins, were isolated from 2 M NaCl resistant nuclear structures of Physarum polycephalum after predigestion with DNase. Regions of 100 bp average length were cloned and sequenced. About 25% of the clones contained direct repeats of 12 to 16 bp and variable base sequenc...

journal_title：Chromosoma

authors： Opstelten RJ,Clement JM,Wanka F

更新日期：1989-12-01 00:00:00

abstract：:The sub-division of S-phase in Syrian hamsters, on the basis of Brd/U/Hoechst 33258/Giemsa banding, has allowed a quantitative comparison of the replication of individual chromosome bands within defined subphases of S. This analysis has shown that in hamsters, as has been reported in humans, there are distinct pattern...

journal_title：Chromosoma

authors： Cawood AH

更新日期：1981-01-01 00:00:00

abstract：:The mean DNA content of G2 macronuclei varies during the life cycle of the ciliate Tetrahymena thermophila. Early in the life cycle the mean is about 130 C; later it is about 94 C. In hybrids between strains A and B the decrease from 130 C to 94 C usually began after 60 fissions after conjugation. In B X B clones the ...

journal_title：Chromosoma

authors： Doerder FP,DeBault LE

更新日期：1978-10-20 00:00:00