Title
No detectable maternal effects of elevated <tex>$CO_{2}$</tex> on **Arabidopsis thaliana** over 15 generations
Author
Faculty/Department
Faculty of Sciences. Biology
Publication type
article
Publication
Subject
Biology
Source (journal)
PLoS ONE
Volume/pages
4(2009) :6 , p. e6035,1-e6035,9
ISSN
1932-6203
ISI
000267356900001
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Maternal environment has been demonstrated to produce considerable impact on offspring growth. However, few studies have been carried out to investigate multi-generational maternal effects of elevated CO2 on plant growth and development. Here we present the first report on the responses of plant reproductive, photosynthetic, and cellular characteristics to elevated CO2 over 15 generations using Arabidopsis thaliana as a model system. We found that within an individual generation, elevated CO2 significantly advanced plant flowering, increased photosynthetic rate, increased the size and number of starch grains per chloroplast, reduced stomatal density, stomatal conductance, and transpiration rate, and resulted in a higher reproductive mass. Elevated CO2 did not significantly influence silique length and number of seeds per silique. Across 15 generations grown at elevated CO2 concentrations, however, there were no significant differences in these traits. In addition, a reciprocal sowing experiment demonstrated that elevated CO2 did not produce detectable maternal effects on the offspring after fifteen generations. Taken together, these results suggested that the maternal effects of elevated CO2 failed to extend to the offspring due to the potential lack of genetic variation for CO2 responsiveness, and future plants may not evolve specific adaptations to elevated CO2 concentrations.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/3a7353/23cb9431.pdf
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