Chromosomal arrangement of heat shock locus 2-48B in Drosophila hydei.

abstract：:We determined the structure of the Schizosaccharomyces pombe centromere cen3 using direct genomic mapping and cosmid walking. The repetitive region of cen3 is approximately 110 kb, much longer than that of the previously determined cen1 and cen2 regions. The approximately 30 kb long left and approximately 60 kb right ...

journal_title：Chromosoma

authors： Murakami S,Matsumoto T,Niwa O,Yanagida M

更新日期：1991-12-01 00:00:00

abstract：:The fourth chromosome smallest in the genome of Drosophila melanogaster differs from other chromosomes in many ways. It has high repeat density in conditions of a large number of active genes. Gray bands represent a significant part of this polytene chromosome. Specific proteins including HP1a, POF, and dSETDB1 establ...

journal_title：Chromosoma

authors： Sidorenko DS,Sidorenko IA,Zykova TY,Goncharov FP,Larsson J,Zhimulev IF

更新日期：2019-06-01 00:00:00

abstract：:We have sequenced and analyzed 8.3 kb of sequence adjacent and distal to the human ribosomal DNA (rDNA); this distal sequence connects to the rDNA cluster just 4 kb upstream of the first promoter and is shared among the acrocentric chromosomes and, at least in part, it is also present in other primates. The sequence d...

journal_title：Chromosoma

authors： Gonzalez IL,Sylvester JE

更新日期：1997-06-01 00:00:00

abstract：:Minute elements detected in Megaselia scalaris (Phoridae, Diptera) lack chromosome arms but carry centromeres and possess kinetochore microtubules in mitosis as well as in meiosis. These centromere-like elements (CLEs) were present in two geographically independent strains of the fly. This indicates that their origin ...

journal_title：Chromosoma

authors： Wolf KW,Mertl HG,Traut W

更新日期：1991-11-01 00:00:00

abstract：:Lack of crossing-over in meiosis can trigger an apoptotic response at metaphase I by the spindle assembly checkpoint (SAC). In contrast to females, segregation of sex chromosomes in males poses a particular challenge as recombination and chiasma formation is restricted to the pseudoautosomal region, the small region o...

journal_title：Chromosoma

authors： Faisal I,Kauppi L

更新日期：2016-06-01 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：:Meiosis is a conserved cell division process that is used by sexually reproducing organisms to generate haploid gametes. Males and females produce different end products of meiosis: eggs (females) and sperm (males). In addition, these unique end products demonstrate sex-specific differences that occur throughout meios...

journal_title：Chromosoma

authors： Cahoon CK,Libuda DE

更新日期：2019-09-01 00:00:00

abstract：:The organization of DNA in the mitotic metaphase and polytene chromosomes of the fungus gnat, Sciara coprophila, has been studied using base-specific DNA ligands, including anti-nucleoside antibodies. The DNA of metaphase and polytene chromosomes reacts with AT-specific probes (quinacrine, DAPI, Hoechst 33258 and anti...

journal_title：Chromosoma

authors： Eastman EM,Goodman RM,Erlanger BF,Miller OJ

更新日期：1980-01-01 00:00:00

abstract：:The irradiation of metaphase spreads of human cells with ultraviolet (UV) light blocked the chromosome banding induced by Alu I, Mbo I, Dde I, Hinf I, Hae III, and Rsa I restriction endonucleases. At 13 J/m2 there was moderate inhibition of the nuclease action, which was detected as an increase in the stain intensity ...

journal_title：Chromosoma

authors： Bianchi NO,Bianchi MS,Cleaver JE

更新日期：1984-01-01 00:00:00

abstract：:The antigens in HeLa and Trichosia pubescens cells, recognized by sera from patients with rheumatic diseases containing anti-Ku antibodies, were compared by means of immunoprecipitation of labeled cell extracts. The autoantibodies present in the tested sera precipitate at least two polypeptides of approximately Mr = 7...

journal_title：Chromosoma

authors： Amabis JM,Amabis DC,Kaburaki J,Stollar BD

更新日期：1990-04-01 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：:Ki-67 protein has been widely used as a proliferation marker for human tumor cells for decades. In recent studies, multiple molecular functions of this large protein have become better understood. Ki-67 has roles in both interphase and mitotic cells, and its cellular distribution dramatically changes during cell cycle...

journal_title：Chromosoma

authors： Sun X,Kaufman PD

更新日期：2018-06-01 00:00:00

abstract：:The distribution of constitutive heterochromatin has been investigated in four chromosomal races of the grasshopper Caledia captiva (2n=23 male/24 female) by the C-banding technique. Each of the four races was found to have a distinctive banding pattern which is associated with the inter-racial differences in chromoso...

journal_title：Chromosoma

authors： Shaw DD,Webb GC,Wilkinson P

更新日期：1976-06-30 00:00:00

abstract：:We show that methylated lysine 9 of histone H3 (Me9H3) is a marker of heterochromatin in divergent animal species. It localises to both constitutive and facultative heterochromatin and replicates late in S-phase of the cell cycle. Significantly, Me9H3 is enriched in the inactive mammalian X chromosome (Xi) in female c...

journal_title：Chromosoma

authors： Cowell IG,Aucott R,Mahadevaiah SK,Burgoyne PS,Huskisson N,Bongiorni S,Prantera G,Fanti L,Pimpinelli S,Wu R,Gilbert DM,Shi W,Fundele R,Morrison H,Jeppesen P,Singh PB

更新日期：2002-03-01 00:00:00

abstract：:When A-banded human chromosomes mounted in water are transferred to an organic mounting medium, the chromosomes show uniform bright quinacrine fluorescence. This change is reversible. It is inferred that quinacrine is bound uniformly along the chromosomes, and that Q-banding is a consequence of a non-uniform distribut...

journal_title：Chromosoma

authors： Sumner AT

更新日期：1977-12-06 00:00:00

abstract：:The members of the serine-arginine (SR) family of proteins play multiple roles in posttranscriptional gene expression. Initially considered as essential splicing factors confined to the nucleus and regulating constitutive and alternative splicing, SR proteins are now known to shuttle between the nucleus and the cytopl...

journal_title：Chromosoma

authors： Singh OP,Visa N,Wieslander L,Daneholt B

更新日期：2006-12-01 00:00:00

abstract：:The ability to reproduce is a major trait of living organisms. This ability is carried out by specialized reproductive cells-gametes. In mammals, gametes develop through a unique developmental pathway. Extensive changes in the epigenome of gametes occur during embryonic development. With birth, gametes continue to mat...

journal_title：Chromosoma

authors： Wasserzug-Pash P,Klutstein M

更新日期：2019-09-01 00:00:00

abstract：:In budding yeast, mitotic DNA replication initiates at sequence-specific replication origins, the prototype for which is ARS1. Initiation serves as the primary control point for mitotic DNA replication, and is catalyzed by the Cdc7 protein kinase. In contrast, premeiotic DNA replication apparently does not require Cdc...

journal_title：Chromosoma

authors： Hollingsworth RE Jr,Sclafani RA

更新日期：1993-06-01 00:00:00

abstract：:This paper describes the effects of 5-azacytidine on the condensation state of rye (Secale cereale L.) chromatin introduced into the wheat genome (Triticum aestivum L. cv. Beaver). The wheat cultivar Beaver carries a translocation between the short arm of rye chromosome 1R (1RS) and the long arm of wheat chromosome 1B...

journal_title：Chromosoma

authors： Glyn MC,Egertová M,Gazdova B,Kovarik A,Bezdek M,Leitch AR

更新日期：1997-12-01 00:00:00

abstract：:The binding of methylene blue to DNA and chromatin treated in various ways was examined by equilibrium dialysis. The maximum r value (moles of bound dye/mole of nucleotide) was 1.0 for DNA, 0.6 for unfixed chromatin, and 0.83 for chromatin fixed in methanol-acetic acid. When fixed chromatin was treated with saline-cit...

journal_title：Chromosoma

authors： Comings DE,Avelino E

更新日期：1975-08-11 00:00:00

abstract：:Mutation of the telomeric repeat sequence has severe cellular consequences in a variety of systems. A Tetrahymena thermophila telomerase template mutant, ter1-43AA, displays an acute mitotic chromosome segregation defect. In the study described here we investigated the molecular basis for this lethality. Although clon...

journal_title：Chromosoma

authors： Petcherskaia M,McGuire JM,Pherson JM,Kirk KE

更新日期：2003-04-01 00:00:00

abstract：:The genomic DNA organisation patterns of four sauropsidian species, namely Python reticularis, Caiman crocodilus, Terrapene carolina triungius and Columba livia domestica were investigated by reassociation of short and long DNA fragments, by hyperchromicity measurements of reannealed fragments and by length estimation...

journal_title：Chromosoma

authors： Epplen JT,Diedrich U,Wagenmann M,Schmidtke J,Engel W

更新日期：1979-11-01 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：:The distinctive behaviors of chromosomes in mitosis and meiosis depend upon differences in kinetochore position. Kinetochore position is well established except for a critical transition between meiosis I and meiosis II. We examined kinetochore position during the transition and compared it with the position of kineto...

journal_title：Chromosoma

authors： Paliulis LV,Nicklas RB

更新日期：2005-03-01 00:00:00

abstract：:While many studies have provided significant insight into homolog pairing during meiosis, information on non-homologous pairing is much less abundant. In the present study, fluorescence in situ hybridization (FISH) was used to investigate non-homologous pairing in haploid rice during meiosis. At pachytene, non-homolog...

journal_title：Chromosoma

authors： Gong Z,Liu X,Tang D,Yu H,Yi C,Cheng Z,Gu M

更新日期：2011-02-01 00:00:00

abstract：:DNA topology in histone- and protamine-depleted nuclei (nucleoids) from somatic cells, sperm, and spermatogenic cells was studied to determine if the superhelical configuration of DNA looped domains is altered during spermatogenesis. The expansion and contraction of nucleoid DNA was measured with a fluorescence micros...

journal_title：Chromosoma

authors： Risley MS,Einheber S,Bumcrot DA

更新日期：1986-01-01 00:00:00

abstract：:This investigation was conducted to determine the relationship between Y chromosome loss and increased micronucleus formation with age. We also investigated the status of kinetochore proteins in the micronuclei. Umbilical cord blood samples were obtained from 18 newborn males, and peripheral blood was obtained from 35...

journal_title：Chromosoma

authors： Nath J,Tucker JD,Hando JC

更新日期：1995-07-01 00:00:00

abstract：:Engineered minichromosomes provide efficient platforms for stacking transgenes in crop plants. Methods for modifying these chromosomes in vivo are essential for the development of customizable systems for the removal of selection genes or other sequences and for the addition of new genes. Previous studies have demonst...

journal_title：Chromosoma

authors： Gaeta RT,Masonbrink RE,Zhao C,Sanyal A,Krishnaswamy L,Birchler JA

更新日期：2013-06-01 00:00:00

abstract：:Studies of gene expression in aneuploids have often made the assumption that measurements of RNA abundance from the varied chromosome will establish whether there is a dosage effect or compensation. Typical procedures of RNA isolation and use of equal amounts of RNA for quantitative estimates will not measure the tota...

journal_title：Chromosoma

authors： Birchler JA

更新日期：2014-10-01 00:00:00

abstract：:Internally consistent G-, Q- and R-banded karyotypes and idiograms for sheep chromosomes at the 422-band level of resolution are presented. These were derived by sequential Q- to G-staining, and sequential Q- to R-staining of prometaphase spreads prepared from sheep with normal and Robertsonian chromosomes. The fused ...

journal_title：Chromosoma

authors： Ansari HA,Maher DW,Pearce PD,Broad TE

更新日期：1996-07-01 00:00:00