Results 161 to 170 of about 1,277 (205)

First evidence of autotriploidization in sterlet (Acipenser ruthenus)

Journal of Applied Genetics, 2013
Polyploidization has played an important role in vertebrate evolution. Acipenseridae bring clear examples of polyploidy ancestry and, also, polyploidization seems to be an ongoing process in these fishes. In the present study, the genetic origin of six triploid specimens morphologically determined as Acipenser ruthenus from commercial aquaculture was ...
M, Havelka, M, Hulák, M, Rodina, M, Flajšhans   +3 more
openaire   +2 more sources

CD3ε homologues in the chondrostean fish Acipenser ruthenus

Immunogenetics, 2000
CD3epsilon is an essential component of the T-cell receptor (TCR) complex for antigen. We report here molecular cloning and characterization of cDNAs encoding the CD3epsilon homologues in sterlet (Acipenser ruthenus), a representative of primitive chondrostean fishes.
B Y, Alabyev, S V, Guselnikov, A M, Najakshin, L V, Mechetina, A V, Taranin   +4 more
openaire   +2 more sources

Complete mitochondrial genome of sterlet (Acipenser ruthenus)

Mitochondrial DNA, 2013
The complete mitochondrial genome of sterlet (Acipenser ruthenus) was determined in this study. The mitogenome is 16,790 bp in length and contains 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes and 2 non-coding regions (the control region and the putative origin of the light strand replication) with a typical vertebrate ...
Chao, Li, Lei, Cheng, Jiong-Tang, Li, Cui-Yun, Lu, Yany, Wang, Xiao-Wen, Sun   +5 more
openaire   +2 more sources

Hypothalamus-pituitary-interrenal (HPI) axis signaling in Atlantic sturgeon (Acipenser oxyrinchus) and sterlet (Acipenser ruthenus)

General and Comparative Endocrinology, 2023
In vertebrates, the hypothalamic-pituitaryadrenal/interrenal (HPA/HPI) axis is a highly conserved endocrine axis that regulates glucocorticoid production via signaling by corticotropin releasing hormone (CRH) and adrenocorticotropic hormone (ACTH).
Ciaran A. Shaughnessy, Valorie D. Myhre, Daniel J. Hall, Stephen D. McCormick, Robert M. Dores   +4 more
openaire   +2 more sources

Impact of cryopreservation on sterlet, Acipenser ruthenus sperm motility and proteome

Animal Reproduction Science, 2018
Fish sperm cryopreservation is a well-established technique allowing for artificial insemination on a commercial scale. The extent of proteome alterations in seminal plasma and sperm due to cryopreservation, however, is not known. This study was conducted to evaluate the effect of cryopreservation on motility variables of sterlet Acipenser ruthenus ...
Miaomiao, Xin, Anna, Shaliutina-Kolesova, Jan, Sterba, Peter, Konik, Sergii, Boryshpolets, Marek, Rodina, Ping, Li, Rui, Nian, Otomar, Linhart   +8 more
openaire   +2 more sources

Role of Ca2+ in the IVM of spermatozoa from the sterlet Acipenser ruthenus

Reproduction, Fertility and Development, 2016
The role of Ca2+ in sturgeon sperm maturation and motility was investigated. Sperm from mature male sterlets (Acipenser ruthenus) were collected from the Wolffian duct and testis 24 h after hormone induction. Testicular spermatozoa (TS) were incubated in Wolffian duct seminal fluid (WDSF) for 5 min at 20°C and were designated ‘TS after IVM’ (TSM ...
Olga, Bondarenko, Borys, Dzyuba, Marek, Rodina, Jacky, Cosson   +3 more
openaire   +2 more sources

The development of the scales of Acipenser ruthenus

Journal of Morphology, 1926
AbstractThe different kinds of scales characteristic of the adult sturgeon are described and the facts of ontogenesis which throw light on the history of these structures are presented.The scales of Acipenser are exclusively mesenchymatous and therefore are not morphologically comparable with the placoid scales of elasmobranchs.
openaire   +1 more source

Size determination of Acipenser ruthenus spermatozoa in different types of electron microscopy

Micron, 2010
In this study three types of scanning electron microscopes were used for the size determination of spermatozoa of sterlet Acipenser ruthenus - high vacuum scanning electron microscope (SEM, JEOL 6300), environmental scanning electron microscope (ESEM, Quanta 200 FEG), field emission scanning electron microscope (FESEM, JEOL 7401F) with cryoattachment ...
Martin, Psenicka, Martina, Tesarová, Jakub, Tesitel, Jana, Nebesárová   +3 more
openaire   +2 more sources

Quantification of egg proteome changes during fertilization in sterlet Acipenser ruthenus

Biochemical and Biophysical Research Communications, 2017
Eggs of sterlet are discharged outside into ambient aquatic environment where egg activation and fertilization occur. Effects of different activation media including freshwater and clay suspension on protein abundances of egg were quantified in sterlet Acipenser ruthenus.
Hamid, Niksirat, Liselotte, Andersson, Amin, Golpour, Latifeh, Chupani, Peter, James   +4 more
openaire   +2 more sources

Motility and fertilizing capability of cryopreserved Acipenser ruthenus L. sperm

Journal of Applied Ichthyology, 1999
Summary Motility before and after cryopreservation of Acipenser ruthenus sperm was determined by computer-assisted sperm motion analysis (CASA). In addition, fertility of fresh and frozen/ thawed sperm was tested by in vitro fertilization. Sperm of A.
H. Jähnichen, D. Wamecke, E. Trölsch, K. Kohlmann, H. Bergler, H.J. Pluta   +5 more
openaire   +1 more source