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Elsevier, Basic and Applied Ecology, 8(11), p. 702-708

DOI: 10.1016/j.baae.2010.09.004

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Year-to-year changes in expression of maternal effects in perennial plants

Journal article published in 2010 by Vít Latzel ORCID, Jitka Klimešová
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Although there are numerous examples of maternal effects in perennial plant species, studies usually follow the fate of progeny only in their juvenile stages or for one growing season. Here we experimentally demonstrate, for two perennial species, that maternal nutrient environments and disturbance histories affect progeny differently during their first two growing seasons.Whereas progeny of mothers that suffered nutrient insufficiency produced more spikes in the first season, they produced equal spikes in the second season when compared to progeny of mothers from benign conditions. The progeny of mothers that had been grown in nutrient-poor conditions grew longer leaves in their second year, when compared to progeny of mothers from nutrient-poor conditions that experienced severe disturbance (removal of all above-ground biomass) but this was not the case in their first year. Additionally, progeny of mothers that experienced severe disturbance and were grown in nutrient-poor conditions produced longer leaves when compared to progeny of disturbed mothers grown in nutrient-rich conditions in the second year but this pattern was not observed in first year of the study.The changing expression of maternal effects in our study showed the necessity of longer-term studies to identify the effects and to determine their roles in the ecology of perennial species. We also suggest possible mechanisms responsible for the observed patterns.