Results 81 to 90 of about 13,512 (241)

Amphioxus SYCP1 : a case of retrogene replacement and co-option of regulatory elements adjacent to the ParaHox cluster [PDF]

, 2018
MGG was supported by the University of St Andrews School of Biology Biotechnology and Biological Sciences Research Council DTG and the Wellcome Trust ISSF.
Ferrier, David E. K., Garstang, Myles G.
core   +1 more source

Testicular Morphology and Spermatogenesis in Potamotrygon motoro: Insights Into Reproduction of Freshwater Stingrays

Journal of Morphology, Volume 287, Issue 2, February 2026.
Electron microscopy of Potamotrygon motoro spermatozoa. a – Illustration of a schematic sperm cell depicting the helical head, intermediate piece (midpiece), and flagellum. b ‐ Helical heads (Hh) of spermatozoa inserted into the cytoplasm of Sertoli cells (S) through openings in the plasma membrane. Scales: 10 μm.
Maria Luiza Ribeiro Delgado, Patricia Postingel Quirino, Luciane Gomes‐Silva, Viktoriya Dzyuba, Borys Dzyuba, Alexandre Ninhaus‐Silveira, Rosicleire Veríssimo‐Silveira   +6 more
wiley   +1 more source

The PSMA8 subunit of the spermatoproteasome is essential for proper meiotic exit and mouse fertility.

PLoS Genetics, 2019
The ubiquitin proteasome system regulates meiotic recombination in yeast through its association with the synaptonemal complex, a 'zipper'-like structure that holds homologous chromosome pairs in synapsis during meiotic prophase I.
Laura Gómez-H, Natalia Felipe-Medina, Yazmine B Condezo, Rodrigo Garcia-Valiente, Isabel Ramos, José Angel Suja, José Luis Barbero, Ignasi Roig, Manuel Sánchez-Martín, Dirk G de Rooij, Elena Llano, Alberto M Pendas   +11 more
doaj   +1 more source

Sex chromosomes, synapsis, and cohesins: a complex affair [PDF]

, 2006
The final publication is available at http://link.springer ...
Berríos, Soledad, Calvente, Adela, Fernández-Donoso, Raúl, Fuente, Roberto dela, Gómez, Rocío, Page, Jesús, Parra, María Teresa, Rufas, Julio S., Santos, Jose Luis, Suja Sánchez, José Ángel, Viera, Alberto   +10 more
core   +3 more sources

Synaptonemal Complex and Microtubule Line Profiler

, 2019
Line profiler’s purpose is to evaluate datasets in a biological/biophysical context. The software recognizes line shaped structures in image data and computes their mean position and orientation with sub-pixel accuracy. For each line a mean intensity profile is calculated.
Zwettler, Fabian U., Spindler, Marie-Christin, Reinhard, Sebastian   +2 more
openaire   +1 more source

Proteomic analysis of the zone of degeneration at the mitosis–meiosis transition stage in wild‐caught male catshark (Scyliorhinus canicula), correlated with an unusually high‐water temperature in the English Channel

Journal of Fish Biology, Volume 108, Issue 2, Page 676-693, February 2026.
Abstract In the context of current global change, variations in water temperature are one of the environmental conditions with serious consequences for marine life, including reproductive processes. In the small spotted catshark Scyliorhinus canicula, spermatogenesis occurs in spermatocysts composed of synchronously developing germ cells associated ...
Fabian Jeanne, Stanislas Pilet, Sean Heighton, Benoît Bernay, Pascal Sourdaine   +4 more
wiley   +1 more source

OsRAD17 Is Required for Meiotic Double-Strand Break Repair and Plays a Redundant Role With OsZIP4 in Synaptonemal Complex Assembly

Frontiers in Plant Science, 2018
The repair of SPO11-dependent double-strand breaks (DSBs) by homologous recombination (HR) ensures the correct segregation of homologous chromosomes. In yeast and human, RAD17 is involved in DNA damage checkpoint control and DSB repair.
Qing Hu, Qing Hu, Chao Zhang, Chao Zhang, Zhihui Xue, Lijun Ma, Wei Liu, Yi Shen, Bojun Ma, Zhukuan Cheng, Zhukuan Cheng   +10 more
doaj   +1 more source

Structural analysis of the human SYCE2–TEX12 complex provides molecular insights into synaptonemal complex assembly [PDF]

Open Biology, 2012
The successful completion of meiosis is essential for all sexually reproducing organisms. The synaptonemal complex (SC) is a large proteinaceous structure that holds together homologous chromosomes during meiosis, providing the structural framework for ...
Owen R. Davies, Joseph D. Maman, Luca Pellegrini   +2 more
doaj   +1 more source

Evolutionary history of the mammalian synaptonemal complex [PDF]

Chromosoma, 2016
The synaptonemal complex (SC), a key structure of meiosis that assembles during prophase I, has been initially described 60 years ago. Since then, the structure has been described in many sexually reproducing organisms. However, the SC protein components were characterized in only few model organisms.
Johanna, Fraune, Céline, Brochier-Armanet, Manfred, Alsheimer, Jean-Nicolas, Volff, Katharina, Schücker, Ricardo, Benavente   +5 more
openaire   +2 more sources

Loss of E3 ligase HvST1 function substantially increases distal crossover frequency

New Phytologist, Volume 249, Issue 3, Page 1325-1341, February 2026.
Summary This study characterizes the function of a grass‐specific E3 ubiquitin ligase, HvST1, in regulating synapsis and crossover (CO) formation during meiosis in barley (Hordeum vulgare). In large‐genome cereals, COs are predominantly restricted to distal chromosomal regions, limiting genetic recombination and breeding flexibility.
Jamie Neil Orr, Sybille Ursula Mittmann, Luke Ramsay, Dominika Lewandowska, Abdellah Barakate, Malcolm Macaulay, Nicola McCallum, Robbie Waugh, Isabelle Colas   +8 more
wiley   +1 more source