a 2023

Reproduction-associated costs facilitating the coexistence of asexual and sexual forms of gibel carp (Carassius gibelio)

VETEŠNÍKOVÁ ŠIMKOVÁ, Andrea; Tomáš PAKOSTA; Michal JANÁČ; Pavel HYRŠL; Lukáš VETEŠNÍK et al.

Základní údaje

Originální název

Reproduction-associated costs facilitating the coexistence of asexual and sexual forms of gibel carp (Carassius gibelio)

Vydání

XVII European Congress of Ichthyology 2023: 4th - 8th September 2023, Prague, 2023

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10613 Zoology

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/23:00139758

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

gibel carp; gynogenesis; coexistence; reproduction costs

Anotace

V originále

The coexistence of sexual and asexual lineages is rarely documented in vertebrates. Various ecological and evolutionary mechanisms have been proposed to explain their stable coexistence. Gibel carp (Carassius gibelio) is highly invasive freshwater fish in Europe combining gynogenesis (sperm-dependent parthenogenesis) and sexual reproduction. We focused on vigour-related traits in gynogenetic and sexual forms of gibel carp coexisting in the same habitat, to reveal whether there is a link between parasite load and vigour-related traits reflecting the potential advantage of one reproductive form over another, which may eventually facilitate the obligatory coexistence of sperm-dependent gynogenetic females with sexual males. Using physiological parameters (indexes of somatic condition, energetic condition, and reproductive performance; glucose levels; and erythrocytes-related variables), diploid sexual males, diploid sexual females, and triploid gynogenetic females were found to be clearly differentiated. However, based on immune variables representing innate immunity, specific immunity, and index of immunocompetence, sexual males were only weakly differentiated from both groups of females. We revealed different patterns of interactions between parasite abundance and immune variables between sexual and gynogenetic forms. Using parasite assemblage composition, different relationships between parasite assemblage and immunity or physiology in sexual males and sexual females were evidenced, potentially related to male reproduction biology. In contrast, gynogenetic females exhibited the advantage that neither immunity nor physiology were affected by multiple parasite species. Our study suggest that reproduction mode-associated costs of immunity may facilitate to the coexistence of the asexual-sexual complex. We highlight that multiple ecological processes and evolutionary mechanisms contribute to the real coexistence of asexuals and sexuals of gibel carp.

Návaznosti

GA22-27023S, projekt VaV
Název: Evoluční a ekologické mechanizmy koexistence asexuální a sexuální reprodukce u ryb
Investor: Grantová agentura ČR, Evolutionary and ecological mechanisms of the coexistence of asexual and sexual reproduction in fish