"They also observed important changes in the immune and cardiovascular systems, whereas the digestive system remained relatively unchanged."
New York, April 23 - Only we, the Homo sapiens, who lived side by side with Neanderthals and Denisovans of Siberia survived and a study offers fresh insights into what gave the modern man the advantage over other extinct humans.

It is the epigenetic changes that may have shaped our own species, said the study.

While genetics deals with the DNA sequence itself and the heritable changes in the DNA -, epigenetics deals with heritable traits that are not caused by mutations.

This epigenetic regulatory layer controls where, when and how genes are activated, and is believed to be behind many of the differences between human groups, said the study.

Indeed, many epigenetic changes distinguish the modern man from the Neanderthal and the Denisovan, showed the team of researchers.

For the study, the researchers reconstructed the epigenome of the Neanderthal and the Denisovan.

Then, by comparing this ancient epigenome with that of modern humans, they identified genes whose activity had changed only in our own species during our most recent evolution.

Among those genetic pattern changes, many are expressed in brain development, found the researchers.

They also observed important changes in the immune and cardiovascular systems, whereas the digestive system remained relatively unchanged.

The study appeared in the journal Science.


comments powered by Disqus
Read more on:
 RESEARCH (16031 views)
 JOURNAL (13741 views)
 BRAIN (11091 views)
 YORK (6711 views)
 MAINE (4981 views)
 GENETIC (3831 views)
 BRAIN DEVELOPMENT (3460 views)
 EVOLUTION (3031 views)
 SIBERIA (2218 views)
 GENETICS (2176 views)
 NEANDERTHAL (2071 views)
 CARDIOVASCULAR (1751 views)
 JOURNAL SCIENCE (1251 views)
 EPIGENETIC (411 views)
 EPIGENETIC CHANGES (51 views)
 DENISOVAN (14 views)
 DENISOVANS (5 views)
 

PERMALINK

http://www.nerve.in/news:2535002369132
You can quote the permanent link above for a direct link to the story. We do not archive or expire our news stories.


STORY OPTIONS
  Email this story to a friend
  XML feed for Americas


 
COPYRIGHTS INFORMATION
All rights reserved for news content. Reproduction, storage or redistribution of Nerve content and articles in any medium is strictly prohibited.
Contact Nerve Staff for any feedback, corrections and omissions in news stories.
 

All rights reserved for the news content. Reproduction, storage or redistribution of Nerve content and articles in any medium is strictly prohibited.