Results 21 to 30 of about 142,425 (303)

Global features of sequences of bacterial chromosomes, plasmids and phages revealed by analysis of oligonucleotide usage patterns

open access: yesBMC Bioinformatics, 2004
Background Oligonucleotide frequencies were shown to be conserved signatures for bacterial genomes, however, the underlying constraints have yet not been resolved in detail.
Tümmler Burkhard, Reva Oleg N
doaj   +1 more source

Remnant of Unrelated Amniote Sex Chromosomal Linkage Sharing on the Same Chromosome in House Gecko Lizards, Providing a Better Understanding of the Ancestral Super-Sex Chromosome

open access: yesCells, 2021
Comparative chromosome maps investigating sex chromosomal linkage groups in amniotes and microsatellite repeat motifs of a male house gecko lizard (Hemidactylus frenatus, HFR) and a flat-tailed house gecko lizard (H.
Worapong Singchat   +7 more
doaj   +1 more source

BAC-FISH assays delineate complex chromosomal rearrangements in a case of post-Chernobyl childhood thyroid cancer [PDF]

open access: yes, 2009
Structural chromosome aberrations are known hallmarks of many solid tumors. In the papillary form of thyroid cancer (PTC), for example, activation of the receptor tyrosine kinase (RTK) genes, RET and neurotrophic tyrosine kinase receptor type I (NTRK1)
Baumgartner, Adolf   +6 more
core   +2 more sources

Quantitative analysis of replication-related mutation and selection pressures in bacterial chromosomes and plasmids using generalised GC skew index

open access: yesBMC Genomics, 2009
Background Due to their bi-directional replication machinery starting from a single finite origin, bacterial genomes show characteristic nucleotide compositional bias between the two replichores, which can be visualised through GC skew or (C-G)/(C+G ...
Suzuki Haruo   +2 more
doaj   +1 more source

The coevolution of toxin and antitoxin genes drives the dynamics of bacterial addiction complexes and intragenomic conflict [PDF]

open access: yes, 2012
Bacterial genomes commonly contain ‘addiction’ gene complexes that code for both a toxin and a corresponding antitoxin. As long as both genes are expressed, cells carrying the complex can remain healthy.
Brown, Sam P.   +3 more
core   +1 more source

The Potential Of High-Resolution BAC-FISH In Banana Breeding [PDF]

open access: yes, 2009
The genetic complexity in the genus Musa has been subject of study in many breeding programs worldwide. Parthenocarpy, female sterility, polyploidy in different cultivars and limited amount of genetic and genomic information make the production of new ...
Capdeville, G., De   +7 more
core   +2 more sources

Distribution of mononucleotide repeats in bacterial chromosomes: A/T-tracts dominate on G/C-tracts [PDF]

open access: yesКомпьютерные исследования и моделирование, 2010
This study analyzes the abundance of mononucleotide tracts of different length in 342 eubacterial and 69 archaeal chromosomes. Despite the fact that the amount of analyzed repeats depends on nucleotide content, the predominance of poly(dA)n- and poly(dT ...
Sergey Sergeevich Kisselev   +3 more
doaj   +1 more source

Organization of the bacterial chromosome [PDF]

open access: yesMicrobiological Reviews, 1990
Recent progress in studies on the bacterial chromosome is summarized. Although the greatest amount of information comes from studies on Escherichia coli, reports on studies of many other bacteria are also included. A compilation of the sizes of chromosomal DNAs as determined by pulsed-field electrophoresis is given, as well as a discussion of factors ...
S, Krawiec, M, Riley
openaire   +2 more sources

A Powerful New Quantitative Genetics Platform, Combining Caenorhabditis elegans High-Throughput Fitness Assays with a Large Collection of Recombinant Strains. [PDF]

open access: yes, 2015
The genetic variants underlying complex traits are often elusive even in powerful model organisms such as Caenorhabditis elegans with controlled genetic backgrounds and environmental conditions.
Andersen, Erik C   +7 more
core   +2 more sources

Bacterial Chromosome Dynamics

open access: yesScience, 2003
Bacterial chromosomes are highly compacted structures and share many properties with their eukaryote counterparts, despite not being organized into chromatin or being contained within a cell nucleus. Proteins conserved across all branches of life act in chromosome organization, and common mechanisms maintain genome integrity and ensure faithful ...
openaire   +2 more sources

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