Results 21 to 30 of about 311,541 (282)

Competition for Chiasma Formation Between Identical and Homologous (But Not Identical) Chromosomes in Synthetic Autotetraploids of Arabidopsis thaliana

Frontiers in Plant Science, 2019
Polyploid organisms provide additional opportunities to study meiosis in a more complex context since more than two potential homologous chromosomes are available.
Pablo Parra-Nunez, Mónica Pradillo, Juan Luis Santos   +2 more
doaj   +1 more source

FBXO47 is essential for preventing the synaptonemal complex from premature disassembly in mouse male meiosis

iScience, 2022
Summary: Meiotic prophase I is a prolonged G2 phase that ensures the completion of numerous meiosis-specific chromosome events. During meiotic prophase I, homologous chromosomes undergo synapsis to facilitate meiotic recombination yielding crossovers. It
Nobuhiro Tanno, Kazumasa Takemoto, Yuki Takada-Horisawa, Ryuki Shimada, Sayoko Fujimura, Naoki Tani, Naoki Takeda, Kimi Araki, Kei-ichiro Ishiguro   +8 more
doaj   +1 more source

Double in situ hybridization in combination with digital image analysis: A new approach to study interphase chromosome topography [PDF]

, 1989
Double in situ hybridization with mercurated and biotinylated chromosome specific DNA probes in combination with digital image analysis provides a new approach to compare the distribution of homologous and nonhomologous chromosome targets within ...
Cremer, Christoph, Cremer, Thomas, Emmerich, Patricia, Higgins, Michael J., Hopman, Anton H. N., Jauch, Anna, Loos, Peter, Van Der Ploeg, Mels, White, Bradley N., Wiegant, Joop   +9 more
core   +1 more source

Meiotic Chromosome Dynamics in Zebrafish

Frontiers in Cell and Developmental Biology, 2021
Recent studies in zebrafish have revealed key features of meiotic chromosome dynamics, including clustering of telomeres in the bouquet configuration, biogenesis of chromosome axis structures, and the assembly and disassembly of the synaptonemal complex ...
Yukiko Imai, Ivan Olaya, Ivan Olaya, Noriyoshi Sakai, Noriyoshi Sakai, Sean M. Burgess   +5 more
doaj   +1 more source

Direct and indirect control of the initiation of meiotic recombination by DNA damage checkpoint mechanisms in budding yeast [PDF]

, 2013
Meiotic recombination plays an essential role in the proper segregation of chromosomes at meiosis I in many sexually reproducing organisms. Meiotic recombination is initiated by the scheduled formation of genome-wide DNA double-strand breaks (DSBs).
AJ MacQueen, AL Goldstein, BH Lee, Bilge Argunhan, C Buhler, CY Bonilla, E Martini, EF Joyce, G Vader, H Sasanuma, H Sun, H Toyoizumi, H Tsubouchi, H-C Ho, H-Y Wu, HG Blitzblau, Hideo Tsubouchi, Hiroshi Toyoizumi, J Lange, JC Harrison, JE Haber, JL Gerton, KA Henderson, KS Tung, L Wan, L Xu, L Zou, M Lichten, M Lisby, M Petronczki, Michael Lichten, MJ Neale, Neil Humphryes, S Chu, S Farmer, S Farmer, S Keeney, Sarah Farmer, Tomomi Tsubouchi, Wing-Kit Leung, Yaroslav Terentyev   +40 more
core   +7 more sources

Inter- and intra-specific gene-density-correlated radial chromosome territory arrangements are conserved in Old World monkeys [PDF]

, 2005
Recently it has been shown that the gene-density correlated radial distribution of human 18 and 19 homologous chromosome territories (CTs) is conserved in higher primates in spite of chromosomal rearrangements that occurred during evolution.
ISHIDA Takafumi, KüPPER Katrin, MIZUSAWA Hiroshi, NEUSSER Michaela, TANABE Hideyuki, 秀之 田辺　   +5 more
core   +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

ASYNAPSIS 1 ensures crossover fidelity in polyploid wheat by promoting homologous recombination and suppressing non-homologous recombination

Frontiers in Plant Science, 2023
During meiosis, the chromosome axes and synaptonemal complex mediate chromosome pairing and homologous recombination to maintain genomic stability and accurate chromosome segregation.
Chiara Di Dio, Heïdi Serra, Pierre Sourdille, James D. Higgins   +3 more
doaj   +1 more source

Phylogenetic inferences of Atelinae (Platyrrhini) based on multi-directional chromosome painting in Brachyteles arachnoides, Ateles paniscus paniscus and Ateles b. marginatus [PDF]

, 2005
We performed multi-directional chromosome painting in a comparative cytogenetic study of the three Atelinae species Brachyteles arachnoides, Ateles paniscus paniscus and Ateles belzebuth marginatus, in order to reconstruct phylogenetic relationships ...
C. Nagamachi, Collins AC, Consigliere S, Dutrillaux B, Dutrillaux B, E.H.C. de Oliveira, Garcia F, Garcia F, I.J. Sbalqueiro, J.C. Pieczarka, Kay RF, Kellogg R, Kunkel LM, M. Neusser, Muller S, Pequignot E, Pieczarka JC, S. Müller   +17 more
core   +1 more source

Improved reconstruction and comparative analysis of chromosome 12 to rectify Mis-assemblies in Gossypium arboreum

BMC Genomics, 2020
Background Genome sequencing technologies have been improved at an exponential pace but precise chromosome-scale genome assembly still remains a great challenge. The draft genome of cultivated G.
Javaria Ashraf, Dongyun Zuo, Hailiang Cheng, Waqas Malik, Qiaolian Wang, Youping Zhang, Muhammad Ali Abid, Qiuhong Yang, Xiaoxu Feng, John Z. Yu, Guoli Song   +10 more
doaj   +1 more source