Reproductive senescence and parental effects in an indeterminate grower.

Autor: Depeux C; Laboratoire Ecologie et Biologie des Interactions, UMR CNRS 7267, Université de Poitiers, Poitiers Cedex 9, France.; Laboratoire de Biométrie et Biologie Evolutive, UMR CNRS 558, Université Lyon 1, Villeurbanne cedex, France., Lemaître JF; Laboratoire de Biométrie et Biologie Evolutive, UMR CNRS 558, Université Lyon 1, Villeurbanne cedex, France., Moreau J; UMR CNRS 6282 Biogéosciences, Université Bourgogne Franche-Comté, Dijon, France.; Centre d'Études Biologiques de Chizé, UMR 7372, CNRS & La Rochelle Université, Villiers-en-bois, France., Dechaume-Moncharmont FX; Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Univ Lyon, Villeurbanne, France., Laverre T; Laboratoire Ecologie et Biologie des Interactions, UMR CNRS 7267, Université de Poitiers, Poitiers Cedex 9, France., Pauhlac H; Laboratoire Ecologie et Biologie des Interactions, UMR CNRS 7267, Université de Poitiers, Poitiers Cedex 9, France., Gaillard JM; Laboratoire de Biométrie et Biologie Evolutive, UMR CNRS 558, Université Lyon 1, Villeurbanne cedex, France., Beltran-Bech S; Laboratoire Ecologie et Biologie des Interactions, UMR CNRS 7267, Université de Poitiers, Poitiers Cedex 9, France.
Jazyk: angličtina
Zdroj: Journal of evolutionary biology [J Evol Biol] 2020 Sep; Vol. 33 (9), pp. 1256-1264. Date of Electronic Publication: 2020 Jul 31.
DOI: 10.1111/jeb.13667
Abstrakt: Reproductive senescence is the decrease of reproductive performance with increasing age and can potentially include trans-generational effects as the offspring produced by old parents might have a lower fitness than those produced by young parents. This negative effect may be caused either by the age of the father, mother or the interaction between the ages of both parents. Using the common woodlouse Armadillidium vulgare, an indeterminate grower, as a biological model, we tested for the existence of a deleterious effect of parental age on fitness components. Contrary to previous findings reported from vertebrate studies, old parents produced both a higher number and larger offspring than young parents. However, their offspring had lower fitness components (by surviving less, producing a smaller number of clutches or not reproducing at all) than offspring born to young parents. Our findings strongly support the existence of trans-generational senescence in woodlice and contradict the belief that old individuals in indeterminate growers contribute the most to recruitment and correspond thereby to the key life stage for population dynamics. Our work also provides rare evidence that the trans-generational effect of senescence can be stronger than direct reproductive senescence in indeterminate growers.
(© 2020 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2020 European Society For Evolutionary Biology.)
Databáze: MEDLINE
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