... , but amplified in one or both Carassius species; (3) those massively amplified in the B chromosomes of C. gibelio ; (4) those located in a single locus in C. gibelio , but amplified in many blocks in C. carassius ; and (5) those located in multiple pericentromeric loci in both Carassius species. Our data...

... in this subtribe. While the species of the genus Omophoita possess a relatively stable karyotype, a typical feature for Oedionychina, the present study identified inter- and intrapopulational variation in chromosome morphology, constitutive heterochromatin, and the presence and number of B chromosomes in O...

... be played by B chromosomes, which appear to be more frequent in X0 than in XY males. In conclusion, following Y chromosome loss, various strategies using nucleolar proteins have been developed to facilitate the migration of the unique X at meiotic anaphase I. Homaloplia ruricola (Scarabaeidae, Sericinae...

... and 76-79% interspecies similarity. Comparative fluorescence in situ hybridisation in the red fox and dog showed signals of the red fox satellite probe in canine and vulpine autosomal centromeres, on VVUY, B chromosomes, and in the distal parts of VVU9q and VVU10p which were shown to contain nucleolus...

...Diana P. Machado; Elder A. Miranda; Mariana C. Dessi; Camila P. Sabadini; Marco A. Del Lama Samples from 861 colonies of 12 Partamona species from 125 Brazilian localities were analysed for a SCAR marker specific to the B chromosomes of P. helleri . We identified the SCAR marker in 6 of the 12...

... to monocentric rye chromosomes. The SCE frequency of supernumerary B chromosomes, present additionally to the essential A chromosome complement of rye, does not differ from that of A chromosomes. Based on these results, models of the sister chromatid arrangement in mono- and holocentric plant chromosomes...

...Mercedes Ruiz-Estévez; Josefa Cabrero; Juan Pedro M. Camacho; María Dolores López-León B chromosomes in the grasshopper Eyprepocnemis plorans are considered to be mitotically stable, because all meiotic (primary spermatocytes and oocytes) or mitotic (embryos, ovarioles, and gastric caecum) cells...

...Mónica González-Sánchez; Victoria Heredia; Manuel Diez; María J. Puertas We have studied the trimethylation dynamics of lysines 4 and 27 of histone H3 in rye with and without B chromosomes (Bs) in root tip mitosis, meiosis, and pollen grain mitosis by immunostaining. In root meristems, H3K4me3...

..., instructions or products referred to in the content or advertisements. B chromosomes Dendropsophini Hylidae Interstitial telomeric sequence Karyotype diversity The treefrog family Hylidae is the most species-rich family of anurans, with 926 recognized species (Amphibian Species of the World...

...T.A. Voltolin; J.C. Pansonato Alves; J.A. Senhorini; F. Foresti; J.P.M. Camacho; F. Porto-Foresti To ascertain the origin of B chromosomes in 2 fish species of the genus Prochilodus , i.e. P. lineatus and P. nigricans , we microdissected them and generated B-specific DNA probes. These probes were...

..., no attention has been paid to the nuclear organization of B chromosomes (Bs). In this study we have examined nuclear positioning of Bs in 2 species from the Canidae family - the red fox and the Chinese raccoon dog. Using 2D and 3D fluorescence in situ hybridization and 2 gene-specific probes (C-KIT and PDGFRA...

... is in the Cerrado (savanna-like) biome [Silva et al., 2003]. The species has been recorded recently from a transitional zone between the Atlantic Forest and Cerrado in the state of Minas Gerais, southeastern Brazil [Paglia et al., 2005]. B chromosomes Cytochrome b Cytogenetics Fluorescent in situ...

... chromosomes are phenotypically indifferent from conspecifics, individuals carrying B chromosomes from recent introgression events in the laboratory show phenotypic changes. Former analyses showed that the expression of a pigment cell locus is associated with the presence of these B chromosomes. In addition...

...H. Golczyk Fluorescent in situ hybridization, C-banding/DAPI, and CMA 3 -fluorescence were performed to reveal the cytomolecular constitution of the standard (A) and supernumerary (B) chromosomes of an autotetraploid Tradescantia virginiana L. The analyses show that translocations and/or inversions...

...M.C. Acosta; E.A. Moscone B chromosomes are additional dispensable chromosomes that may be present in some individuals, populations, or species, which have probably arisen from the A chromosomes but follow their own evolutionary pathway. Supposedly, B chromosomes do not contain major genes except...

...M. Teruel; J. Cabrero; F. Perfectti; M.J. Acosta; A. Sánchez; J.P.M. Camacho The relative location of 2 repetitive DNAs, i.e. ribosomal (rDNA) and a tandemly repeated satellite DNA (satDNA), with respect to the centromere, suggested that B chromosomes in the grasshopper Eyprepocnemis plorans...