Cells, Genes & Molecules
Polyembryony in non-apomictic citrus genotypes
Cases of polyembryony have been reported in non-apomictic genotypes as a consequence of 2x × 4x hybridizations and in vitro culture of isolated nucelli. Aleza et
Cells, Genes & Molecules
Gene dispersal in wild carrot populations
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.
Growth & Development
Oxygen transport via aerenchyma in soybean
When in flooded soil, soybean, Glycine max, produces aerenchyma and hypertrophic stem lenticels. Shimamura et al. (pp. 277–284) investigate the oxygen dynamics in these tissues
Cells, Genes & Molecules
Factors leading to hybrid lethality in Nicotiana
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
Growth & Development
Flower unisexuality in dioecious date palm
Dioecy has evolved independently several times during the evolution of flowering plants, but knowledge of the mechanisms involved is poor. Phoenix dactylifera is a dioecious species
Growth & Development
Genetic structuring in a large population of Arabidopsis
The perennial Arabidopsis lyrata is able to propagate both sexually and asexually, and this is expected to influence spatial genetic structure in the species. A fine-
Cells, Genes & Molecules
Hourglass cell development in soybean seed coat
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
Growth & Development
Spring temperatures affect season-long growth in grapevine
Plant growth is commonly understood to be determined by current temperature. Using a free-air cooling and heating system in the field, Keller and Tarara (pp.
Taxonomy & Evolution
Unification of Pennisetum, Cenchrus and Odontelytrum
Unification of Pennisetum, Cenchrus and Odontelytrum Based on a plastid, morphological and nuclear phylogeny, Chemisquy et al. (pp. 107–130) show that the genera Pennisetum, Cenchrus
Growth & Development
Spikelet seed position-dependent effects on life history
The cold desert annual grass Eremopyrum distans exhibits position-dependent effects of seeds in the spikelet. Wang et al. (pp. 95–105) find that seeds from
Growth & Development
Phylogeny and diversification of Myrtaceae
Fleshy fruits have evolved independently several times amongst Myrtaceae. Using a family-wide phylogeny, Biffin et al. (pp. 79–93) find that the parallel evolution of
Growth & Development
Regulation of tillering in sorghum: genotypic effects
Tillering is generally recognized as one of the most plastic traits affecting accumulation of biomass and ultimately grain yield in many field crops. Kim et al.