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

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About: Comparative study on ultrastructure and motility parameters of spermatozoa of tetraploid and hexaploid Siberian sturgeon Acipenser baerii Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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 differed highly 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 spermatozoa inhibited 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. 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 differed highly 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 spermatozoa inhibited 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. (en)
Title	Comparative study on ultrastructure and motility parameters of spermatozoa of tetraploid and hexaploid Siberian sturgeon Acipenser baerii Comparative study on ultrastructure and motility parameters of spermatozoa of tetraploid and hexaploid Siberian sturgeon Acipenser baerii (en)
skos:prefLabel	Comparative study on ultrastructure and motility parameters of spermatozoa of tetraploid and hexaploid Siberian sturgeon Acipenser baerii Comparative study on ultrastructure and motility parameters of spermatozoa of tetraploid and hexaploid Siberian sturgeon Acipenser baerii (en)
skos:notation	RIV/60076658:12520/11:43880105!RIV12-GA0-12520___
http://linked.open...avai/predkladatel	Fakulta rybářství a ochrany vod
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ED2.1.00/01.0024), P(GA523/08/0824), P(GPP502/10/P426), S
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Hulák, Martin Gela, David Flajšhans, Martin Kašpar, Vojtěch Rodina, Marek Pšenička, Martin
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Jihočeská univerzita v Českých Budějovicích / Fakulta rybářství a ochrany vod
http://linked.open...dnocenehoVysledku	191040
http://linked.open...ai/riv/idVysledku	RIV/60076658:12520/11:43880105
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	structure; motility; ploidy; sperm; Siberian sturgeon (en)
http://linked.open.../riv/klicoveSlovo	Siberian sturgeon motility ploidy sperm structure
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[308CE6E2CB71]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Ichthyology
http://linked.open...in/vavai/riv/obor	GL
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses Relationships of ploidy level, genome and cell size in model polyploid fish with cytological and physiological impacts on conservation and culture. Fertilization process in sturgeon, function of acrosome and prevention of polyspermy
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	27
http://linked.open...iv/tvurceVysledku	Flajšhans, Martin Gela, David Hulák, Martin Kašpar, Vojtěch Pšenička, Martin Rodina, Marek
http://linked.open...ain/vavai/riv/wos	000288864600088
issn	0175-8659
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1111/j.1439-0426.2011.01685.x
http://localhost/t...ganizacniJednotka	12520
is http://linked.open...avai/riv/vysledek of	Comparative study on ultrastructure and motility parameters of spermatozoa of tetraploid and hexaploid Siberian sturgeon Acipenser baerii Comparative study on ultrastructure and motility parameters of spermatozoa of tetraploid and hexaploid Siberian sturgeon Acipenser baerii

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