B chromosomes
Genes on B chromosomes of vertebrates
... of B-specific sequences were in good agreement between the two methods. B-blocks were distributed among most linkage groups of ...on B chromosomes in cichlids from Lake Victoria (Lithochromis ...
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Chromosome Nondisjunction and Instabilities in Tapetal Cells Are Affected by B Chromosomes in Maize
... to B chromosomes (B’s), knobbed chromo- somes, and the chromosome 6 (NOR) of ...knobbed chromosomes and knobbed chromosomes form more than do chromosomes without ...low B ...
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B chromosomes are associated with redistribution of genetic recombination towards lower recombination chromosomal regions in perennial ryegrass
... B chromosomes as a potential tool for manipulating recom- bination in plant breeding would have some appeal as they would be relatively easy to introduce into and remove (if required) from a population by ...
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Transcription of a protein-coding gene on B chromosomes of the Siberian roe deer (Capreolus pygargus)
... of B chromosomes as described previously ...metaphase chromosomes was made according to standard procedures that included a 45-minute hypotonic treatment in ...of B chromosomes was ...
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Application of Texture Measures to Study Effect of B Chromosomes on the 3D Architecture of Plant Chromatin
... Crepis capillaris (L.) plants with different number of B chromosomes (2n = 6 + Bs) were use in this study. To have suitable amount of root meristems of each genotype a culture of hairy roots was ...
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Small supernumerary marker chromosomes (sSMC) in humans; are there B chromosomes hidden among them
... It is well established that about two thirds of reported sSMC are derived from acrocentric chromosomes. Accord- ing to [10] almost 70% of those acrocentric derived sSMC are inverted duplicated, dicentric ...
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Discovery of Supernumerary B Chromosomes in Drosophila melanogaster
... when B chromosomes are present in lower numbers (Beukeboom ...organisms, B chromosomes have been reported to cause sterility, and even lethality, to their host, although this is more common ...
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Chromosome Instabilities and Programmed Cell Death in Tapetal Cells of Maize With B Chromosomes and Effects on Pollen Viability
... a common origin from the archesporial cells (Echlin 1973; Canales et al. 2002) and remain in close contact during their development. Yang et al. (1999), analyzing the SPL mutation in Arabidopsis, suggested that the ...
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THE INTERACTION OF KNOBS AND B CHROMOSOMES OF MAIZE IN DETERMINING THE LEVEL OF RECOMBINATION
... Modification of the B chromosome enhancement in dif- ferent knob compounds was observed only in the megasporocytes.-Different frequencies of recombination are found in plants [r] ...
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DNA FROM MAIZE WITH AND WITHOUT B CHROMOSOMES: A COMPARATIVE STUDY
... The present investigation was undertaken in the hope that a detailed comparison of DNA bouyant density distribution, DNA renaturation kinetics and DNA/DNA duplexes formed between 5B[r] ...
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Control of Meiotic Drive of B Chromosomes in the Mealybug, Pseudococcus affinis (obscurus)
... T h e conclusion that some of the E230 males carried a B, but failed to transmit it to any of their analyzed daughters, is based on the cytology of sisters of the E230 males o[r] ...
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Structural and Functional Analysis of Transposable Elements Focusing on B Chromosomes of the Cichlid Fish Astatotilapia latifasciata
... latifasciata , we performed a comparative analysis using RepeatExplorer and coverage ratios.. The 254.[r] ...
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Miscellaneous note
... All specimens studied confirm a basic chromosome number of seven for this tribe. Chromosome configura tions were, in most instances, restricted to bivalents (Figures 4 a - d ) . The exceptions were Festuca scabra with a ...
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Chromosomal mapping of rDNAs and H3 histone sequences in the grasshopper rhammatocerus brasiliensis (acrididae, gomphocerinae): extensive chromosomal dispersion and co-localization of 5S rDNA/H3 histone clusters in the A complement and B chromosome
... and B chromo- ...about B chromosomes content in animal ...of B origin, depending on the mechanisms of evolution for the cho- sen sequence in the genomes to be ...of B origin, due their ...
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Directed synthesis of a segmental chromosomal transposition: an approach to the study of chromosomes lethal to the gametophyte generation of maize.
... T h e procedure to generate transpositions, the translocations between normal A and supernumerary B chromosomes that generate deficiencies in the male gametes, the r-X1[r] ...
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Germ line polysomy in Atractomorpha similis
... 168 individuals of this species contain a large number of heterochromatic segments on their standard chromosomes, while others carry a large amount of heterochromatin as B chromosomes, a[r] ...
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Wapl antagonizes cohesin binding and promotes Polycomb group silencing in Drosophila
... polytene chromosomes was carried out using standard procedures (Eissenberg, 2006) with the following primary antibody dilutions: affinity-purified -Wapl-L and -Wapl-SL (1:20); -Rad21 (1:100) and -HA ...
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Karyotype features of trematode Himasthla elongata
... the chromosomes, treated with pressure had a much better bands resolution, therefore we considered to call them “high-resolution” ...metaphase chromosomes’ DAPI-banding pattern is shown in ...
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Exposure to Oil during Meiosis Results in Alterations in Meiotic Chromosomes that are Similar to Age Related Changes in the Nematode Caenorhabditis elegans
... meiotic chromosomes at the stage of pachytene, revealed significant changes in the chromatin, the nucleus, and its associated components (Table ...the chromosomes due to condensation; 3) Decrease in volume ...
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Methotrexate resistance in relation to treatment outcome in childhood acute lymphoblastic leukemia
... Precursor B cell ALL carrying either TEL-AML1 or E2A-PBX1 gene fusions was previously shown to accumulate decreased levels of MTX polygluta- mates as compared to precursor B cell ALL which are devoid of ...
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