Results 21 to 30 of about 611,533 (294)

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

Modeling meiotic chromosomes indicates a size dependent contribution of telomere clustering and chromosome rigidity to homologue juxtaposition [PDF]

, 2012
Meiosis is the cell division that halves the genetic component of diploid cells to form gametes or spores. To achieve this, meiotic cells undergo a radical spatial reorganisation of chromosomes.
Penfold, Christopher A., Paul E Brown, Paul E. Brown (168021), Alastair S H Goldman, Christopher A. Penfold (168015), Neil D. Lawrence (168025), Penfold, C.A., Christopher A Penfold, Lawrence, Neil (Neil D.), Lawrence, N.D., Lawrence Neil D., Goldman Alastair S. H., Goldman, Alastair S. H., Alastair S. H. Goldman (168028), Brown Paul E., Neil D Lawrence, Penfold Christopher A., Brown, Paul E., Brown, P.E., Goldman, A.S.H.   +19 more
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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

Comparative transcription map of the wobbler critical region on mouse chromosome 11 and the homologous region on human chromosome 2p13-14 [PDF]

, 2002
Fuchs S, Resch K, Thiel C, et al. Comparative transcription map of the wobbler critical region on mouse chromosome 11 and the homologous region on human chromosome 2p13-14. BMC Genetics.
Schmitt-John, Thomas, Resch, Karin, Ulbrich Michael, Thiel, Cora, Schmitt-John Thomas, Fuchs, Sonja, Fuchs Sonja, Jockusch Harald, Resch Karin, Platzer, Matthias, Thiel Cora, Ulbrich-Lesner, Michael, Jockusch, Harald, Platzer Matthias   +13 more
core   +1 more source

Smc5/6 coordinates formation and resolution of joint molecules with chromosome morphology to ensure meiotic divisions [PDF]

, 2013
During meiosis, Structural Maintenance of Chromosome (SMC) complexes underpin two fundamental features of meiosis: homologous recombination and chromosome segregation.
Philip W. Jordan (265255), Copsey A., Prakash Arumugam, Sonya Newcombe (502072), Jordan, Philip W., Gray S., Alice Copsey (4460686), Alex D Herbert, Eva Hoffmann (159398), Li, Zhaobo, Shangming Tang, Zhaobo Li, Stephen Gray, Newnham, Louise, Herbert A.D., Chan, Andrew Chi-ho, Hannah G. Blitzblau (159462), Blitzblau, Hannah G., Gray, Stephen, Alex Herbert (725932), Hannah G Blitzblau, Hannah Blitzblau (5185454), Newcombe S., Tang, Shangming, Stephen Gray (3278418), Newnham L., Li Z., Hunter, Neil, Andrew Chi-ho Chan (3278421), Hochwagen, Andreas, Arumugam, Prakash, Shangming Tang (502071), Hochwagen A., Alice Copsey, Alice Copsey (502070), Copsey, Alice, Herbert, Alex D., Hoffmann E., Blitzblau H.G., Andreas Hochwagen (159466), Arumugam P., Louise Newnham, Neil Hunter, Philip W Jordan (16188074), Jordan P.W., Alex D. Herbert (502074), Philip W Jordan, Andrew Chi-Ho Chan, Louise Newnham (430862), Sonya Newcombe, Chan, Andrew Chi ho, Tang S., Prakash Arumugam (303310), Eva Hoffmann, Newcombe, Sonya, Andreas Hochwagen, Hunter N., Chan A.C.-h., Neil Hunter (155061), Steve Gray (5950955), Zhaobo Li (502073), Hoffmann, Eva   +61 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

A recurrent translocation is mediated by homologous recombination between HERV-H elements

Molecular Cytogenetics, 2012
Background Chromosome rearrangements are caused by many mutational mechanisms; of these, recurrent rearrangements can be particularly informative for teasing apart DNA sequence-specific factors.
Hermetz Karen E, Surti Urvashi, Cody Jannine D, Rudd M Katharine   +3 more
doaj   +1 more source

Resolution of Joint Molecules by RuvABC and RecG Following Cleavage of the Escherichia coli Chromosome by EcoKI [PDF]

, 2009
DNA double-strand breaks can be repaired by homologous recombination involving the formation and resolution of Holliday junctions. In Escherichia coli, the RuvABC resolvasome and the RecG branch-migration enzyme have been proposed to act in alternative ...
Okely Ewa, Leach David, David Leach, Wardrope, Laura, Leach, David, Ewa Okely, Laura Wardrope, Okely, Ewa, Wardrope Laura   +8 more
core   +2 more sources

Ultrastructural analysis of chromatin in meiosis I plus II of rye (Secale cereale L.) [PDF]

, 2004
Scanning electron microscopy (SEM) proves to be an appropriate technique for imaging chromatin organization in meiosis I and II of rye (Secale cereale) down to a resolution of a few nanometers.
Herrmann, Reinhold G., Zoller, J. F., Hohmann, U., Wanner, Gerhard   +3 more
core   +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 ...
Cremer, Thomas, Senger, G., Wienberg, Johannes, Claussen, U., Horsthemke, B., Arnold, N., Lüdecke, H. J., Jauch, Anna, Lengauer, Christoph   +8 more
core   +1 more source