Evolutionary Biology News
September 2, 2015

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More Evolutionary Biology News
September 2, 2015

Batting Practice in the Genome

Aug. 25, 2015 — In the biochemical game of genetics, it was thought that the proteins controlling gene regulation in animals were either spectators or players. But scientists have now found that spectator proteins ... read more

Adaptive Mutation Mechanism May Explain Some Forms of Antibiotic Resistance

Aug. 25, 2015 — Evolutionary theory says mutations are blind and occur randomly. But in the phenomenon of adaptive mutation, cells can peek under the blindfold, increasing their mutation rate in response to stress. ... read more

Aug. 25, 2015 — Barley, a widely grown cereal grain commonly used to make beer and other alcoholic beverages, possesses a large and highly repetitive genome that is difficult to fully sequence. Now scientists have ... read more

Aug. 25, 2015 — Visual mimicry lets the helmeted woodpecker (Dryocopus galeatus) live on the threatened Atlantic forest turf of two bigger birds -- the lineated Dryocopus lineatus and robust (Campephilus robustus) ... read more

Aug. 25, 2015 — Several Palaeozoic mass extinction events during the Ordovician and Silurian periods (ca. 485 to 420 to million years ago) shaped the evolution of life on our planet. Although some of these ... read more

Aug. 20, 2015 — The fact that the greatest diversity of large mammals is found in Africa reflects past human activities -- and not climatic or other environmental constraints. This is determined in a new study, ... read more

Aug. 20, 2015 — A single molecular event in our cells could hold the key to how we evolved to become the smartest animal on the planet, scientists report. They have uncovered how a small change in a protein called ... read more

Aug. 20, 2015 — Disease-causing viruses engage their hosts in ongoing arms races: positive selection for antiviral genes increases host fitness and survival, and viruses in turn select for mutations that counteract ... read more

Aug. 20, 2015 — Bacteria do not cease to amaze us with their survival strategies. A research has now discovered how bacteria enter a sleep mode using a so-called FIC toxin. In a new article, the scientists describe ... read more

Aug. 19, 2015 — A team of international researchers has discovered a fossil monkey specimen representing the earliest baboon ever found. Dating back more than two million years ago, the partial skull was found in ... read more

Genome-Wide Annotation of Primary miRNAs Reveals Novel Mechanisms

Aug. 19, 2015 — MicroRNAs are short noncoding RNAs that play critical roles in regulating gene expression in normal physiology and disease. Despite having tightly controlled expression levels, little is known about ... read more

Aug. 19, 2015 — Animal sex signals, communications between partners indicating health, the capacity to produce healthy offspring and more, were thought to be beneficial and passed down from generation to generation. ... read more

Aug. 19, 2015 — Plants and animals, including humans, are not autonomous individuals but are holobionts: biomolecular networks that consist of visible hosts plus millions of invisible microbes, recent ... read more

Aug. 19, 2015 — Female fish in the Bahamas have developed ways of showing males that 'No means no.' The study shows that females have evolved differently shaped genitalia to deter unwanted advances from ... read more

Aug. 19, 2015 — An international research team has some good news for the struggling honeybee, and the millions of people who depend on them to pollinate crops and other plants. These valuable pollinators have faced ... read more

Aug. 18, 2015 — New species evolve whenever a lineage splits off into several. Because of this, the kinship between species is often described in terms of a 'tree of life,' where every branch constitutes a ... read more

Aug. 18, 2015 — A cooling, drying climate over the last 40 million years turned North America from a warm and wooded place into the drier, open plains we know today. A new study shows how dogs evolved in response to ... read more

Aug. 18, 2015 — A study of catsharks reveals how alterations in the expression and function of certain genes in limb buds underlie the evolution of fish fins to limbs. The findings give new insight into how fish ... read more

Aug. 17, 2015 — Paleobotanists in Europe have identified a 125 million- to 130 million-year-old freshwater plant as one of earliest flowering plants on ... read more

Aug. 14, 2015 — Frolicking, wrestling, climbing, jumping -- Playing is a lot of fun and promotes development but is also very strenuous. Behavioral biologists therefore suspect that animals only play intensively if ... read more

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