Results 11 to 20 of about 38,555 (288)

Differing requirements for RAD51 and DMC1 in meiotic pairing of centromeres and chromosome arms in Arabidopsis thaliana. [PDF]

open access: yesPLoS Genetics, 2012
During meiosis homologous chromosomes pair, recombine, and synapse, thus ensuring accurate chromosome segregation and the halving of ploidy necessary for gametogenesis.
Olivier Da Ines   +4 more
doaj   +1 more source

CHROMOSOME PAIRING IN MAIZE [PDF]

open access: yesGenetics, 1972
ABSTRACT This report summarizes our observations at pachytene on opposite-arms intercrosses between stocks of interchanges that involve chromosomes 1 and 5 in maize.—Pairing does not begin at the centromeres in these intercrosses.—We propose a model which assumes different probability values along each chromosome arm for the initial or ...
Ronald L. Phillips   +4 more
openaire   +3 more sources

MATHEMATICS OF CHROMOSOME PAIRING [PDF]

open access: yesGenetics, 1980
ABSTRACT Analysis of frequencies of chromosome configurations in wheat-related species hybrids is extended to include cases involving homoeologous groups of size six. Further, the expected frequencies of the various configurations emanating from homologous and homoeologous pairing events have been determined for groups consisting of two ...
Gordon Kimber   +2 more
openaire   +3 more sources

Chromosome painting reveals asynaptic full alignment of homologs and HIM-8-dependent remodeling of X chromosome territories during Caenorhabditis elegans meiosis. [PDF]

open access: yesPLoS Genetics, 2011
During early meiotic prophase, a nucleus-wide reorganization leads to sorting of chromosomes into homologous pairs and to establishing associations between homologous chromosomes along their entire lengths.
Kentaro Nabeshima   +2 more
doaj   +1 more source

The courtship choreography of homologous chromosomes: timing and mechanisms of DSB-independent pairing

open access: yesFrontiers in Cell and Developmental Biology, 2023
Meiosis involves deep changes in the spatial organisation and interactions of chromosomes enabling the two primary functions of this process: increasing genetic diversity and reducing ploidy level.
Mireia Solé   +4 more
doaj   +1 more source

Multiple opposing constraints govern chromosome interactions during meiosis. [PDF]

open access: yesPLoS Genetics, 2013
Homolog pairing and crossing over during meiosis I prophase is required for accurate chromosome segregation to form euploid gametes. The repair of Spo11-induced double-strand breaks (DSB) using a homologous chromosome template is a major driver of ...
Doris Y Lui   +2 more
doaj   +1 more source

Somatic pairing of chromosome 19 in renal oncocytoma is associated with deregulated EGLN2-mediated [corrected] oxygen-sensing response. [PDF]

open access: yesPLoS Genetics, 2008
Chromosomal abnormalities, such as structural and numerical abnormalities, are a common occurrence in cancer. The close association of homologous chromosomes during interphase, a phenomenon termed somatic chromosome pairing, has been observed in ...
Julie M Koeman   +19 more
doaj   +1 more source

Characterization of meiotic chromosome behavior in the autopolyploid Saccharum spontaneum reveals preferential chromosome pairing without distinct DNA sequence variation

open access: yesCrop Journal, 2023
Autopolyploidy and allopolyploidy may represent an evolutionary advantage and are more common in plants than assumed. However, less attention has been paid to autopolyploidy than to allopolyploidy, and its evolutionary consequences are largely unclear ...
Xin Zhang   +6 more
doaj   +1 more source

Chromosome movements promoted by the mitochondrial protein SPD-3 are required for homology search during Caenorhabditis elegans meiosis.

open access: yesPLoS Genetics, 2013
Pairing of homologous chromosomes during early meiosis is essential to prevent the formation of aneuploid gametes. Chromosome pairing includes a step of homology search followed by the stabilization of homolog interactions by the synaptonemal complex (SC)
Leticia Labrador   +8 more
doaj   +1 more source

How to pre-pair chromosomes for meiosis [PDF]

open access: yesCell Cycle, 2016
Meiosis is a special type of cell division specific to germ cells, whereby diploid germ cells produce haploid gametes for sexual reproduction.
Nicolas Christophorou   +5 more
openaire   +3 more sources

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