Tuesday, February 16, 2010
Sequencing the oldest modern human
Using a tuft of hair found in Greenland's permafrost, scientists have been able to sequence the entire genome and deduce some characteristics about the oldest modern man. A newspaper summary of the article can be found on the BBC website.
Monday, February 8, 2010
Founding Haplotypes
Analysis of mitochondial DNA in 30 Shuswap speaking Native Americans shows that a few had haplogroups rarely found in the Americas, as well as one (C4c) beleived to be a founding haplotype.
A quick look at why DNA analysis is essential to all hypotheses about the founding and peopling the New World.
A quick look at why DNA analysis is essential to all hypotheses about the founding and peopling the New World.
Sunday, February 7, 2010
you may be older than you think
you may be functionally older because of alleles that shorten your telomere length
Friday, January 22, 2010
Tracing the origins of rescued chimpanzees reveals widespread chimpanzee hunting in Cameroon
An analysis of mtDNA sequences and microsatellite loci in chimpanzees from the Limbe Wildlife Centre in Cameroon reveals the widespread presence of chimpanzee hunting within the country
Thursday, January 14, 2010
Highly Punctuated Patterns of Population Structure on the X Chromosome and Implications for African Evolutionary History
87% of X-linked HapMap SNPs within the top 1% of FST values cluster into five distinct loci; analyses and resequencing data suggest that these five regions have been substrates of recent and strong adaptive evolution. Evolutionary implications are discussed.
Wednesday, January 13, 2010
An explicit signature of balancing selection for color-vision variation in new world monkeys
Using fecal DNA, the authors were able to sequence the L-M (red-green) opsin gene in wild spider monkeys (Ateles geoffroyi) and capuchins (Cebus capucinus). They found that these populations showed greater polymorphism in this gene than other DNA reference points, providing evidence that balancing selection is acting on color vision in New World primates.
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