Comparative study on ultrastructure and motility parameters of spermatozoa of tetraploid and hexaploid Siberian sturgeon Acipenser baerii

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F11%3A43880105" target="_blank" >RIV/60076658:12520/11:43880105 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1111/j.1439-0426.2011.01685.x" target="_blank" >http://dx.doi.org/10.1111/j.1439-0426.2011.01685.x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/j.1439-0426.2011.01685.x" target="_blank" >10.1111/j.1439-0426.2011.01685.x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparative study on ultrastructure and motility parameters of spermatozoa of tetraploid and hexaploid Siberian sturgeon Acipenser baerii

Popis výsledku v původním jazyce

Siberian sturgeon is supposed to be species of functionally tetraploidy (4n) producing diploid (2n) sperm. Large-scale screening of ploidy levels revealed one hexaploid (6n) male specimen producing triploid spermatozoa. This sperm was compared in terms of ultrastructure and motility features. All evaluated morphometrical characteristics showed significantly higher values in spermatozoa of 6n in comparison with 4n Siberian sturgeon males. Mean values of velocities at the beginning of activation differedhighly significant between spermatozoa of 6n and 4n males in time 15 and 30 s post activation. Nevertheless their velocities did not show significant differences in 45 and 60 s post activation. It was supposed that the bigger head of 6n male spermatozoainhibited motility at the beginning of activation, but later the longer flagellum and bigger midpiece with higher number of mitochondria can balance the increased sizes of heads in spermatozoa movement of male with higher ploidy level.

Název v anglickém jazyce

Comparative study on ultrastructure and motility parameters of spermatozoa of tetraploid and hexaploid Siberian sturgeon Acipenser baerii

Popis výsledku anglicky

Siberian sturgeon is supposed to be species of functionally tetraploidy (4n) producing diploid (2n) sperm. Large-scale screening of ploidy levels revealed one hexaploid (6n) male specimen producing triploid spermatozoa. This sperm was compared in terms of ultrastructure and motility features. All evaluated morphometrical characteristics showed significantly higher values in spermatozoa of 6n in comparison with 4n Siberian sturgeon males. Mean values of velocities at the beginning of activation differedhighly significant between spermatozoa of 6n and 4n males in time 15 and 30 s post activation. Nevertheless their velocities did not show significant differences in 45 and 60 s post activation. It was supposed that the bigger head of 6n male spermatozoainhibited motility at the beginning of activation, but later the longer flagellum and bigger midpiece with higher number of mitochondria can balance the increased sizes of heads in spermatozoa movement of male with higher ploidy level.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GL - Rybářství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Applied Ichthyology

ISSN

0175-8659

e-ISSN

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Svazek periodika

27

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

4

Strana od-do

683-686

Kód UT WoS článku

000288864600088

EID výsledku v databázi Scopus

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