caa a22 4500 606193146 CHVBK 20210128100908.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10682-014-9735-6 doi (NATIONALLICENCE)springer-10.1007/s10682-014-9735-6 Maternal environmental effects of competition influence evolutionary potential in rapeseed ( Brassica rapa ) [Elektronische Daten] [Jennifer Dechaine, Marcus Brock, Cynthia Weinig] Maternal environmental effects reflect the contribution of the maternal environment to the offspring phenotype. Maternal effects are prevalent in plants and animals and may undergo adaptive evolution and affect patterns of natural selection within and across generations. Here, we raise two generations of a rapeseed (Brassica rapa) population derived from a cross between a rapid-cycling and an oilseed genotype in competitive and noncompetitive settings. Maternal environment had little effect on average offspring phenotypes. Maternal genotypes, however, differed in the sensitivity of almost all offspring phenotypes to the maternal environment, demonstrating genetic variation in maternal effects for traits expressed throughout ontogeny. Maternal environment did not significantly affect progeny seed production, and maternal genotypes were not variable for this trait, indicating no evidence for direct maternal effects on offspring fitness. Maternal environment influenced natural selection in the progeny generation; disruptive selection acted on seed mass among seeds matured in the noncompetitive maternal environment versus no significant selection on this trait for seeds matured in the competitive maternal environment. Although maternal effects did not directly increase fitness, they did affect evolutionary potential and selection in the progeny generation. These results suggest that diverse phenotypes of both wild and cultivated B. rapa genotypes will depend on the maternal environment in which the seeds are matured. Springer International Publishing Switzerland, 2014 Maternal effects nationallicence Plasticity nationallicence Adaptive evolution nationallicence Recombinant inbred lines nationallicence Selection nationallicence Shade nationallicence Dechaine Jennifer Department of Biological Sciences, Central Washington University, 98926, Ellensburg, WA, USA aut Brock Marcus Department of Botany, University of Wyoming, 82071, Laramie, WY, USA aut Weinig Cynthia Department of Botany, University of Wyoming, 82071, Laramie, WY, USA aut Evolutionary Ecology Springer International Publishing 29/1(2015-01-01), 77-91 0269-7653 29:1<77 2015 29 10682 https://doi.org/10.1007/s10682-014-9735-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10682-014-9735-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dechaine Jennifer Department of Biological Sciences, Central Washington University, 98926, Ellensburg, WA, USA aut NATIONALLICENCE 700 1- Brock Marcus Department of Botany, University of Wyoming, 82071, Laramie, WY, USA aut NATIONALLICENCE 700 1- Weinig Cynthia Department of Botany, University of Wyoming, 82071, Laramie, WY, USA aut NATIONALLICENCE 773 0- Evolutionary Ecology Springer International Publishing 29/1(2015-01-01), 77-91 0269-7653 29:1<77 2015 29 10682