Chen et al. identified a novel male-sterile Zea mays mutant, named ipe1.  Mutant pollen grains show defective development of the tapetum and pollen exine (outer surface), causing microspore abortion.  In addition, ipe1 anthers are smooth instead of reticulate, suggesting defects in anther cuticle formation. …

Which arose first during evolution- a metabolite molecule or a transporter that could move it across a membrane?  Jørgensen et al. studied transporters for glucosinolate defense molecules in Brassicales species.  Glucosinolates are derived from the broad class of cyanogenic glucosides, and glucosinolates…

Histones are protein complexes around which genomic DNA is wrapped; post-translational modifications to histone proteins and alterations of histone protein composition affect transcription. H2A.Z is a widely conserved variant form of histone H2A that has been implicated in various forms of transcriptional…

In 2016, Kew Gardens released a report “The State of the World’s Plants”, which includes estimates of the total number of plant species on Earth and the percentage of those facing extinction.  Pimm and Raven delve into those numbers and offer the opinion that many species will be lost before they…

High-throughput screening greatly extends the number of individuals that can be screened, so is particularly crucial for genetic or chemical genetic approaches.  Burrell et al. report on a miniaturized robotic phenotyping platform, “Microphenotron” designed for chemical genetic screening. Seeds…

Brassicaceae is one of the largest angiosperm families and provides many opportunities for studies of evolution. Of course, its most famous species, Arabidopsis thaliana is an important resource, but Brassicaceae also includes the very interesting Brassica crops (cabbage, turnip) that demonstrate the…

Most angiosperms are hermaphrodites and produce flowers that have both male (stamens / sperm) and female (carpels / egg) parts. Pannell reviews the developmental and genetic programs that lead to these “perfect” flowers, as well as those that underlie reproductive structure development in dioecious…

The range of responses an individual could display is a contribution of the inheritance of gene variants that determine such responses and the environments experienced by the individual itself and prior generations (nongenetic inheritance). In this review, we discuss recent empirical data to help us…