Pairing of Homologous Chromosomes Inhibits Intrachromosomal RecombinationAnne M. Villeneuve
In some cases prochromosome reduction by pairing of presumed homologues occurs in tissues seen to have somatic pairing during mitosis7,9. The intimate association of homologous prochromosomes during interphase implies synapsis of euchromatic regions. Giant, interphase chromosomes of many Diptera are also...
An unusual pairing of homologous X chromosomes occurs during X inactivation. A new study in mouse embryonic stem cells shows that telomeres and the telomeric RNA PAR-TERRA are responsible for additional pairwise interactions that guide Xic-Xic pairing....
During meiosis, homologous chromosomes pair with each other and undergo... DQ Ding,T Haraguchi,Y Hiraoka - 《Chromosome Research》 被引量: 11发表: 2013年 Chromosomally-retained RNA mediates homologous pairing Meiosis-specific noncoding RNA mediates robust pairing of homologous chromosomes in meiosis....
Pairing of homologous chromosomes in meiosis is critical for their segregation to daughter cells. In most eukaryotes, clustering of telomeres precedes and facilitates chromosome pairing. In several species, centromeres also form pairwise associations, known as coupling, before the onset of pairing. We...
2.the lining up of the two homologous chromosomes or chromatids of each chromosome pair in meiosis or mitosis. Comparebase pairing. [1605–15] Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserve...
Homologous chromosomes pair throughout the euchromatic regions in spermatogonia and during the early phases of spermatocyte development. Extensive separation of homologs and sister chromatids along the chromosome arms occurs in mid-G2, several hours before the first meiotic division, and before the G...
During meiosis true homologues are correctly associated in wild-type wheat, but a degree of association of related chromosomes (homoeologues) occurs in a mutant (ph1b). We show that the centromeres are associated in non-homologous pairs in all floral tissues studied, both in wild-type wheat ...
Interestingly, the nature and frequency of translocated regions in cancer suggests that the regulation of interchromosomal contacts also has functional implications for the diseased states [4, 15, 16, 17••, 18, 19••]. What about homologous chromosomes? Chromosomes adopt a distinct ...
Partitioning of homologous chromosomes at the first meiotic division requires a coordinated set of activities unique to meiotic prophase I that culminates in the establishment of physical associations between pairs of homologous chromosomes. At the onset of meiosis, two important distinctions from ...