Codominant grasses differ in gene expression under experimental climate extremes in native tallgrass prairie.

ABSTRACT: Extremes in climate, such as heat waves and drought, are expected to become more frequent and intense with forecasted climate change. Plant species will almost certainly differ in their responses to these stressors. We experimentally imposed a heat wave and drought in the tallgrass prairie ecosystem near Manhattan, Kansas, USA to assess transcriptional responses of two ecologically important C₄ grass species, Andropogon gerardii and Sorghastrum nutans. Based on previous research, we expected that S. nutans would regulate more genes, particularly those related to stress response, under high heat and drought. Across all treatments, S. nutans showed greater expression of negative regulatory and catabolism genes while A. gerardii upregulated cellul

SUBMITTER: Hoffman AM 

PROVIDER: S-EPMC5816582 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature