Results 31 to 40 of about 2,401,068 (320)
Crop 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
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PLoS 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
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Partial preferential chromosome pairing is genotype dependent in tetraploid rose
The Plant Journal, 2017 It has long been recognised that polyploid species do not always neatly fall into the categories of auto- or allopolyploid, leading to the term 'segmental allopolyploid' to describe everything in between.
P. Bourke +13 more
semanticscholar +1 more source
Competition of Parental Genomes in Plant Hybrids
Frontiers in Plant Science, 2020 Interspecific hybridization represents one of the main mechanisms of plant speciation. Merging of two genomes from different subspecies, species, or even genera is frequently accompanied by whole-genome duplication (WGD).
Marek Glombik +4 more
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Mechanics and dynamics of X-chromosome pairing at X inactivation. [PDF]
PLoS Computational Biology, 2008 At the onset of X-chromosome inactivation, the vital process whereby female mammalian cells equalize X products with respect to males, the X chromosomes are colocalized along their Xic (X-inactivation center) regions.
Antonio Scialdone, Mario Nicodemi
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Nature Communications, 2019 Pairing of homologous chromosomes in meiosis is essential for sexual reproduction. We have previously demonstrated that the fission yeast sme2 RNA, a meiosis-specific long noncoding RNA (lncRNA), accumulates at the sme2 chromosomal loci and mediates ...
Da‐Qiao Ding +8 more
semanticscholar +1 more source
Chromosomally-retained RNA mediates homologous pairing [PDF]
Nucleus, 2012 Pairing and recombination of homologous chromosomes are essential for ensuring correct segregation of chromosomes in meiosis. In S. pombe, chromosomes are first bundled at the telomeres (forming a telomere bouquet) and then aligned by oscillatory movement of the elongated "horsetail" nucleus.
Ding, Da-Qiao +2 more
openaire +2 more sources
PLoS Genetics, 2019 The first meiotic division reduces genome ploidy. This requires pairing of homologous chromosomes into bivalents that can be bi-oriented within the spindle during prometaphase I.
Michael Shoujie Sun +4 more
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Determinants of Chromosome Architecture: Insulator Pairing in cis and in trans
PLoS Genetics, 2016 The chromosomes of multicellular animals are organized into a series of topologically independent looped domains. This domain organization is critical for the proper utilization and propagation of the genetic information encoded by the chromosome.
M. Fujioka +3 more
semanticscholar +1 more source
Cryptic homoeology analysis in species and hybrids of genus Zea
Biologia Plantarum, 2013 Cryptic intergenomic pairing of genus Zea was induced by the use of a diluted colchicine solution in order to elucidate the phylogenetic relations and differentiation of the homoeologous genomes. Results indicate that in species and hybrids with 2n = 20,
M. C. del Molina +4 more
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