Proliferation zones in adult medaka (Oryzias latipes) brain

Spatial distribution and cellular composition of adult brain proliferative zones in the teleost, Gymnotus omarorum

“…This is in agreement with the results reported in A. leptorhynchus, O. latipes, N. Furzeri, A. burtoni , and O. mossambicus , (Zupanc and Horschke, 1995; Kuroyanagi et al, 2010; Terzibasi et al, 2012; Maruska et al, 2012; Teles et al, 2012) and D. rerio (Zupanc et al, 2005; Zupanc, 2011). However, according to Adolf et al (2006) and Grandel et al (2006) this proliferation zone in D. rerio is restricted to the ventral portion of the diencephalic ventricle.…”

“…Proliferating cells were distributed all along the extension of the ventricular lining of the telencephalon in G. omarorum , with a prominent proliferation zone adjacent to the subpallium, similar to G. aculeatus (Ekström et al, 2001), D. rerio (Adolf et al, 2006; Grandel et al, 2006; Zupanc, 2011), O. bonariensis (Strobl-Mazzulla et al, 2010), A. burtoni (Maruska et al, 2012), O. mossambicus (Teles et al, 2012), A. leptorhynchus (in which the dorsal-lateral telencephalic division showed the largest amount of proliferating cells; Zupanc and Horschke, 1995), and O. latipes (Kuroyanagi et al, 2010). Very scarce proliferating cells were found in the OB of adult G. omarorum , most of which were located within the glomerular layer or at the dorsal-medial surface of the intermediate zone of the OB (corresponding to the rostralmost region of the telencephalic ventricle).…”

“…Among teleosts, adult cell proliferation and neurogenesis have been thoroughly characterized in wave type weakly electric gymnotids, particularly in Apteronotus leptorhynchus [ A. leptorhynchus : (Zupanc and Horschke, 1995; Zupanc et al, 1996; Zupanc, 2001; Hinsch and Zupanc, 2006); Eigenmannia sp: (Zupanc and Zupanc, 1992); and Brachyhypopomus gauderio : (Dunlap et al, 2011)]. The spatial distribution of brain proliferation zones in adult wave type weakly electric gymnotids roughly resembles that of other teleosts [ Astatotilapia burtoni (Maruska et al, 2012); Austrolebias (Fernández et al, 2011); Carassius auratus (Raymond and Easter, 1983; Delgado and Schmachtenberg, 2011); Danio rerio (Maeyama and Nakayasu, 2000; Zupanc et al, 2005; Adolf et al, 2006; Grandel et al, 2006; Ampatzis and Dermon, 2007; Kaslin et al, 2009; Ito et al, 2010; März et al, 2010; Zupanc, 2011); Gasterosteus aculeatus (Ekström et al, 2001); Nothobranchius furzeri (Terzibasi et al, 2012); Odontesthes bonariensis (Strobl-Mazzulla et al, 2010); Oreochromis mossambicus (Teles et al, 2012); Oryzias latipes (Nguyen et al, 1999; Candal et al, 2005a; Alunni et al, 2010; Kuroyanagi et al, 2010; Isoe et al, 2012) and Salmo trutta fario (Candal et al, 2005b)], despite the phylogenetic distance to most of those species. However, differences have been observed that were attributed to the functional specialization of weakly electric fish (Zupanc and Horschke, 1995; Grandel et al, 2006; Grandel and Brand, 2013).…”

Early life low intensity stress experience modifies acute stress effects on juvenile brain cell proliferation of European sea bass ( D. Labrax )

“…Juvenile E. sea bass brain was characterized by extensive active proliferation, including telencephalon, preoptic area, optic tectum, hypothalamus and cerebellum, which agrees with previous data of adult teleost fish brain of many species examined so far, including the gymnotiform fish (Apteronotus leptorhynchus) [43], the gilt-head sea bream (Sparus aurata) [25], the three-spined stickleback (Gasterosteus aculeatus) [44], the zebrafish (Danio rerio) [26][27][45][46], the medaka (Oryzias latipes) [47] and the annual teleostean fishes Austrolebias (Cyprinodontiform: Rivulidae) [48]. In agreement with previous studies in other teleost species [36][37], a populations of mitotically active cells were found to express the early neuronal marker TUC-4, within Dm, PGZ and VCe M (double-labeled BrdU-TUC-4), or BLBP stem cells (BrdU-BLBP) in PGZ and Dm.…”

On the Role of Neurogenesis and Neural Plasticity in the Evolution of Animal Personalities and Stress Coping Styles

“…There is also a robust regeneration of individual neurons and whole brain areas after damage [Kaslin et al, 2008;Zupanc, 2008a;Sîrbulescu and Zupanc, 2013;Skaggs et al, 2014]. This is made possible by pronounced proliferative activity that takes place in discrete proliferative zones in all areas of the fish brain [Zupanc and Horschke, 1995;Ekström et al, 2001;Zupanc et al, 2005;Grandel et al, 2006;Kuroyanagi et al, 2010]. These include areas homologous to the neurogenic zones in mammals, the olfactory bulb, and the lateral area of the dorsal telencephalon, with the latter being both anatomically and functionally homologous to the mammalian hippocampus [Rodriguez et al, 2002;Northcutt, 2006;Vargas et al, 2009;Broglio et al, 2010;Demski, 2013].…”