Traffic monitors at the cell periphery: the role of cell walls during early female reproductive cell differentiation in plants

- Female reproductive precursor cell fate is controlled by multiple somatic signals.
- Cell wall bound arabinogalactan proteins determine female reproductive precursor fate.
- Callose deposits in young ovules, mediated by GSL8, influence female gamete ploidy.
- Cell-type specific mRNA profiles capture cell wall gene expression in female reproductive precursor cells.