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jawed in Medical News

UF scientists Throw light on the origin of vertebrate skeleton

...he UF departments of zoology and anatomy and cell biology. "Knowing that lampreys also use collagen to build their skeletons makes sense. Lampreys and jawed vertebrates inherited the same genetic program for skeletal development from our common ancestor." Lampreys are found in the Great Lakes and othe...
jawed in Biological News

August 2009 Geology and GSA Today media highlights

...rds of the fish species and causing major ecological reorganizations over an estimated time span of 200,000 years. Immediately prior to the event, the jawed acanthodians dominated the fish faunas, whereas the event led to a diverse fauna and a brief but marked dominance of the jawless thelodonts. Both thes...

Naming evolution's winners and losers

...that amount of time," Alfaro said. There are almost 60,000 species of jawed vertebrates. Alfaro and his colleagues report evidence for exceptional diversification rates in nine taxonomic groups of jawed vertebrates. Interestingly, their findings do not coincide with traditional...

Elephant shark genome sequence leads to discovery of color perception in deep-sea fish

...hark, a primitive deep-sea fish that belongs to the oldest living family of jawed vertebrates, can see color much like humans can. This discovery, publis...tled, "Large number of ultraconserved elements were already present in the jawed vertebrate ancestor," published in the journal Molecular Biology and Evolut...

Dartmouth researchers find the root of the evolutionary emergence of vertebrates

...ighest rate of microRNA innovation in the vertebrate lineage occurred before the divergence between the living jawless fishes like the lamprey and the jawed fishes like the shark, but after the divergence of vertebrates from their invertebrate chordate relatives, such as the sea squirt. Co-author Donogh...

Tiny Tampa Bay fish key to evolution of immune system

...the UF Shands Cancer Center. "This is the first organism below the level of jawed vertebrates that expresses the type of proteins we use in our own complex a...adaptive immune system, and we have found this link just below the level of jawed vertebrates," he said. "We found an intermediate. We found an immune system...

Scientists reverse evolution

...es during development of an animal embryo. Until sometime between 530 million and 480 million years ago, early animals had 13 Hox genes. Then, in jawed fish ?the last common ancestors of modern vertebrate animals ?each Hox gene had split into four, so 13 became 52. Later, duplicate Hox genes either m...

UF scientists reveal ancient origin of vertebrate skeleton

...to build their skeletons makes sense. Lampreys and jawed vertebrates inherited the same genetic program for...dy parts. About 40 million years into the process, jawed and jawless vertebrates branched into different pa... II collagen - the primary structural molecule for jawed vertebrates for at least 500 million years. It is ...

UF scientists reveal ancient origin of vertebrate skeleton

...to build their skeletons makes sense. Lampreys and jawed vertebrates inherited the same genetic program for...dy parts. About 40 million years into the process, jawed and jawless vertebrates branched into different pa... II collagen - the primary structural molecule for jawed vertebrates for at least 500 million years. It is ...
jawed in Biological Dictionary

Vertebrates

... watsoni (Thomas' ... Introduction to the vertebrates and their classification, including the Hyperoartia, or lampreys, and the Gnathostomata, or jawed vertebrates . Terrestrial vertebrates have a worldwide distribution. ... The largest group of terrestrial vertebrates is Tetrapoda (see the se...
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