... was principally due to spermatocytes stalling, then frequently dying, in anaphase and cytokinesis, resulting in fewer spermatids ( O'Donnell et al., 2012 ). More subtle meiotic defects during metaphase were also observed, including increased meiotic spindle MT density, MTs projecting from spindle poles at a wider...

...Emmanuelle Gigant; Marine Stefanutti; Kimberley Laband; Agata Gluszek-Kustusz; Frances Edwards; Benjamin Lacroix; Gilliane Maton; Julie C. Canman; Julie P. I. Welburn; Julien Dumont In most species, oocytes lack centrosomes. Accurate meiotic spindle assembly and chromosome segregation – essential...

... ; alex-mc.dougall@obs-vlfr.fr ) Competing interests statement The authors declare no competing financial interests. 7 12 2010 © 2011. 2011 Fertilization MAPK Asymmetric cell division Cell cycle Meiotic spindle Urochordate Ascidian Entry into and exit from mitosis...