Cereal grasses are of course economically important, but they also have large repetitive genomes with large pericentromeric regions that have been difficult to map and sequence. Barley (Hordeum vulgare L.) is used for human and animal food and fermented to produce beer and whisky. A barley sequence assembly…

Chromosomal inversions are chromosomal rearrangements that can span several Mb and have been described in several organisms from Drosophila to maize. Inversions suppress recombination and can favor local adaptation and speciation if they capture favorable alleles. It’s not clear though if favorable…

We all learned the series milli-, micro-, nano-, pico-,  femto-, but I didn’t learn atto- (10-18), as it’s rarely used in biology, representing such a tiny number (FYI, atto- is followed by zepto- and yocto-).  Li et al provide a method for quantifying gibberellin (GA) hormones at “near attomole”…

A pair of Breakthrough Technology papers in Plant Physiology discusses new tools to identify hydroxyproline-rich glycoproteins and insights into their evolution. Hydroxyproline-rich glycoproteins (HRGPs) are repeat-rich cell wall proteins that have been described as falling into three large families:…

Environmental changes affect the biodiversity (variety of life forms) and productivity (conversion of sunlight energy and carbon into plant biomass) of ecological communities. The collaborative Nutrient Network (NutNet) was created 10 years ago with the goal of synthesizing studies of ecosystem environmental…

Phytochromes were first characterized in classic studies of plants, in which their contributions to seed germination and initiation of flowering were described. Subsequently, phytochromes were identified in cyanobacteria and in non-photosynthetic organisms including fungi. Rockwell and Lagarias review…

The ancestors of land plants were aquatic. Myriad changes accompanied the transition from aquatic to terrestrial life, including changes necessitated by the difference in light intensity and quality. Bryophytes, the earliest diverging land plants, have some characteristics that reveal how plants transitioned…

Nature has published an Outlook feature on the topic of Food Security with the following overview articles, all useful for teaching: Food security,   Nutrition: A world of insecurity,   Agrobiodiversity: The living library,   Bioengineering: Solar upgrade,  Egypt: Space to grow,  Perspective:…