Multiple paths to similar germination behavior in Arabidopsis thaliana

摘要: Germination timing influences plant fitness, and its sensitivity to temperature may cause it change as climate shifts. These changes are likely be complex because temperatures that occur during seed maturation post-dispersal interact define germination timing. We used the model organism Arabidopsis thaliana determine how flowering time (which defines seed-maturation temperature) influence expression of genetic variation for germination. responses (germination envelopes) changed seeds aged, or after-ripened, these trajectories depended on genotype. Different combinations genotype, temperature, after-ripening produced similar envelopes. Likewise, different genotypes combined produce trajectories. Differences between were most observed at high low temperatures. The behavior some responds weakly maternal but others highly plastic. hypothesize weak dormancy induction could synchronize dispersed times. By contrast, we strongly responsive spread offspring over several possible windows. Considering is important predicting phenology evolution in future climates.