Content with the tag: “dna”
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New World Frogs
A new paper on the evolutionary relationships among New World tropical frogs was published online this week in PNAS. The authors, including members of the NAI Penn State Team, used DNA sequence and molecular clock analyses to further understand the frogs’ origin as more likely by dispersal over water from South America, than via land connections with North and South America.
June 6, 2007 / Posted by: Shige Abe
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Microbial Diversity in the Deep Sea
NAI PI of the Marine Biological Laboratory Team, Mitch Sogin, and his team have published a new paper in PNAS documenting astonishing new findings of microbial diversity in the deep sea. The findings are the result of a new DNA technique called “454 tag sequencing.”
Image courtesy of Micro*scope
July 31, 2006 / Posted by: Shige Abe
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