Rhynchospora tenuis undergoes obligate, genome-wide achiasmy in both male and female meiosis.

Mathematical network models are extremely useful to capture complex propagation processes between different regions (nodes), e.g. the spread of an infectious agent between different countries, or the transport and replication of toxic proteins across different brain regions in neurodegenerative diseases. In these models, transport is modelled at the macroscale through an operator, the so-called graph Laplacian, based on the edge properties and topology, capturing the fluxes between different nodes of the network. However, this phenomenological approach fails to take into account the physical processes taking place, at the microscale, within the edge. A fundamental problem is then to obtain a transport operator from mechanistic principles based on the underlying transport process. Using advection-reaction-diffusion as a generic mechanism for inter-nodal exchanges, we derive a multiscale network transport model and derive the corresponding linear transport operator at the macroscale from first principles. This effective graph Laplacian is fully determined by the transport mechanisms along the edges at the microscale. We show that this operator correctly captures the transport, and we study its scaling properties with respect to edge length.

The first division of meiosis is unique in its capacity to halve the ploidy of future gametes. To this end, one key innovation compared with mitosis i…

Nature - SUMM2, a coiled-coil NLR, promotes the assembly of higher-order resistosome clusters to initiate cell death in plants.

The European potato germplasm originated from a few founding genotypes, and its narrow genetic base has since been broadened through introgressions from wild relatives. We combined pedigree records an...

Interview with Miltos Tsiantis, who studies plant development and is a Director at the Max Planck Institute for Plant Breeding Research in Cologne.

Cis-regulatory sequences, such as enhancers, play a crucial role in morphological evolution, but how their diversification leads to evolution of no...

SUMMARY OF WINNING ENTRY Innovations in the development of clonal hybrid crops Hybrid vigor, refers to the higher performance of a hybrid plant in comparison to those of its parents. Although hybrid s...

Several research teams have collaborated to develop a new computing pipeline that enables high-throughput quantification of ploidy, i.e., the number of copies of chromosomes, in different tissues base...