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Latest Model organism Stories

Sea Anemone genetics
2014-03-18 13:58:44

Lee Rannals for redOrbit.com - Your Universe Online Researchers lead by evolutionary and developmental biologist Ulrich Technau at the University of Vienna say that a sea anemone has a genomic landscape that is half animal, half plant. Developmental biologists found that the genetic landscape of sea anemones features complex regulatory elements similar to that of fruit flies or other animal model systems. However, they also discovered that sea anemones are more similar to plants rather...

Top Researchers Brought Together To Sequence Genomes Of Invertebrates
2013-12-13 13:45:51

Nova Southeastern University NSU professor organized and hosted first-ever workshop with experts from across the globe Pop Quiz: what creatures make up more than 70% of the approximately 1.9 million described species on earth and have long served as model organisms in many areas of biology? If you guessed invertebrates, you're right! To begin exploring this question, a new cooperative consortium called the Global Invertebrate Genomics Alliance (GIGA) was formed and held its inaugural...

2013-09-04 08:28:45

When the tiny roundworm C. elegans reaches middle age—at about 2 weeks old—it can't quite move like it did in the bloom of youth. But rather than imposing an exercise regimen to rebuild the worm's body-wall muscles, researchers can bring the wriggle back by stimulating the animal's neurons. And, they say, pharmaceuticals might have a similar effect in mammals. Scientists at the University of Michigan's Life Sciences Institute and Medical School have found that the loss of motor ability...

2013-08-26 10:53:38

In an era of widespread genetic sequencing, the ability to edit and alter an organism's DNA is a powerful way to explore the information within and how it guides biological function. A paper from the University of Wisconsin–Madison in the August issue of the journal GENETICS takes genome editing to a new level in fruit flies, demonstrating a remarkable level of fine control and, importantly, the transmission of those engineered genetic changes across generations. Both features are key...

Simple Moss Plants Outperform Us By Gene Number
2013-08-05 11:28:48

AlphaGalileo Foundation At the genetic level, mosses are more complex than humans: A group of German, Belgian and Japanese scientists, coordinated by Professor Ralf Reski from the University of Freiburg, Germany, published a new study where they describe 32,275 protein-encoding genes from the moss Physcomitrella patens. This is about 10,000 genes more than the human genome contains. Mosses are tiny plants with a simple body plan: They have no roots, no flowers and do not produce seeds....

Searching For Nematostella: Ancient Sea Creature
2013-05-02 10:15:46

Stowers Institute for Medical Research There's a new actor on the embryology stage: the starlet sea anemone Nematostella vectensis. Its career is being launched in part by Stowers Institute for Medical Research Associate Investigator Matt Gibson, Ph.D., who is giving it equal billing with what has been his laboratory's leading player, the fruit fly Drosophila melanogaster. Gibson's lab investigates the cellular and molecular mechanisms used by cells to assemble into layers or clusters...

2013-04-30 14:18:23

Research published in the May 2013 journal GENETICS may shed light on the root cause of some neurodegenerative diseases Scientists have identified a gene that keeps our nerve fibers from clogging up. Researchers in Ken Miller's laboratory at the Oklahoma Medical Research Foundation (OMRF) found that the unc-16 gene of the roundworm Caenorhabditis elegans encodes a gatekeeper that restricts flow of cellular organelles from the cell body to the axon, a long, narrow extension that neurons use...

Evolution Follows A Predictable Genetic Pattern Researchers Find
2012-10-26 10:20:03

Evolution, often perceived as a series of random changes, might in fact be driven by a simple and repeated genetic solution to an environmental pressure that a broad range of species happen to share, according to new research. Princeton University research published in the journal Science suggests that knowledge of a species' genes – and how certain external conditions affect the proteins encoded by those genes – could be used to determine a predictable evolutionary pattern...

2012-07-11 13:49:14

Listed below are the selected highlights for the July 2012 issue of the Genetics Society of America's journal, Genetics. The July issue is available online at www.genetics.org/content/current. Please credit Genetics, Vol. 191, JULY 2012, Copyright © 2012. ISSUE HIGHLIGHTS Increasing association mapping power and resolution in mouse genetic studies through the use of meta-analysis for structured populations, pp. 959-967 Nicholas A. Furlotte, Eun Yong Kang, Atila Van Nas, Charles R....

2012-05-16 16:00:35

Microscopes provide valuable insights in the structure and dynamics of cells, in particular when the latter remain in their natural environment. However, this is very difficult especially for higher organisms. Researchers of Karlsruhe Institute of Technology (KIT), the Max Planck Institute for Polymer Research, Mainz, and the American National Institutes of Health (NIH) have now developed a new method to visualize cell structures of an eighth of a micrometer in size in living fish larvae. It...


Latest Model organism Reference Libraries

Arbacia punctulata
2013-11-06 11:08:03

Arbacia punctulata is a species of Arbacia genus of purple-spined sea urchins. Its natural habitat is in the Western Atlantic Ocean. It can be found in shallow water from Massachusetts to Cuba and the Yucatan Peninsula, from Texas to Florida in the Gulf of Mexico, the coast from Panama to French Guiana and in the Lesser Antilles, normally on sandy, rocky, or shelly bottoms. It is omnivorous, consuming a wide variety of preys. It’s been shown that it is galactolipids, rather than...

Medaka, Oryzias latipes
2012-07-31 11:55:28

Medaka (Oryzias latipes), also known as the Japanese killifish, is a species of ricefish and the only member of the Oryziinae subfamily. It is native to Southeast Asia and is a common occupant of rice paddies in coastal Asia. It is amphidromous, meaning it moves between salt and freshwater at some point during life, and for this reason, is found in both ocean and river habitats. This is a small fish, reaching lengths of 0.75 to 1.55 inches. Due to its hardiness and pleasant coloration,...

72_d9bf429528baf03b239fde81507185e6
2011-04-14 15:10:21

Bacillus subtilis, also known as hay bacillus or grass bacillus, is a Gram-positive, catalase-positive bacterium commonly found in soil. It is rod-shaped and a member of the genus Bacillus. It also has the ability to form a tough, protective endospore, allowing the organism to tolerate extreme environmental conditions. B. subtilis has historically been classified as an obligate aerobe, though recent research has proven this to not be strictly correct. It is not a human pathogen although...

Medaka, Oryzias latipes
2009-06-18 17:26:54

The Medaka, also known as the Japanese killifish (Oryzias latipes) is part of the genus Oryzias (ricefish) - the only genus in the family Oryziinae. These natives of Southeast Asia are rather small measuring about 1-2 inches. The Medaka is also a native of rice paddies in coastal Asia. Because of the Medaka's enjoyable coloration and hardiness it is a popular aquarium fish. Medaka's coloration ranges from brown or yellow-gold in the wild, to white along with creamy yellow or orange. Since the...

39_ace37de56045e8be057061f572139540
2007-04-10 16:07:52

The Zebrafish (Danio rerio) is a tropical fish belonging to the minnow family (Cyprinidae). It is a popular aquarium fish, where it is frequently sold under the trade name Zebra danio, and is also an important model organism. Characteristics The zebrafish arose in the Ganges region in Eastern India and is also native to Pakistan, Bangladesh, Nepal and Myanmar. It commonly inhabits streams, canals, ditches, ponds and slow-moving to stagnant water bodies, including rice fields. The...

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Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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