Is there selection minimizing the costs of ovule production? Such selection should lead to a smaller ovule size in relation to seed size and, at the same time, smaller variation in ovule size within plants, the latter...
Archipelagos provide a valuable framework for investigating phenotypic evolution under different levels of geographical isolation. GarcΓa-Verdugo et al. analysed two co-distributed, widespread plant lineages to examine...
Homologous organs produced by individual plants are not identical, and within-plant phenotypic variance often exceeds variance between plants. Alonso et al. hypothesised that epigenetic mosaicism, caused by...
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. 309β319) study the dynamics of embryo and...