Results 301 to 310 of about 7,960,154 (346)

Y chromosome palindromes and gene conversion

Human Genetics, 2017
The presence of large and near-identical inverted repeat sequences (called palindromes) is a common feature of the constitutively haploid sex chromosomes of different species. Despite the fact palindromes originated in a non-recombining context, they have evolved a strong recombinational activity in the form of abundant arm-to-arm gene conversion ...
B. Trombetta, F. Cruciani
semanticscholar   +4 more sources

Ploidy and gene conversion in Archaea.

Biochemical Society Transactions, 2011
The genome copy numbers of seven crenarchaeal species of four genera have been reported. All of them are monoploid and thus this seems to be a characteristic feature of Crenarchaeota.
J. Soppa
semanticscholar   +4 more sources

Intrachromosomal gene conversion in yeast

Nature, 1981
We have shown that the yeast Saccharomyces cerevisiae has a mechanism by which information from one gene can be transferred non-reciprocally to a repeated copy of the gene on the same chromosome. This intrachromosomal gene conversion may be important in maintaining sequence homogeneity within families of repeated eukaryotic genes.
Hannah L. Klein, Thomas D. Petes
openaire   +3 more sources

Priority in gene-conversion

Experientia, 1958
Die 1932 vonWinkler aufgestellte Hypothese der Genkonversion wurde bereits 1937 vonRenner und 1949 vonLindegren undMundkur bestatigt. Seit 1955 haben auch eine Reihe weiterer Autoren uber Befunde berichtet, welche operationsmassig nicht von dem vonWinkler beschriebenen Phanomen der Genkonversion zu unterscheiden sind, doch haben sie es ohne Ausnahme ...
openaire   +3 more sources

Immunoglobulin Gene Diversification by Gene Conversion

1993
Publisher Summary This chapter discusses recent advances in the study of gene conversion, primarily in the chicken, and on current models for the molecular mechanism of this form of somatic gene conversion. Most of the higher vertebrates, including teleost fish, the amphibian Xenopus, the reptile Caiman, and most of the mammalian species studied ...
Craig B. Thompson, Wayne T. McCormack, Larry W. Tjoelker   +2 more
openaire   +3 more sources

Conversion of ras Genes to Cancer Genes

1987
The cellular precursor of Harvey and Balb sarcoma virus, termed proto-ras, from certain tumors registers most frequently as an apparent cancer gene in the gene transfer assay with NIH 3T3 cells [1–4]. The viral ras gene is a dominant transforming gene that elicits all features of oncogenic transformation in a single step upon transfer into established ...
K. Cichutek, Peter H. Duesberg
openaire   +3 more sources

A Coalescence Approach to Gene Conversion

Theoretical Population Biology, 2000
In this paper we develop a coalescent model with intralocus gene conversion. Such models are of increasing importance in the analysis of intralocus variability and linkage disequilibrium. We derive the distribution of the waiting time until a gene conversion event occurs in a sample in terms of the distribution of the length of the transferred segment,
openaire   +5 more sources

Loss of two introns from the Magnolia tripetala mitochondrial cox2 gene implicates horizontal gene transfer and gene conversion as a novel mechanism of intron loss.

Molecular biology and evolution, 2012
Intron loss is often thought to occur through retroprocessing, which is the reverse transcription and genomic integration of a spliced transcript. In plant mitochondria, several unambiguous examples of retroprocessing are supported by the parallel loss ...
N. J. Hepburn, Derek W Schmidt, Jeffrey P. Mower   +2 more
semanticscholar   +1 more source

Gene conversion and the coalescent process

2021
This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
openaire   +2 more sources

Genetical Interference and Gene Conversion [PDF]

, 1974
Gene conversion is a phenomenon associated with a high frequency of crossing-over of flanking markers (Mitchell, 1955; Case and Giles, 1964; Fogel and Hurst, 1967). Within a sample of 907 conversion events at four loci in the yeast Saccharomyces cerevisiae, 445 were associated with exchange of bracketing markers (Hurst et al., 1972).
Robert K. Mortimer, Seymour Fogel
openaire   +1 more source