Effect of drought on herbivore-induced plant gene expression: Population comparison for range limit inferences

ABSTRACT: Low elevation “trailing edge” range margin populations typically face increases in both abiotic and biotic stressors that may contribute to range limit development. We hypothesize that selection may act on ABA and JA signaling pathways for more stable expression needed for range expansion, but that antagonistic crosstalk prevents their simultaneous co-option. To test this hypothesis, we compared high and low elevation populations of Boechera stricta that have diverged for constitutive levels of glucosinolate defenses and root:shoot ratios; neither population has high levels of both traits. If constraints imposed by antagonistic signaling underlies this divergence, one would predict that high constitutive levels of traits would coincide with lower plasticity. To test this prediction,

ORGANISM(S): Boechera stricta

SUBMITTER: Gunbharpur Gill 

PROVIDER: E-GEOD-78101 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress