Tag: "domesticated" at biology news

First analysis of chicken genome offers many new insights

...ittle genetic difference between Gallus gallus and domesticated chicken breeds, highlighting the genome's potential to aid agricultural scientists trying to improve the chicken as a nutritional resource and to limit the spread of avian flu viruses. Scientists found the chicken genome has about the same number...

Researchers compare chicken, human genomes

...proximately 310 million years. Chickens were first domesticated in Asia, perhaps as early as 8000 B.C. As might be expected, genomic researchers determined that chickens have an expanded gene family coding for a type of keratin protein used to produce scales, claws and feathers, while mammalian genomes possess m...

Chicken genome analysis will benefit human health and agriculture

...or at least 310 million years. Chickens were first domesticated in Asia, perhaps as early as 8000 B.C. The consortium was made up of more than 175 scientists from China, Denmark, France, Germany, Japan, Poland, Singapore, Spain, Sweden, Switzerland, the United Kingdom and the United States ...

Heterosis in populations in nature of a domesticated plant

... quantify evolutionary processes in populations of domesticated plants in traditional farming systems. In February's Ecology Letters, Pujol, David and McKey show that these systems offer unusual opportunities for studying microevolution. Cassava (Manihot esculenta) is clonally propagated, but Amerindian cassava f...

Domesticated pig's wild origin mapped

...llaborative project to map the wild origins of the domesticated pig. The findings show that the wild boar was domesticated several times in different parts of Europe and Asia. The study is being presented in today's issue o...

UF researcher: Ideas about fossil horses undergo evolution in thinking

...ted with shaping human history more than any other domesticated animal. However, it behooves us to be cautious when accepting other beliefs about the popular animals, he said. Children often learn in social studies classes how the Spaniards brought horses to the New World in the 1500s, eventually producing vast ...

Fungus-farming termites descend from an African rain forest Eve

...ansition to agriculture occurred in which termites domesticated a single lineage of fungi, represented today by th...y domesticating white-rot fungi. By offering those domesticated fungi a constant supply of growth substrate, and humid, highly buffered, rain forest like climatic c...

PNAS highlights for the week of May 16 - 20

...vides insight into the initial appearance of three domesticated plants in the country's Tehuacan Valley....

The evolutionary triumph of flower power

... incredible variety of shapes and colors we see in domesticated flowers today. McGuire suggests that nature's pret...ng so for more than 5,000 years. Ironically, many domesticated flowers have been so selected by humans that nature's pollinators the bugs and birds no longer fin...

Emerging diseases require a global solution

...diseases also. Tuberculosis--a disease afflicting domesticated cattle and humans--has now spread across continents, infecting wild bison in Canada, deer in Michigan, and Cape buffalo in South Africa. The costs of reacting to these problems, say Karesh and Cook, are staggering. The rash of livestock pathogens th...

Infectious disease expert warns of spread of Rocky Mountain spotted fever

...rizona region, but were introduced to the state as domesticated dogs that moved with their owners into the area. "This study shows that Rocky Mountain spotted fever can show up in unexpected places, and the study should put physicians on alert for the earliest signs and symptoms of the disease," says Dumler. "Ou...

WCS says avian flu prevention should focus on farms, markets

... with wild birds. Wildlife markets--where wild and domesticated species are kept in close proximity--are also hubs of transmission for avian flu and other pathogens that need to be better regulated. Wildlife and health experts also maintain that indiscriminate culling of wild migratory bird populations would be i...

Bird samples from Mongolia confirmed as H5N1 avian flu

...o need to monitor wildlife markets, where wild and domesticated species are kept in close proximity, and risk exposure to a wide range of pathogens. Wildlife and health experts, including the F.A.O., maintain that indiscriminate culling of wild migratory bird populations would be ineffective in preventing th...

Study in Royal Society journal on possiblity of human organ regeneration

...equisite to the rise of civilization. Cattle were domesticated from aurochsen about 10.000 years ago and, as for most other domestic animal species, domestication was probably limited to a few regions including the Near East and India. From these regions, domestic cattle are thought to have spread by migrating h...

Finding rewrites the evolutionary history of the origin of potatoes

...rchaeological evidence suggests that potatoes were domesticated from wild relatives by indigenous agriculturalists more than 7,000 years ago, says Spooner. Today, the potato - an international dietary staple - is a major crop in both the United States and in Wisconsin, which is fourth in the nation for potato pr...

Wild birds help to create human flu vaccine

...so need to monitor wildlife markets where wild and domesticated species are kept in close proximity, and risk exposure to a wide range of pathogens. The White House's recently released "National Strategy for Pandemic Influenza" acknowledges the need to "expand and enhance mechanisms for screening and monitoring ...

Seal rookeries could provide a reliable food source for endangered California condors, study finds

...ule deer, feral pigs, whales, seals, sea lions and domesticated cattle. "The California Department of Transportation even agreed to go around and snip off hair from dead deer killed on the highway," Chamberlain says. "Other people went around picking up samples from dead seals on beaches. We ended up getting an i...

Central Americans save plant diversity through local cultivations

...lection process. "Many of the crops are so highly domesticated that they don't have much genetic variation, and w... kind of looking at them after they've been highly domesticated and produced these elite varieties," Schaal explained. In a paper published in the Proceedings of t...

Dog genome sequence and analysis published in Nature

...gined." Differences between dog breeds Dogs were domesticated from gray wolves as long as 100,000 years ago, but selective breeding over the past few centuries has made modern dog breeds a testament to biological diversity. Obvious examples include the contrasting body sizes of 6-pound Chihuahuas and 120-pound ...

Researchers publish dog genome sequence

... human disease and the basis of evolution." Humans domesticated the dog, Canis familiaris, from gray wolves as long as 100,000 years ago. As a result of selective breeding over the past few centuries, modern dog breeds present a model of diversity. From 6-pound Chihuahuas to 120-pound Great Danes, from high-energ...

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(Date:10/29/2014)... of its kind to date, researchers have used DNA ... risk for autism. Joseph Buxbaum, Ph.D., Icahn School of ... Ph.D., Broad Institute of Harvard and MIT, and their ... children, parents and unrelated people. They identified changes in ... risk for autism spectrum disorder (ASD) – a jump ...
(Date:10/29/2014)... and environmental, have been blamed for increasing the ... as a family history of schizophrenia, are widely ... gondii , a parasite transmitted by soil, undercooked ... skepticism. , A new study by Gary Smith, ... University of Pennsylvania,s School of Veterinary Medicine, used ...
(Date:10/29/2014)... Researching the safety of nanoparticles is all the rage. ... topic, examining the question of whether titanium dioxide nanoparticles ... into the body, whether carbon nanotubes from electronic products ... to be or whether nanoparticles in food can get ... Public interest is great, research funds are flowing – ...
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