How does induced polyploidy affect the swimming and physiological performance of juvenile sterlet (Acipenser ruthenus) and Siberian sturgeon (Acipenser baerii) and their reciprocal hybrids?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F23%3A43906236" target="_blank" >RIV/60076658:12520/23:43906236 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.aquaculture.2022.739189" target="_blank" >https://doi.org/10.1016/j.aquaculture.2022.739189</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aquaculture.2022.739189" target="_blank" >10.1016/j.aquaculture.2022.739189</a>

Result language

angličtina

Original language name

How does induced polyploidy affect the swimming and physiological performance of juvenile sterlet (Acipenser ruthenus) and Siberian sturgeon (Acipenser baerii) and their reciprocal hybrids?

Original language description

Spontaneous triploidization has been widely documented in cultured populations of many sturgeon species and the evidence of its occurrence in the wild has also been provided. We compared the critical swimming speed (Ucrit) of nine-month-old normoploid and triploidized individuals (obtained from normal fertilization or from normal fertilization followed by induction of the second polar body retention, respectively) of sterlet (Acipenser ruthenus), Siberian sturgeon (Acipenser baerii), and their reciprocal hybrids. Moreover, we assessed the primary haematological indices (blood haemoglobin concentration, Hb; haematocrit, PCV; erythrocyte count, RBC count), secondary haematological indices (mean erythrocyte volume, MEV; mean erythrocyte haemoglobin, MEH; mean erythrocytic haemoglobin concentration, MEHC) and plasma/serum chemistry (cortisol, osmolality and glucose) of both non-exercised and exercised sturgeons to investigate the ploidy-related differences. We found that in both purebreds and hybrids, triploidized sturgeons exhibited the same absolute and corrected Ucrit as normoploids. Triploidized sturgeons had lower RBC counts and larger erythrocytes with more haemoglobin than normoploids, but the increase in ploidy did not affect Hb, PCV, MEHC, plasma cortisol, plasma osmolality or serum glucose, except for the greater PCV in triploidized sterlet x Siberian sturgeon and higher levels of serum glucose in triploidized Siberian sturgeon x sterlet than in normoploids of the same hybrids. The magnitudes of exercise-induced changes in the inspected parameters were consistent between normoploid and triploidized populations. We conclude that juvenile triploidized sterlet, Siberian sturgeon, sterlet x Siberian sturgeon and Siberian sturgeon x sterlet were able to fully compensate for having fewer erythrocytes in their Hb and PCV and had the same oxygen carrying capacity as normoploids. Moreover, the magnitude of haematological and blood chemistry responses to exhaustive exercise did not differ between normoploid and triploidized sturgeons, and triploidization did not result in altered swimming performance.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40103 - Fishery

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

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

Name of the periodical

Aquaculture

ISSN

0044-8486

e-ISSN

1873-5622

Volume of the periodical

566

Issue of the periodical within the volume

neuvedeno

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

12

Pages from-to

—

UT code for WoS article

000913575300001

EID of the result in the Scopus database

2-s2.0-85144856584