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More than 2T tons of ice melted in artic since `03 WASHINGTON (AP) -- More than 2 trillion tons of land ice in Greenland, Antarctica and Alaska have melted since 2003, according to new NASA satellite data that show the latest signs of what scientists say is global warming.... The Arizona RepublicEvolutionary-new centromeres preferentially emerge within gene deserts Background:Evolutionary-New Centromeres (ENCs) result from the seeding of a centromere at an ectopic location along the chromosome during evolution. The novel centromere rapidly acquires the complex structure typical of eukaryote centromeres. This phenomenon has played an important role in shaping primate karyotypes. A recent study on the ENC of macaque chromosome 4 (human 6) showed that the ENC domain was deeply restructured, following the seeding, with respect to the corresponding human region assumed as ancestral. It was also demonstrated that the region was devoid of genes. We hypothesized that these two observations were not merely coincidental and that the absence of genes in the seeding area constituted a crucial condition for the ENC fixation in the population. Results:To test our hypothesis we characterized 14 ENCs selected according to conservative criteria. Using different experimental approaches we assessed the extent of genomic restructuring. We then determined the gene Genomebiology.comOver 1,000 species discovered in the Greater Mekong in past decade A rat thought extinct for 11 million years and a hot-pink, cyanide-producing dragon millipede are among a thousand new species discovered in the Greater Mekong Region of Southeast Asia in the last decade, according to a new report launched by World Wildlife Fund (WWF). Biologynews.comGenome-wide SNP genotyping highlights the role of natural selection in Plasmodium falciparum population divergence Background:The malaria parasite Plasmodium falciparum exhibits abundant genetic diversity, and this diversity is key to its success as a pathogen. Previous efforts to study genetic diversity in P. falciparum have begun to elucidate the demographic history of the species, as well as patterns of population structure and patterns of linkage disequilibrium within its genome. Such studies will be greatly enhanced by new genomic tools and recent large-scale efforts to map genomic variation. To that end, we have developed a high throughput single nucleotide polymorphism (SNP) genotyping platform for P. falciparum. Results:Using an Affymetrix 3,000 SNP assay array, we found roughly half the assays (1,638) yielded high quality, 100% accurate genotyping calls for both major and minor SNP alleles. Genotype data from 76 global isolates confirm significant genetic differentiation among continental populations and varying levels of SNP diversity and linkage disequilibrium according to geographic Genomebiology.comNo Black Cats contact for Strach Sunderland have not made an approach for Celtic manager Gordon Strachan, according to the Hoops boss' agent. The Black Cats are currently without a permanent boss after Roy Keane parted company wit... bignewsnetwork.comExperimental Treatment Lengthens Lifespan Of Monkeys With Simian Version Of HIV, Study Says Macaque monkeys with simian immunodeficiency virus -- the simian equivalent of HIV -- that received a single dose of an experimental treatment survived nearly twice as long as monkeys who did not receive the drug, according to a study published Wednesday in the journal Nature, BBC News reports. Medicalnewstoday.comPublication Announcement - Public Expectations For Return Of Results From Large-Cohort Genetic Research Participants in a series of focus groups felt strongly that anyone taking part in a large-cohort genetic study should have access to their research results, according to a new paper in the American Journal of Bioethics. Medicalnewstoday.comNearly 6.4 million Californians lack health insurance, report shows Nearly a quarter of all Californians under age 65 were without health insurance for all or some of 2007, according to a policy brief drawing on comprehensive new data released today from the UCLA Center for Health Policy Research. Eurekalert.orgS Korea Government Announce Plans to be Global Leader in Nanotechnology South Korean government announced Tuesday its goal of becoming one of the top three nanotechnology industry leaders by capturing 15 percent of the global market by 2015. According to the Ministry o... azonano.comShared survival mechanism explains why `good` nerve cells last and `bad` cancer cells flourish Cancer cells and nervous system neurons may not look or act alike, but both use strikingly similar ways to survive, according to new research from the University of North Carolina at Chapel Hill School of Medicine. Eurekalert.org1 2 |
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