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001-es BibID:BIBFORM096013
Első szerző:Miklós Máté (biológus)
Cím:Phenotypic plasticity rather than genotype drives reproductive choices in Hydra populations / Máté Miklós, Levente Laczkó, Gábor Sramkó, Flóra Sebestyén, Zoltán Barta, Jácint Tökölyi
Dátum:2021
ISSN:0962-1083
Megjegyzések:Facultative clonality is associated with complex life cycles where sexual and asexual forms can be exposed to contrasting selection pressures. Facultatively clonal animals often have distinct developmental capabilities that depend on reproductive mode (e.g., negligible senescence and exceptional regeneration ability in asexual individuals, which are lacking in sexual individuals). Understanding how these differences in life history strategies evolved is hampered by limited knowledge of the population structure underlying sexual and asexual forms in nature. Here we studied genetic differentiation of coexisting sexual and asexual Hydra oligactis polyps, a freshwater cnidarian where reproductive mode-dependent life history patterns are observed. We collected asexual and sexual polyps from 13 Central European water bodies and used restriction-site associated DNA sequencing to infer population structure. We detected high relatedness among populations and signs that hydras might spread with resting eggs through zoochory. We found no genetic structure with respect to mode of reproduction (asexual vs. sexual). On the other hand, clear evidence was found for phenotypic plasticity in mode of reproduction, as polyps inferred to be clones differed in reproductive mode. Moreover, we detected two cases of apparent sex change (males and females found within the same clonal lineages) in this species with supposedly stable sexes. Our study describes population genetic structure in Hydra for the first time, highlights the role of phenotypic plasticity in generating patterns of life history variation, and contributes to understanding the evolution of reproductive mode-dependent life history variation in coexisting asexual and sexual forms.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
clonal reproduction
eco-evo- devo
phenotypic plasticity
population genomics
RAD-seq
sex change
Megjelenés:Molecular Ecology. - 30 : 5 (2021), p. 1206-1222. -
További szerzők:Laczkó Levente (1992-) (biológus) Sramkó Gábor (1981-) (biológus) Sebestyén Flóra (1993-) (biológus) Barta Zoltán (1967-) (biológus, zoológus) Tökölyi Jácint (1984-) (biológus)
Pályázati támogatás:NKFIH FK 124164
Egyéb
ÚNKP-19- 3
Egyéb
ÚNKP-19- 4
Egyéb
János Bolyai Research Scholarship of the Hungarian Academy of Sciences
Egyéb
Higher Education Institutional Excellence Program of the Ministry of Human Capacities in Hungary, FIK-Lendület Behavioral Ecology Research Group
Egyéb
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