Results 11 to 20 of about 1,025,592 (331)

Chromosome architecture and homologous recombination in meiosis

Frontiers in Cell and Developmental Biology, 2023
Meiocytes organize higher-order chromosome structures comprising arrays of chromatin loops organized at their bases by linear axes. As meiotic prophase progresses, the axes of homologous chromosomes align and synapse along their lengths to form ladder ...
Masaru Ito, Akira Shinohara
doaj   +3 more sources

Meiotic telomeres: a matchmaker for homologous chromosomes [PDF]

Genes to Cells, 1998
Telomeres, with their special structures and special schemes of synthesis, are essential for protecting the ends of eukaryotic linear chromosomes during cell proliferation. In addition to this basic function, the meiosis‐specific functions of telomeres have long been inferred from the cytological observations of characteristic chromosome configurations
Yasushi Hiraoka
openalex   +4 more sources

HOMOLOGOUS AND SIMILAR CHROMOSOMES IN DIPLOID AND TRIPLOID HYACINTHS [PDF]

Genetics, 1925
John Belling
openalex   +4 more sources

Homologous chromosome pairing starts at the ends. [PDF]

Plant Physiol
De Jaeger-Braet J.
europepmc   +3 more sources

THE HOMOLOGIES OF THE CHROMOSOME ELEMENTS IN THE GENUS DROSOPHILA [PDF]

Genetics, 1941
Uploaded by Plazi for TaxoDros. We do not have abstracts.
E. Novitski, A. H. Sturtevant
openaire   +6 more sources

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

PLoS 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, Kiyomi Abe, Chantal Goubely, Maria Eugenia Gallego, Charles I White   +4 more
doaj   +1 more source

Formation of the synaptonemal complex in a gynogenetic allodiploid hybrid fish

Frontiers in Genetics, 2023
Introduction: The correct pairing and separation of homologous chromosomes during meiosis is crucial to ensure both genetic stability and genetic diversity within species. In allodiploid organisms, synapsis often fails, leading to sterility.
Jing Wang, Wen Wang, Jihong Li, Yirui Zhang, Kaikun Luo, Linmei Han, Caixia Xiang, Mingli Chai, Ziye Luo, Rurong Zhao, Shaojun Liu   +10 more
doaj   +1 more source

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

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, Zhuang Meng, Jinlei Han, Haris Khurshid, Ayman Esh, Robert Hasterok, Kai Wang   +6 more
doaj   +1 more source

Control of homologous chromosome division in the mammalian oocyte. [PDF]

Molecular Human Reproduction, 2009
Homologous chromosomes are segregated during the first meiotic division (meiosis I). Unfortunately, human oocytes are particularly susceptible to mis-segregation errors, so generating aneuploid, often non-viable, embryos. Here we review the cell biology of meiosis I and how homolog disjunction is regulated for mammalian oocytes.
J. Holt, K. Jones
semanticscholar   +4 more sources

Dispersive forces and resisting spot welds by alternative homolog conjunction govern chromosome shape in Drosophila spermatocytes during prophase I.

PLoS Genetics, 2022
The bivalent chromosomes that are generated during prophase of meiosis I comprise a pair of homologous chromosomes. Homolog pairing during prophase I must include mechanisms that avoid or eliminate entanglements between non-homologous chromosomes.
Luisa Vernizzi, Christian F Lehner
doaj   +1 more source