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- W2803149229 abstract "Resource allocation plasticity enables individuals to alter patterns of nutrient use between reproductive and vegetative output to better fit their current environment. In sexually labile plant species, abiotic environmental factors can influence expression of dimorphic gender, resulting in environmental sex determination (ESD), which potentially reduces the need for plasticity of resource allocation by preemptively matching an individual's future nutrient demands to resource availability in its location. Ceratopteris richardii gametophytes exhibit gender-dependent differences in relative carbon and nitrogen content, and ESD in certain nutrient environments. This study examined whether prior ESD in C. richardii gametophyte populations reduced subsequent plasticity of reproductive allocation compared to instances where no ESD occurred, by quantifying phenotypic responses to reduced P, N, or CO 2 availabilities. All three nutrient-limited environments resulted in decreased size of egg-bearing (meristic) gametophytes compared to nonlimited environments, but gametophytes failed to respond to N and CO 2 limitation at the time of sex determination, resulting in no ESD. N limitation resulted in a predictable allometric re-allocation of resources based on small gametophyte size, whereas CO 2 limitation caused a change in reproductive output consistent with true plasticity. Withholding exogenous P caused ESD and had no effect on relative reproductive output of resultant meristic gametophytes because the size decrease was minor. Under P limitation, ESD matched the resource demands of gender phenotypes to their environment before the onset of developmental dimorphism, reducing the need for large allocation adjustments after sex determination." @default.
- W2803149229 created "2018-06-01" @default.
- W2803149229 creator A5008740089 @default.
- W2803149229 creator A5062866660 @default.
- W2803149229 date "2018-05-20" @default.
- W2803149229 modified "2023-10-06" @default.
- W2803149229 title "Plasticity of female reproductive resource allocation depends on the presence or absence of prior environmental sex determination in Ceratopteris richardii" @default.
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- W2803149229 doi "https://doi.org/10.1002/ece3.4159" @default.
- W2803149229 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6024121" @default.
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- W2803149229 hasPublicationYear "2018" @default.
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