Results 1 to 10 of about 1,199,530 (311)

Ki-67 acts as a biological surfactant to disperse mitotic chromosomes

open access: yesNature, 2016
Eukaryotic genomes are partitioned into chromosomes that form compact and spatially well-separated mechanical bodies during mitosis. This enables chromosomes to move independently of each other for segregation of precisely one copy of the genome to each ...
Antonio Z Politi   +2 more
exaly   +2 more sources

Mammalian Y chromosomes retain widely expressed dosage-sensitive regulators

open access: yesNature, 2014
The human X and Y chromosomes evolved from an ordinary pair of autosomes, but millions of years ago genetic decay ravaged the Y chromosome, and only three per cent of its ancestral genes survived. We reconstructed the evolution of the Y chromosome across
Daniel W Bellott   +2 more
exaly   +2 more sources

DNA methylation profiling of human chromosomes 6, 20 and 22

open access: yesNature Genetics, 2006
DNA methylation is the most stable type of epigenetic modification modulating the transcriptional plasticity of mammalian genomes. Using bisulfite DNA sequencing, we report high-resolution methylation profiles of human chromosomes 6, 20 and 22, providing
Rene Cortese, Kevin L Howe, Stephan Beck
exaly   +2 more sources

NOMENCLATURE FOR CENTROMERIC POSITION ON CHROMOSOMES

open access: yes, 2009
N the inorphologic identification of chromosomes, the location of the I centromere is the most useful landmark, and one which is characterized by great constancy. It would seem that not much could be added to the definitions by E. B. WILSON (1928) of the
A. Levan, K. Fredga, A. Sandberg
semanticscholar   +1 more source

DNA sequence of both chromosomes of the cholera pathogen Vibrio cholerae

open access: yesNature, 2000
Here we determine the complete genomic sequence of the Gram negative, γ-Proteobacterium Vibrio cholerae El Tor N16961 to be 4,033,460 base pairs (bp). The genome consists of two circular chromosomes of 2,961,146 bp and 1,072,314 bp that together encode 3,
J. Heidelberg   +31 more
semanticscholar   +1 more source

How to identify sex chromosomes and their turnover

open access: yesMolecular Ecology, 2019
Although sex is a fundamental component of eukaryotic reproduction, the genetic systems that control sex determination are highly variable. In many organisms the presence of sex chromosomes is associated with female or male development.
Daniela H. Palmer   +3 more
semanticscholar   +1 more source

Genetic Diversity on the Sex Chromosomes

open access: yesGenome Biology and Evolution, 2018
Levels and patterns of genetic diversity can provide insights into a population’s history. In species with sex chromosomes, differences between genomic regions with unique inheritance patterns can be used to distinguish between different sets of possible
Melissa A. Wilson Sayres
semanticscholar   +1 more source

Hierarchical folding and reorganization of chromosomes are linked to transcriptional changes in cellular differentiation

open access: yesMolecular Systems Biology, 2015
Mammalian chromosomes fold into arrays of megabase‐sized topologically associating domains (TADs), which are arranged into compartments spanning multiple megabases of genomic DNA.
J. Fraser   +21 more
semanticscholar   +1 more source

Numerous Transitions of Sex Chromosomes in Diptera

open access: yesPLoS Biology, 2015
Many species groups, including mammals and many insects, determine sex using heteromorphic sex chromosomes. Diptera flies, which include the model Drosophila melanogaster, generally have XY sex chromosomes and a conserved karyotype consisting of six ...
Beatriz Viçoso, D. Bachtrog
semanticscholar   +1 more source

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