Results 111 to 120 of about 45,751 (265)

Kinetochore assembly and heterochromatin formation occur autonomously in Schizosaccharomyces pombe [PDF]

, 2014
Kinetochores in multicellular eukaryotes are usually associated with heterochromatin. Whether this heterochromatin simply promotes the cohesion necessary for accurate chromosome segregation at cell division or whether it also has a role in kinetochore ...
Blythe, Martin, Brown, William R.A., Lee, Nicholas C.O., Liti, Gianni, Loose, Matthew W., Thomas, Geraint, Warringer, Jonas   +6 more
core   +2 more sources

Human cell recovery after microwave irradiation [PDF]

arXiv, 2009
Cells of human buccal epithelium of 6 male donors were exposed to microwave radiation (frequency f=36,64 GHz, power density E = 10, 100, and 400 mcW/cm^2). Exposure time in all experiments was 10 seconds. Heterochromatin was stained by 2% orcein in 45 % acetic acid. The stainability of cells with trypan blue (0,5 %) and indigocarmine (5 mM) after 5 min
arxiv  

Genetic Architecture of Immune Cell DNA Methylation in the Rhesus Macaque

Molecular Ecology, EarlyView.
ABSTRACT Genetic variation that impacts gene regulation, rather than protein function, can have strong effects on trait variation both within and between species. Epigenetic mechanisms, such as DNA methylation, are often an important intermediate link between genotype and phenotype, yet genetic effects on DNA methylation remain understudied in natural ...
Christina E. Costa, Marina M. Watowich, Elisabeth A. Goldman, Kirstin N. Sterner, Josue E. Negron‐Del Valle, Daniel Phillips, Cayo Biobank Research Unit, Michael L. Platt, Michael J. Montague, Lauren J. N. Brent, James P. Higham, Noah Snyder‐Mackler, Amanda J. Lea   +12 more
wiley   +1 more source

Ectopic application of the repressive histone modification H3K9me2 establishes post-zygotic reproductive isolation in Arabidopsis thaliana [PDF]

, 2017
Hybrid seed lethality as a consequence of interspecies or interploidy hybridizations is a major mechanism of reproductive isolation in plants. This mechanism is manifested in the endosperm, a dosage-sensitive tissue supporting embryo growth.
De Jaeger, Geert, Gevaert, Kris, Jiang, Hua, Kohler, Claudia, Moreno-Romero, Jordi, Santos-Gonzalez, Juan, Van De Slijke, Eveline   +6 more
core   +1 more source

JMJ720 regulates flowering time in rice via H3K9 demethylation of Hd1

Plant Biotechnology Journal, EarlyView.
Summary Heading date is a crucial agronomic trait that determines the adaptability of rice to specific planting regions and seasons. Although numerous heading date genes have been well characterized in rice, epigenetic regulation of flowering time remains limited.
Xiufeng Li, Jiaping Zhu, Xiaojie Tian, Yingxiang Liu, Jiaming Wei, Zhipeng Hong, Xin Jin, Chunxiao Chen, Zhenyu Wang, Jiaqi Tang, Xianwei Song, Qingyun Bu   +11 more
wiley   +1 more source

Satellite DNA sites in four species of the genus Astyanax (Teleostei, Characiformes)

Genetics and Molecular Biology, 2007
Cytogenetic data about satellite DNA distribution in four Astyanax species (Characidae) from the Paraitinga river, Paraíba do Sul river basin, Brazil, are presented. In order to characterize the constitutive heterochromatin, C-banding, chromomycin A3 and
Karine Frehner Kavalco, Rubens Pazza, Luiz Antonio Carlos Bertollo, Orlando Moreira-Filho   +3 more
doaj   +1 more source

Constitutive Heterochromatin Differentiation and Evolutionary Divergence of Karyotype in Oriental Anopheles (Cellia) [PDF]

, 1988
Analysis of the mitotic karyotype of two clusters of closely related species of oriental Anopheles, the A . balabacensis and A. maculatus complexes, has revealed interspecific differences in the amount and distribution of constitutive heterochromatin,
Baimai, Visut
core  

Factors determining chromosomal localization of transposable elements in plants

Plant Biology, EarlyView.
We review transposon chromosomal niches, and the functional consequences of their specific chromosomal localization in plants. Abstract Transposable elements (TEs) constitute a significant part of plant genomes and shape their genomic landscape. While some TEs are ubiquitously dispersed, other elements specifically occupy discrete genomic loci.
E. Kejnovsky, P. Jedlicka, M. Lexa, Z. Kubat   +3 more
wiley   +1 more source

High-resolution mapping of heterochromatin redistribution in a Drosophila position-effect variegation model

Epigenetics & Chromatin, 2009
Background Position-effect variegation (PEV) is the stochastic transcriptional silencing of a gene positioned adjacent to heterochromatin. white-mottled X-chromosomal inversions in Drosophila are classic PEV models that show variegation of the eye color ...
Vogel Maartje J, Pagie Ludo, Talhout Wendy, Nieuwland Marja, Kerkhoven Ron M, van Steensel Bas   +5 more
doaj   +1 more source

Rapid interphase and metaphase assessment of specific chromosomal changes in neuroectodermal tumor cells by in situ hybridization with chemically modified DNA probes [PDF]

, 1988
Repeated DNAs from the constitutive heterochromatin of human chromosomes 1 and 18 were used as probes in nonradioactive in situ hybridization experiments to define specific numerical and structural chromosome aberrations in three human glioma cell lines ...
A.H.N. Hopman, Atkin, Bigner, Brigati, Burns, Burns, Carine, Cavenee, Comings, Cooke, Cooke, Cremer, D. Tesin, Dale, Devilee, Devilee, Dudin, Durnam, Gosden, Hadlaczky, Hall, Henn, Higgins, Hopman, Hopman, Hopman, Hopman, Hopman, Joseph, Julien, Kinzler, Kohl, L. Manuelidis, Landegent, Landegent, Langer-Safer, Leary, Lund Jorgensen, Maniatis, Manuelidis, Manuelidis, Manuelidis, Manuelidis, Manuelidis, Manuelidis, Manuelidis, Manuelidis, Manuelidis, Manuelidis, McDermid, Müller, Müncke, Pinkel, Pinkel, Rappold, Schardin, Schwab, Shapiro, Siegel, T. Cremer, Therman, Trask, Willard, Wu, Yang   +64 more
core   +1 more source