Results 31 to 40 of about 297,547 (335)

Condensin II resolves chromosomal associations to enable anaphase I segregation in Drosophila male meiosis. [PDF]

PLoS Genetics, 2008
Several meiotic processes ensure faithful chromosome segregation to create haploid gametes. Errors to any one of these processes can lead to zygotic aneuploidy with the potential for developmental abnormalities.
Tom A Hartl, Sarah J Sweeney, Peter J Knepler, Giovanni Bosco   +3 more
doaj   +1 more source

The Origin of a New Sex Chromosome by Introgression between Two Stickleback Fishes. [PDF]

, 2019
Introgression is increasingly recognized as a source of genetic diversity that fuels adaptation. Its role in the evolution of sex chromosomes, however, is not well known. Here, we confirm the hypothesis that the Y chromosome in the ninespine stickleback,
Abbott, Alexander, Anders, Bachtrog, Bachtrog, Bachtrog, Bronson, Browning, Carling, Carneiro, Charlesworth, Charlesworth, Choi, Cook, Corcoran, Coyne, Coyne, Danecek, DePristo, Edwards, Glazer, Green, Groves Dixon, Hagen, Irwin, Ishikawa, JanouŠek, Jay, Jombart, Jombart, Jun Kitano, Krueger, Langmead, Li, Li, Lindholm, Love, Luo, Mark Kirkpatrick, Martin, Martin, Martin, Meguro, Melissa Wilson Sayres, Muirhead, Natri, Neafsey, Nei, O’Neill, Payseur, Petit, Presgraves, Quinlan, Ravinet, Ross, Saetre, Sankararaman, Schwander, Sciuchetti, Smit, Stamatakis, Storchová, Stölting, Sun, Takahashi, Takahashi, Toews, Tosi, Toups, Tuttle, van Doorn, Vicoso, von Hippel, Wang, White, Yang, Yoshida, Yoshida, Úbeda   +78 more
core   +1 more source

Association of homologous chromosomes during floral development [PDF]

Current Biology, 1997
Reduction in chromosome number and genetic recombination during meiosis require the prior association of homologous chromosomes, and this has been assumed to be a central event in meiosis. Various studies have suggested, however, that while the reduction division of meiosis is a universally conserved process, the pre-meiotic association of homologues ...
Graham Moore, Luis Aragón-Alcaide, Peter Shaw, T. E. Miller, S. M. Reader, Alison F. Beven   +5 more
openaire   +3 more sources

HO Endonuclease-Initiated Recombination in Yeast Meiosis Fails To Promote Homologous Centromere Pairing and Is Not Constrained To Utilize the Dmc1 Recombinase

G3: Genes, Genomes, Genetics, 2018
Crossover recombination during meiosis is accompanied by a dramatic chromosome reorganization. In Saccharomyces cerevisiae, the onset of meiotic recombination by the Spo11 transesterase leads to stable pairwise associations between previously ...
Lina Yisehak, Amy J. MacQueen
doaj   +1 more source

On a break with the X: the role of repair of double-stranded DNA breaks in X-linked disease [PDF]

, 2012
The problem of managing free reactive DNA ends in eukaryotic cells has resulted in the development of a number of mechanisms in order to ensure that free ends are rendered non-reactive, or that the double-strand DNA breaks generating the free ends are ...
Cecceroni, Lucia, De Caris, Laura, Tummala, Hemanth   +2 more
core   +3 more sources

Securin Is Not Required for Chromosomal Stability in Human Cells [PDF]

, 2005
Abnormalities of chromosome number are frequently observed in cancers. The mechanisms regulating chromosome segregation in human cells are therefore of great interest.
Azofeifa, Bunz, Cahill, Ciosk, Cohen-Fix, Funabiki, Giménez-Abián, Gorr, Gruber, Haering, Hauf, Hauf, Huang, Jallepalli, Jürgen Cox, Katrin Pfleghaar, Losada, McGuinness, Mei, Michael R Speicher, Michor, Nasmyth, Olaf Stemmann, R. Scott Hawley, Ramos-Morales, Saez, Simone Heubes, Speicher, Stemmann, Stemmann, Uhlmann, Waizenegger, Zou   +32 more
core   +4 more sources

Mouse oocytes carrying metacentric Robertsonian chromosomes have fewer crossover sites and higher aneuploidy rates than oocytes carrying acrocentric chromosomes alone

Scientific Reports, 2022
Meiotic homologous recombination during fetal development dictates proper chromosome segregation in adult mammalian oocytes. Successful homologous synapsis and recombination during Meiotic Prophase I (MPI) depends on telomere-led chromosome movement ...
Parinaz Kazemi, Teruko Taketo
doaj   +1 more source

The origin of human chromosome 2 analyzed by comparative chromosome mapping with a DNA microlibrary [PDF]

, 1994
Fluorescencein situ hybridization (FISH) of microlibraries established from distinct chromosome subregions can test the evolutionary conservation of chromosome bands as well as chromosomal rearrangements that occurred during primate evolution and will ...
A Baldini, A Jauch, A. Jauch, B Dutrillaux, B. Horsthemke, C Lengauer, C Lengauer, C Lengauer, C. Lengauer, D Pinkel, G. Senger, H-J Lüdecke, H. -J. L�decke, J Wienberg, J Wienberg, J. Wienberg, JJ Yunis, JW Ijdo, LEM Boer de, M Djalali, M Klever, N. Arnold, P Lichter, R Avarello, R Stanyon, R Stanyon, RA Wells, T Cremer, T Ried, T. Cremer, U Trautmann, U. Claussen, Z Gelman-Kohan   +32 more
core   +1 more source

Human chromosome 19 homologies. [PDF]

Genome Biology, 2001
Gene sequence conservation and lineage-specific evolution are revealed by analysis of homologous sequences in human and mouse.
openaire   +2 more sources

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.
Da-Qiao Ding, Tokuko Haraguchi, Yasushi Hiraoka   +2 more
openaire   +3 more sources