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ALGAE ANCESTORS. "Land plants, also called embryophytes, descended from freshwater algae about 480 Ma. Most of the major phylogenetic groups of land plants now have at least one high-quality draft or reference genome sequence." http://rstb.royalsocietypublishing.org/content/369/1648/20130355.short View in LinkedIn

EARLY PLANT SEEDS. "However, do we generally appreciate the evolution of this adaptation, much less the diverse effects it has had on terrestrial ecosystems and, indeed, our own culture? No. We take it for granted, even though land plants evolved the seed millions of years before the first amniote is recorded in the fossil record." https://academic.oup.com/bioscience/article/65/6/626/304981/Seeds-and-Fruits-Underwriting-the-Diversity-of View in LinkedIn

FRAGMENT FROM NATURE explores for this and next weekend the ancient transition of plants from the water to dry land, and then those that returned to salt water. Those plants that re-adapted to salt water are the focus of this fragment. This is the sister posting to match the one about the return of the whales to the sea a couple of weeks ago. Like the whales, plants returning to the sea had to reinvent solutions to metabolic problems including salt toxicity, low CO2 diffusion rates, and low light levels. View in LinkedIn