Sentences with phrase «genomes of polar bears»

Not exact matches

The sequencing of the oldest mammalian genome from an ancient polar bear jawbone provides clues about these animals» fraught relationship with climate change

A team led by Rasmus Nielsen of the University of California, Berkeley, sequenced the genomes of 89 polar bears and 10 brown bears, their closest relative.

By analyzing the genomes of 28 bears — polar bears, including a roughly 120,000 - year - old specimen from Norway's Svalbard archipelago, as well as modern brown bears and black bears — the scientists in effect read back in time to a common ancestor at least four million years ago.

In the latest sequencing effort, Willerslev and researchers from Denmark, China, and the United States analyzed the genomes of 80 polar bears from Greenland and 10 brown bears from North America and Europe.

Charlotte Lindqvist of the University at Buffalo, New York, and an international team of researchers have just completed the most comprehensive analysis yet of the polar bear genome.

Aided by comparisons with the genomes of brown and black bears, they found that polar bears first emerged as a separate species between 4 and 5 million years ago.

In addition, six mt genomes were generated of extant polar bears from Alaska and brown bears from the Admiralty and Baranof islands of the Alexander Archipelago of southeastern Alaska and Kodiak Island.

With recent announcements of plans for sequencing the genome from present - day polar bear (34) offering a necessary reference, future sequencing of all or a substantial fraction of the nuclear genome of this exceptionally well preserved Pleistocene polar bear specimen may be feasible.