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Plants

Convergent evolution: Sleeping behavior in plants evolved independently multiple times

At ScienceDaily: "It is now clear that sleeping behavior has evolved independently in various plant groups and at different times in the course of Earth's history, so it must have some ecological benefits to the parent plant," [Stephen] McLoughlin continued. Read More ›

Domesticated Rice: the Power of Artificial Selection.

I suspect that almost every week there’s at least one article published somewhere that undermines Darwinian theory. Now using the term, ‘Darwinian theory’, might ruffle some people’s feathers. Yet, without Darwinian theory, neo-Darwinism makes no sense; it lacks any intellectual foundation. And, so, here we are inching towards the 200th anniversary of Origin of Species and 21st-Century evolutionary biologists remain saddled with 19th-Century thinking. With that said, this “week’s” article comes from Phys.Org and it offers a newer understanding of rice domestication. We find out that the results of an international collaboration “suggest that the emergence of cultivated rice from wild rice plants is the result of three gene mutations that make the seeds (i.e. the grains of rice) fall Read More ›

Fun: A giant undersea meadow turned out to be a single organism – the world’s largest

At Futurism: "According to The Guardian, this single Posidonia australis plant, more commonly known as ribbon weed, spans an astonishing 77 square miles of undersea land off the coast of western Australia's Shark Bay. For perspective, that's three times the size of Manhattan. Move over, trees! There's a new — well, ~4,500 year old — giant in town." Read More ›

Darwin wrote a book about orchids — and it was better received than Origin of Species

Shedinger: Unlike with the Origin, the reviews were overwhelmingly positive. Reviewers were extremely impressed with Darwin’s detailed documentation of the variety of contrivances in orchids. But much to Darwin’s dismay, they did not see this as evidence of natural selection. Read More ›

Richard Buggs’s talk on the abominable mystery of flowers now available

Intro: Charles Darwin was convinced that the evolution of complexity must proceed by tiny steps. Only tiny steps could be accumulated by natural selection. The process had to go slowly for it to work. Billions of years were needed. But Darwin was aware that this theory had a problem: flowers. Read More ›

Evolutionary genomics with Richard Buggs: Why flowering plants are a mystery

Talk intro: Charles Darwin was convinced that the evolution of complexity must proceed by tiny steps. Only tiny steps could be accumulated by natural selection. The process had to go slowly for it to work. Billions of years were needed. But Darwin was aware that this theory had a problem: flowers. Read More ›

Epigenetics and plant psychology: They show “scents of alarm” ;)

Researchers: Prior studies have shown that when grown near mint plants, soybean and field mustard (Brassica rapa) plants display heightened defense properties against herbivore pests by activating defense genes in their leaves, as a result of "eavesdropping" on mint volatiles. Put simply, if mint leaves get damaged after a herbivore attack, the plants in their immediate vicinity respond by activating their anti-herbivore defense systems in response to the chemical signals released by the damaged mint plant. Read More ›

Researchers: Bacteria provided plants with genes to colonize land

Again, we ask, if so, in a world where horizontal gene transfer is this extensive and significant, what becomes of all the carefully structured Darwinian tales of the gradual development of selective advantage? Aren’t they just evolutionary fiction, a form of historical fiction? Read More ›