A new study has revealed a mutation that observes how an ancient marine vertebra moved to land.
(Photo: Brian Gratwicke / Wikimedia Commons)
Members are extremely helpful. They have been adapted for different roles in different ecosystems through evolution.
The earliest found members date back to about 375 million years. Fossil records record how the wings of a prehistoric fish became more fragile thus allowing amphibian ancestors to land.
These creatures are called tetrapods or four limbs. Now, a new study of today’s fish gives us a new perspective on the genetic basis that paved the way for evolutionary change.
As Grew Fish Limits
Life began in the water. Animals moved slowly to land and moved from wings to limbs. But just as it happened millions of years ago has been an evolutionary mystery to scientists to this day.
A new study published in the journal Cell by researchers from Boston Children ‘s Hospital shows mutations of one of two zebrafish genes that can form limb – like wings in these fish.
Using the latest gene editing techniques, researchers were able to replicate in the laboratory, and scientists were able to discover how zebrafish grows fine. is like human arms.
Brent Hawkins, co-author and postdoctoral researcher at Harvard University, says, “My biggest surprise is that such a dramatic change to the wing skeleton and musculature is possible with just one mutation.
Hawkins adds that there were thought to be significant gene changes in fin-to-limb transitions.
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Examining fish movements
Researchers studied more than 10,000 animals with mumps for skeletal defects to find the relevant genes that triggered fish mutation. Among those was zebrafish that had developed extra bones in their wings.
Just like fruit flies and mice, zebrafish are classic study animals for understanding development and genetics.
Named as teleosts, or bony fish that support their wings on sharp rays. Some zebrafish mutants contained fish with extra bones. The bones were attached to muscled muscles and even formed just like human limbs.
Hawkins says, “Finding fish with extra end bones that shouldn’t be there was enough of the Éureka!” “
The most interesting thing was how the new bones needed other changes with the anatomy of the fish. Researchers explain that the development of the bud causes changes in musculature.
With one movement, the fish’s fin became more like people’s arms. With that Hawkins and his colleagues made an effort to figure out what might be responsible for the change.
Old fish had the ability to make human-like limbs before the event, with a little luck old mutants started a new lifestyle that they brought ashore. But the change since people became members has not just been for fishing.
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Check out more genetics news and information on the Science Times.