Origin in Biological News

August 2009 Geology and GSA Today media highlights

... 691-694. Planetary scientists have debated the origin of the great canyons of Valles Marineris on Mars ... of these dust particles. Li et al. constrain the origin of dust-storm particles by the isotopic tracers ... persisted tens of millions of years beyond the origin of animals -- much later than previously reported ...

7th annual [BC]2 Basel Computational Biology Conference 'Molecular Evolution' June 18-19, 2009

... of the publication of his major work, "On the origin of the Species". Invited speakers include ... a reconsideration of the dogma of a polyphyletic origin of the various eye types in all the animal phyla. ... and the role of complex mutations in the origin of new functions. Eugene V. Koonin will close ...

University of Florida study provides insight into evolution of first flowers

... Fla. --- Charles Darwin described the sudden origin of flowering plants about 130 million years ago ... at UF's Florida Museum of Natural History. "The origin of the flower is the key to the origin of the angiosperms (flowering plants)." The ...

UF scientist tapped by Howard Hughes Medical Institute to pursue 'best ideas'

... snake evolution and the role of Hox genes in the origin of jaws findings that were published in Nature ... Cohn's group has discovered the evolutionary origin of the genetic program for fin development, shown ... The group has also published widely on the origin of skeletal development. Along the way, Cohn's ...

Cause of mussel poisoning identified

... The origin of the neurotoxin azaspiracid has finally been ... been quite well investigated, the question of the origin remained inconclusive until now despite intensive ... regarded as harmless) has been blamed as the origin of the toxins since 2003. Researchers from the ...

Research links evolution of fins and limbs with that of gills

... of Chicago. "We have pushed back the evolutionary origin of the developmental genetic program that ... (arms, legs and fins) has a deep evolutionary origin that actually predates the origin of paired appendages themselves. "These ...

Darwin's seminal impact on biology, anthropology, philosophy and psychology

... the 150 anniversary of Charles Darwin's " On the origin of the Species " a seminal book that permeated ... says Lapointe. According to Lapointe, On the origin of the Species must be continually reinterpreted ... which wasn't in the first edition of On the origin of the Species , removes all clear intention of ...

January-February GSA Bulletin media highlights

... Continental-scale salt tectonics on Mars and the origin of Valles Marineris and associated outflow ... interpretation for regional deformation and the origin of Valles Marineris and associated outflow ... Postorogenic shoshonitic rocks and their origin by melting underplated basalts: The Miocene of ...

Genetic based human diseases are an ancient evolutionary legacy

... of these genes were already in existence at the origin of the first cells. The search for further genes, ... Zagreb (Croatia). The method allows the point of origin for any existing gene to be determined by tracing ... vast majority of these genes trace back to the origin of the first cell. Other large groups emerged ...

Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna

... and we used these natural tags to determine the origin of adolescent and adult bluefin tuna from several ... that breeders often return to their place of origin but this study is the first to document natal ... and Mediterranean Sea returned to their place of origin to spawn," noted Rooker. This new information ...

Egalitarian revolution in the Pleistocene?

... rapidly through intense power struggle and their origin had dramatic implications for humanity. In many ... in the group's social organization during the origin of our own "uniquely unique" species? Some ... alliance should create conditions promoting the origin of conscience, moralistic aggression, altruism, ...

Research pushes back history of crop development 10,000 years

... Until recently researchers say the story of the origin of agriculture was one of a relatively sudden ... that in the past that have suggested a single origin from a narrow geographical range, supporting the ... model also more supportive of a longer complex origin of plants through cross breeding of a number of ...

September Geology and GSA Today media highlights

... differentiation. This study concludes that the origin of rise-parallel changes in magmatic ... the damage and loss of the earthquake. origin of microbiological zoning in groundwater flows ... of microbe, and scientists have been studying the origin of this phenomenon. Two working explanations, one ...

June GEOSPHERE media highlights

... A plume-triggered delamination origin for the Columbia River Basalt Group Victor E. ... of basaltic lava is to attribute their origin to the rapid melting of large plumes derived from ... advocates, many of whom prefer to attach the origin of these provinces to a model of delamination of ...

March GEOLOGY and GSA TODAY media highlights

... margins is generally thought to be too shallow in origin to be a host for diamond. Micro-diamonds found in ... previously realized. This may help explain the origin of some known anomalous diamond deposits. Studies ... rapid. Upheaval Dome, Utah, USA: Impact origin confirmed Elmar Buchner, Institut fr ...

ASU researcher may have discovered key to life before its origin on Earth

... some of the possible abiotic precursors to the origin of life on Earth have been shown to carry ... in many of its queries those that surround the origin of life, said Pizzarello. Years ago ... This study may provide an important clue to the origin of molecular asymmetry, added Brown associate ...

Evolving complexity out of 'junk DNA'

... as the liver, pancreas and brain. Therefore, the origin of vertebrates and the origin of these genes is no coincidence. Dr Kevin ... points the way to understanding the evolutionary origin of our own lineage, but it also helps us to ...

Dartmouth researchers find the root of the evolutionary emergence of vertebrates

... which regulate gene expression, are behind the origin of early vertebrates. This study not only points the way to understanding the evolutionary origin of our own lineage, but it also helps us to ... as the liver, pancreas and brain. Therefore, the origin of vertebrates and ...

It is important to demonstrate the influence of the microenvironment in the process of metastasis

... tool for the study and identification of the origin of the factors regulating this expression, as ... On the other, it was aimed at identifying the origin of the factors regulating the expression of those ... a study of the genes was carried out and the origin of the factors regulating this expression ...

December GEOLOGY and GSA TODAY media highlights

... in geoscience research. Subduction origin on early Earth: A hypothesis Vicki L. Hansen, ... the equator) has been an important site for human origin research since its discovery in the 1930s. The ... the Crow Creek Member is consistent with an origin involving gravitational settling rather than ...

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

... Shubin will speak at the symposium about the origin of tetrapod limbs. A tetrapod is any vertebrate ... tracking the evolution of the HIV virus; and the origin of man. When: Saturday, November 3, 9:00 AM ... 12:10 AM NEIL SHUBIN, The Field Museum: The origin of Tetrapod Limbs 12:10 2:00 PM Lunch Break ...

Genetic contributions to human brain morphology and intelligence

... was unresolved whether there is a common genetic origin of focal gray matter and white matter structures ... intelligence were found to share a common genetic origin with an anatomical neural network involving the ... were used. To explore the common genetic origin of focal gray matter and white matter areas with ...

Which came first, the chicken genome or the egg genome?

... that we have a global view of the evolutionary origin of some of the most complicated regions of the ... The researchers tracked down the ancestral origin of more than two thirds of these long DNA ... worked to systematically pinpoint the ancestral origin of each human segmental duplication and organized ...

St. Jude settles century-old debate on origin of mammalian network of lymphatic vessels

... Hospital settled a century-old debate on the origin of the mammalian lymphatic vasculaturethe network ... vessels. The St. Jude team studied the origin of the mammalian lymphatic vasculature using a ... researcher Florence Sabin, who proposed that the origin of the mammalian lymphatic vasculature is the ...

Venous origin of the mammalian lymphatic vasculature

... evidence to resolve a century-old debate over the origin of the mammalian lymphatic vasculature. ... sacs. The debate has surrounded the cellular origin of the lymphatic vasculature: Does it arise from ... is venous-derived. Identifying the origin of any specific cell type is critical to ...

Georgia Tech/Emory Center to study origin of life

... focused on the chemistry that may have led to the origin of life. The center also includes the ... college and high school students," said Hud. "The origin of life is one of the most intriguing questions ... issues between science and religion and the origin of life,"said Lynn. "It's a big puzzle," said ...

UC San Diego engineer provides insights to decades-old DNA squabble

... in this field. This new finding could unlock the mystery behind the origin of many diseases such as cancer. The details of this breakthrough ... folds and unfolds to regulate gene activities, as well as understand the origin of genetic diseases like cancer. For example, he said, lots of diseases ...

Leicester research paves way for first use in Europe of an insect to fight invasive plant

... his nursery in Leiden in the 1850s. The molecular tools to discover the origin of Japanese Knotweed were in place and the trip to Japan already arranged. ... After an extensive search, our molecular research finally identified the origin of the European clone and collection of potential control agents was ...

Maternal, paternal genes' tug-of-war may last well into childhood

... only during fetal development: In the womb, some genes of paternal origin have been shown to promote increased demands on mothers, leading to fetal overgrowth, while genes of maternal origin tend to have the opposite effect. This new work suggests maternal and ...

Life on Earth came from other planets

... has miserably failed and up until now every theory proposed to explain the origin of life has been found wanting. The early Earth lacked all the essential ... chondrites), most impacted by supernova and predating the origin of our solar system. Skeptics dismiss discoveries of microfossils by ...

American Chemical Society's Weekly PressPac -- June 3, 2009

... the N-methyldecahydroquinolines. The authors then speculated on its origin in the frogs' diet, most likely ants. The report is scheduled for the June ... them in their skin. However, Garraffo's group was not certain about the origin of the newly discovered N-methyldecahydroquinolines, which could also be ...

Research team finds important role for junk DNA

... the study. Landweber and other members of her team are researching the origin and evolution of genes and genome rearrangement, with particular focus on ... during development. In her lab, Landweber studies the evolutionary origin of novel genetic systems such as Oxytricha's. By combining molecular, ...

Evolutionary origin of bacterial chromosomes revealed

... Blacksburg, Va. Researchers have unveiled the evolutionary origin of the different chromosomal architectures found in three species of ... the sequences with those of different bacteria to shed light on the origin of the different chromosomal arrangements. Most bacteria have only one ...

NASA researchers find clues to a secret of life

... brought to the early Earth by asteroids and comets contributed to the origin of only left-handed based protein life on Earth," said Glavin. All ... life in our solar system more difficult, while also making its origin a bit more likely, according to the team. "If we find life anywhere else ...

Tracking tigers in 3-D

... in an issue of the journal Biology Letters , may also help identify the origin of tigers from confiscated skins. The new software, developed by ... photos. Researches were also able to use the software to identify the origin of confiscated tiger skins based on solely on photos. Development of the ...

World's top minds to celebrate 'the birth and life of beginnings'

... '09" will extend well beyond Darwin and his seminal 1859 work "On the origin of Species," however, to take a broader look at various advances in ... the Marcus Roberts Quintet. In a two-hour concert and lecture titled "The origin & Evolution of Jazz: A Tribute to American's Own Musical Art Form," ...

Study on origin of mutation that causes fatal familiar insomnia

... thesis at the University of the Basque Country (UPV/EHU) has studied the origin of the mutation that causes Fatal Familiar Insomnia (FFI). In the ... and institutions referred to are detailed at the end of the paper). origin of the mutation In 1996, following on from the outbreak of the ...

Discovery of giant roaming deep sea protist provides new perspective on animal evolution

... single-celled organisms could lead to new insights into the evolutionary origin of animals, says biologist Mikhail "Misha" Matz from The University of ... record. There are likely other mechanisms that explain the burst-like origin of diverse multicellular life forms. DNA analysis confirmed that the ...

Complex systems and Mars missions help understand how life began

... "We are in the same position as the physicists trying to understand the origin of the universe," says Von Kiedrowski. "We will not know exactly how life ... Liquid water is crucial for life. But, says Zegers, understanding the origin of life from this evidence is a bit like trying to piece together western ...

Very cold ice films in laboratory reveal mysteries of universe

... yielding clues to fundamental questions including possibly the origin of life. Researchers have been surprised by some of the results, not least ... smokers' on the sea floor, which is currently favoured as a possible origin of life, but also in the chemistry of sea ice." This is an intriguing ...