R. J. H. Sawers

This study characterizes a maize Pho1;2a allele that disrupts phosphorus translocation and alters the phosphate starvation response through transcriptomic changes.

The paper investigates how abiotic stress gradients affect mutualistic adaptation between teosinte and its rhizosphere biota, finding stronger local adaptation in colder sites but greater average benefits from less stressful biota.

This study demonstrates local adaptation of maize landraces through reciprocal transplantation experiments, showing higher fitness at native elevations and phenotypic differences between Mexican and South American populations.

This study shows that low nitrogen inhibits the phosphorus starvation response in maize, with low N suppressing P starvation gene induction and dominating the transcriptional response in combined NP stress.

The paper evaluates maize's response to arbuscular mycorrhizal fungi in the field using a genetic mapping population, finding AMF contributes to about one third of grain production and affects variety performance.

This study shows that inoculation with Rhizophagus irregularis increases maize biomass and nutrient content, with some nutrients exceeding expectations based on root growth alone.

This study shows that rhizosphere biota alter trait expression and covariance in teosinte, influencing local adaptation and responses to environmental changes.

The paper identifies regulatory variation in stress-related genes in Mexican highland maize using allele-specific expression analysis under benign conditions.

The paper proposes the CoCoA hypothesis, predicting adaptation and co-adaptation in species interactions along environmental gradients based on interaction conditionality.

The paper investigates how genetic variation in maize affects phosphorus acquisition efficiency through arbuscular mycorrhizal symbiosis, finding correlations with root hyphae abundance and PHT1 transporter transcripts.