Results 21 to 30 of about 343,749 (184)

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

Crystal structure of Hop2-Mnd1 and mechanistic insights into its role in meiotic recombination [PDF]

, 2015
In meiotic DNA recombination, the Hop2-Mnd1 complex promotes Dmc1-mediated single-stranded DNA (ssDNA) invasion into homologous chromosomes to form a synaptic complex by a yet-unclear mechanism.
Dal Peraro, Matteo, Dal Peraro, M., Kalantzi, Alexandra-Styliani, Toseland, Christopher P., Oh, B., Shin, H.-C., Oh, Byung-Ha, M D Peraro, A S Kalantzi, Toseland, C.P., Shin, Ho-Chul, S Gruber, Kalantzi, A., Kang, H.-A., Kang, H., Toseland, C., Ho-Chul Shin, Gruber, Stephan, Kalantzi, A.-S., Oh, B.-H., Kim, H.-M., H A Kang, B H Oh, Kang, Hyun-Ah, Kim, Hyun-Min, Gruber, S., H M Kim, Shin, H., C P Toseland, Kim, H.   +29 more
core   +2 more sources

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
core   +2 more sources

Kinesin-5 Eg5 is essential for spindle assembly and chromosome alignment of mouse spermatocytes

Cell Division, 2020
Background Microtubule organization is essential for bipolar spindle assembly and chromosome segregation, which contribute to genome stability. Kinesin-5 Eg5 is known to be a crucial regulator in centrosome separation and spindle assembly in mammalian ...
Zhen-Yu She, Ning Zhong, Kai-Wei Yu, Yu Xiao, Ya-Lan Wei, Yang Lin, Yue-Ling Li, Ming-Hui Lu   +7 more
doaj   +1 more source

Abnormal meiotic recombination with complex chromosomal rearrangement in an azoospermic man [PDF]

Reproductive BioMedicine Online, 2015
Spermatocyte spreading and immunostaining were applied to detect meiotic prophase I progression, homologous chromosome pairing, synapsis and recombination in an azoospermic reciprocal translocation 46, XY, t(5;7;9;13)(5q11;7p11;7p15;9q12;13p12) carrier.
Liu Wang, Furhan Iqbal, Guangyuan Li, Xiaohua Jiang, Ihtisham Bukhari, Hanwei Jiang, Qingling Yang, Liangwen Zhong, Yuanwei Zhang, Juan Hua, Howard J. Cooke, Qinghua Shi   +11 more
openaire   +2 more sources

Cytological analysis of MRE11 protein during early meiotic prophase I in Arabidopsis and tomato [PDF]

, 2008
Early recombination nodules (ENs) are multiprotein complexes that are thought to be involved in synapsis and recombination, but little is known about their components or how they may be involved in these events. In this study, we describe the cytological
Muyt, A., Lohmiller, L.D., Offenberg, H.H., Howard, B., Heyting, C., Grelon, M., Anderson, L.K.   +6 more
core   +1 more source

Exposure to low-dose bisphenol A impairs meiosis in the rat seminiferous tubule culture model: a physiotoxicogenomic approach.

PLoS ONE, 2014
BackgroundBisphenol A (BPA) is one of the most widespread chemicals in the world and is suspected of being responsible for male reproductive impairments. Nevertheless, its molecular mode of action on spermatogenesis is unclear.
Sazan Ali, Gérard Steinmetz, Guillaume Montillet, Marie-Hélène Perrard, Anderson Loundou, Philippe Durand, Marie-Roberte Guichaoua, Odette Prat   +7 more
doaj   +1 more source

On the origin of crossover interference : a chromosome oscillatory movement (COM) model [PDF]

, 2011
Background: It is now nearly a century since it was first discovered that crossovers between homologous parental chromosomes, originating at the Prophase stage of Meiosis I, are not randomly placed.
Maj A Hultén, Hultén, Maj A., Hultén Maj A   +2 more
core   +1 more source

Microsporogenesis associated with seed yield in Urochloa sexual polyploid hybrids

Crop Breeding and Applied Biotechnology, 2021
High seed yield is a fundamental characteristic of apomictic and sexual hybrids of the genus Urochloa P. Beauv. (syn. Brachiaria (Trin.) Griseb.).
Andréa Beatriz Diverio Mendes, Celina de Medeiros Ragalzi, Rosangela Maria Simeão, Jaqueline Rosimeire Verzignassi, Cacilda Borges do Valle, Maria de Fatima Pires da Silva Machado   +5 more
doaj  

Meiotic irregularities associated to cytomixis in Buddleja iresinoides (Griseb.) Hosseus. (Buddlejaceae) and Castilleja arvensis Schltdl. & Cham. (Orobanchaceae)

Caryologia, 2019
The current paper analyzes the male meiotic behavior in wild populations of Buddleja iresinoides and Castilleja arvensis from Piedmont areas of the Northwest Region of Argentina. Castilleja arvensis showed tetraploid number of chromosome of 2n = 24.
Aldo Ruben Andrada, Valeria de los Ángeles Páez, M.S. Caro, P. Kumar   +3 more
doaj   +1 more source