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WASHINGTON Gabriel Brazil Jersey , Sept. 19 (Xinhua) -- Deleting a common gene in a breed of butterflies can broadly change their wing patterns, according to a study published recently in the U.S. scientific magazine Proceedings of the National Academy of Sciences.


Arnaud Martin, an evolutionary geneticist at George Washington University and one of the authors of the study, said they used butterfly wing patterns as a proxy to understand fundamental rules about the function of genes.


Butterfly wings vary in color and shape and have different functions. Some butterflies have brightly colored wings to warn predators that they are poisonous. Some have dull camouflage wings, enabling them to pass off as leaves or barks.


The scientists chose butterfly wings for genetic tests for two reasons. First Filipe Luis Brazil Jersey , butterflies and moths have nearly 200,000 species, providing an adequate research source. Second, genetic changes can be discerned in wing patterns.


Martin and his colleagues used CRISPR, a bacterial system that has been likened to cellular cut-and-paste Fernandinho Brazil Jersey , to delete a gene called WntA in a broad breed of butterflies, The Washington Post reported Tuesday.


The small modification led to big changes. For example, in Heliconius butterflies, a species with dramatic colors, a large red spill appeared on the wings of the mutant ones.


Other noted changes included color splotches and different tints along the edge of the wings.


"It's extraordinary that it works so broadly Fagner Brazil Jersey ," said Owen McMillan, a staff scientist at the Smithsonian Tropical Research Institute and a co-author of the study.


The researchers knew WntA is important for wing patterns. However, they were surprised that its removal could lead to changes in so many different forms.


The study highlights the flexibility of the evolution regulation. Carolina Concha, a biogenomics researcher at the Smithsonian and another author of the study, called it "extraordinary".


Premier Li hopes for Singapore support in high-speed railway


World leaders attend general debate of UN General Assembly


7.1-magnitude quake kills at least 47 in central Mexico


China's C919 jumbo jet receives new orders


China to build cross-provincial national park for giant panda


Aerial view of paddy fields in SW China's Guizhou


Special snacks displayed during 14th China-ASEAN Expo


Scenery of paddy fields in Baicheng Fabinho Brazil Jersey , NE China's Jilin


CAIRO, Sept. 13 (Xinhua) -- Egyptian Interior Ministry said Wednesday that a wanted terrorist was killed in a fire exchange with police forces in the country's Mediterranean city of Alexandria.


In a statement, the ministry said the terrorist was a prime suspect in an anti-police terror attack in July that left a number of policemen dead near the capital Cairo.


Security forces attempted to arrest the suspect after spotting his location, but he opened fire at the police force as they approached his hideout, according to the statement.


On July 14 Elias Brazil Jersey , a group of militants opened fire against a police vehicle in Badrashin city, killing five policemen in the vehicle.


At least five security men were killed on the same day when militants opened fire randomly at a checkpoint in Egyptian province of Giza, near Cairo.


Egypt has been fighting against a wave of terror activities that killed hundreds of policemen and soldiers since the military toppled former Islamist president Mohamed Morsi in July 2013 in response to mass protests against his one-year rule and his currently outlawed Muslim Brotherhood group.


Terror attacks in Egypt used to focus on police and military men in North Sinai before spreading nationwide and targeting the Coptic minority as well, with most of them claimed by a Sinai-based group loyal to the regional Islamic State (IS) militant group.


The Egyptian military and police have killed hundreds of militants and arrested a similar number of suspects as part of the country's anti-terror war.


China, Brunei to boost ties


China-ASEAN Expo joined by exhibitors from countries along Belt and Road


Fire drill held in S China's Guangxi


Aerial view of villages in N China's Shanxi


China Ederson Brazil Jersey , Pakistan air forces hold joint training exercises


Pic story: Chinese grape and wine expert


Farmers busy with farm work around Bailu across China


Rural children take free lunch in SW China's Guizhou


BAKU, Feb. 21 (Xinhua) -- The Central Bank of Azerbaijan (CBA) on Saturday devalued the country's currency Manat against the U.S. dollar by 33.5 percent.


HONG KONG, Dec. 5 (Xinhua) -- Asia needs to rethink traditional approaches to growth, employment and sustainability, said the founding chairman of the Fung Global Institute on Thursday. ' Speaking at the forum of 2013 Asia-Global Dialogue Douglas Santos Brazil Jersey , Victor Fung said that given the combined impact of rebalancing, changing demographics, urbanization and environmental stresses, "we agree then that Asia needs to rethink traditional approaches to growth, employment and sustainability."


"Now we are exploring the crucial question of what's next for jobs Douglas Costa Brazil Jersey , opportunities and growth," the chairman of the economic think-tank based in Hong Kong said.


The two-day dialogue with participation by 400 leaders from business, government, academia around the world is held by Fung Global Institute. The forum will focus on discussion on trends transforming the global economy.


"We attempt to bring Asian perspectives to bear on global issues ever mindful that there is no single perspective in a region as diverse as Asia," said Fung. "Equally Diego Souza Brazil Jersey , Asia benefits greatly from having access to global perspectives, such as those represented by distinguished overseas speakers and participants at this dialogue."


In addition to the plenary sessions, multi-track panel discussions will take place on both days on four main areas: global val. Wholesale Soccer Jerseys Cheap NHL Jerseys Free Shipping Cheap NBA Jerseys Free Shipping Cheap MLB Shirts Free Shipping Cheap Soccer Shirts Free Shipping Cheap NFL Jerseys Free Shipping Cheap NFL Shirts China Cheap NBA Shirts China Cheap NHL Hoodies China Cheap NCAA Shirts Online
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