Researchers Reveal Genetic Secrets of “Living Fossil” Coelacanth

Researchers Reveal Genetic Secrets of “Living Fossil” Coelacanth

Scientists have revealed the genetic secrets of a "living fossil" Coelacanth by sequencing its genome. Coelacanth is a deep-sea fish that closely resemble its ancestors lived at least 300 million years ago.

The findings revealed that evolution of some of the animal's genes happened very slowly. The study also analyzed the association of the fish with the first land-bases animals. Scientists believe that four large fleshy fins of coelacanth could have been the predecessors of limbs.

Also, the study suggested that the fish had a close relation with early tetrapods. Tetrapods were the first creatures to drag themselves out of the ocean and develop the ability to live on land.

The study was published in the journal Nature. Lungfish was suggested by the study to have more genes related to land-based animals. Lungfish also has four limbs.

The coelacanth is known to grow 2m-long and is found in caves deep beneath the waves. It was previously thought that they have been extinct for millions of years, until 1938 when it was stuck in a trawlerman's net off the coast of Africa.

An international team of researchers sequenced the coelacanth's genome that contained nearly three billion DNA bases.

Professor Kerstin Lindblad-Toh, from the University of Uppsala in Sweden and the Broad Institute of MIT and Harvard in the US, said, "It lives several hundred meters down in the ocean, and it may also be in an environment where it doesn't have a lot of competitors".


FrenchTribune Specials

Apple acknowledges 'Error 53' message triggered by updating iPhone 6 to iOS 9

In a recent exchange of correspondence with The Guardian, tech giant Apple has publicly acknowledged the dreaded 'Error 53' message, which shows up for iPhone 6 users when they update their unofficially-repaired handsets to iOS version 9 or higher.

The 'Error 53' glitch, which was previously being considered a bug, is triggered during...

Most Popular

Tesla hires Jim Keller to lead its Autopilot hardware engineering team

According to an Electrek report, electric vehicle...

Google is testing drones for delivering high-speed wireless Internet

The Guardian has revealed in a recent report that tech...

Google: ‘Project Loon’ does not pose any risk to humans or environment

Tech giant Google has sent a letter to the US Federal...

Amazon reports lower-than-expected earnings for 2015 Q4

On Thursday, bigwig online retailer Amazon. com reported...

Poll

Can Greece Come out of Economic Problems: