Entries by Celine Caseys

Loss-of-Function, a Strategy for Adaptation in Arabidopsis

When thinking about adaptive processes, the concept of genetic innovation comes to mind. At the genomic scale, a lot of attention has been given to gene introgression, duplication, and novel functionalization to uncover the bases of adaptation. However, as the majority of genes are non-essential, both the gain and loss of genetic information can help […]

Ferroptosis: A companion of ROS in fighting Magnaporthe in rice

Invasion of plant tissues by pathogens is well known to activate localized reactive oxygen species (ROS) production and cell death.  However, the sources of ROS production and their role in triggering cell death are enigmatic. A recent study by Dangol et al. (2018) shows that, in rice (Oryza sativa), immunity-associated ROS production and cell death […]

Modulation of Resistance Genes: Two Paths to Alternaria Resistance in Apple

Apple (Malus x domestica) is a major fruit crop worldwide that faces production losses due to many pathogens. Among them, Alternaria alternata is a fungal pathogen that causes necrotic leaf spots (see Figure), defoliation, and moldy fruit cores and constitutes a serious threat to orchards. Different strains of the pathogen with varying pathogenicity and host […]

Regulatory Divergence in the Stress Response of Tomato

Humans have domesticated crops for thousand of years by artificially selecting plants for numerous traits including morphology, lower toxicity or higher yield. As a result, plant domestication often altered plant fitness and resistance to stress under controlled conditions (Meyer & Purugganan 2013). Typically, in tomato the fruit size was improved at the cost of plant […]