Variation in mature seed size is the result of a complex array of interactions involving genes, genomes and environment that may change during development. Diggle et al. (pp. 309–319) study the dynamics of embryo and...
How far can a gene disperse? Historical and contemporary gene dispersal can be estimated from spatial genetic structure and paternity analysis, and Rong et al. (pp. 285–296) find that an estimate of gene flow in Daucus...
Hybrid lethality is a type of postzygotic isolation and is observed in some species of Nicotiana in association with genes encoded on the Q chromosome. Tezuka et al. (pp. 267–276) make interspecific crosses of eight...
Hourglass cells (HGC) are prominent cells in the legume seed coat. Miller et al. (pp. 235–242) document HGC development in soybean, Glycine max, and relate structural changes to expression of an HGC-specific soybean...
Considerable attention has been focused on how photosystem II (PSII) is assembled in vivo and how it is repaired following irreversible damage by visible light (so-called photoinhibition). Nixon et al. (pp. 1–16)...