Phylogeny in Biological News

Revealing the evolutionary history of threatened sea turtles

... some to be a separate speciesfalls within the green turtle species. The branches of this evolutionary tree can be calibrated with time using the new phylogeny and DNA data: Even though the ancestor of all sea turtles arose over 100 million years ago, the separation between the flatback and green turtles ...

Scientists reveal the lifestyle evolution of wild marine bacteria

... (whether they live on small or large particles and thrive in the cool or warm months, etc.). They then combined information about habitat with phylogeny (the evolutionary history of groups of genes), and apportioned the original strains into 25 distinct populations and mapped their habitats back to a ...

Darwin Symposium at Field Museum offers broad overview of his science and its impact

... California-Santa Cruz: Three Philosophical Dimensions of Darwinism 10:40 11:10 AM ANDREW SMITH, The Natural History Museum, London: Fossils and phylogeny 11:10 11:40 AM PETER CRANE, University of Chicago: The Evolution of Carnivores from Plants 11:40 12:10 AM NEIL SHUBIN, The Field Museum: The ...

Hantavirus found in African wood mouse

... said ter Meulen. "According to the co-evolution hypothesis, the phylogeny (evolutionary history) of viruses that are restricted to a host species mirrors the phylogeny of their respective hosts," he explained. "So the discovery of an African ...

Two studies on bee evolution reveal surprises

... examined early bees' structures in combination with bee DNA, producing the largest molecular and morphological study to date on bee family-level phylogeny -- the evolutionary development and diversification of a species. Their goal was to examine the early evolutionary pattern of bees and how their ...

Sociality of sweat bees evolved simultaneously during climate change

... The DNA sequencing sheds light on how divergent the various species are from each other, and the fossils allow the researchers to represent the phylogeny in terms of a timeline in millions of years. In 2002 and 2004, Danforth showed that the social evolution of the various species of halictid bees ...

The evolution of food plants: Genetic control of grass flower architecture

... are a premier model system for evolution of development studies in higher plants: there is tremendous diversity in inflorescence morphology, the phylogeny is well understood and many species are genetically transformable so hypotheses can be tested. Maize in particular is an excellent model system for ...

Ancient anthropoid origins discovered in Africa

... reversal from a diurnal ancestor, but that conclusion is based solely on the probable pattern of relationships. If down the road we find out that our phylogeny was wrong, Biretia could end up being very significant for our understanding of the origin of anthropoid activity patterns." According to Simons, ...

Cricket's finicky mating behavior boosts biodiversity

... to establish the evolutionary tree, or phylogeny, of the Laupala. They based their estimates of the cricket's rate of speciation on the Laupala's phylogeny and on the age of the islands in the Hawaiian archipelago. The youngest island, Hawaii, was formed less than 500,000 years ago. ...

Molecular biology fills gaps in knowledge of bat evolution

... the journal Science that uses molecular biology and the fossil data to fill in many of the gaps. Springer coauthors the paper, titled A Molecular phylogeny for Bats Illuminates Biogeography and the Fossil Record, with William Murphy, Stephen J. O'Brien and Emma. C. Teeling of the National Cancer ...