HOME >> BIOLOGY >> NEWS
Chimpanzee subspecies are genetically mixed and more diverse than humans, according to research in 5 November 1999 Science

. Why would one type of DNA paint a picture of strict barriers erected between groups and another reveal a widely intermingling population? According to the scientists, the disagreement could be a matter of timing. Since changes in mitochondrial DNA only have to spread through the maternal side of the genome, it appears to "evolve" more rapidly. Like the difference between an instant Polaroid snapshot and a photograph slowly developing in a darkroom, mitochondrial and nuclear DNA may be suited to capturing evolutionary events--such as the development of discrete subspecies--on different time scales.

In the case of the chimpanzees, "it is likely that the subspecies are old enough for the mitochondrial DNA to have become different between the subspecies, but not old enough for this to have happened to the nuclear genes," said Pbo. Since biologists often single out genetically unique populations like subspecies as a focus of conservation efforts, this distinction could have real-life implications for protecting endangered chimpanzees.

Xq13.3 had yet another surprise up its sleeve when it came to the bond between the chimpanzee and the bonobo. Their evolutionary tree revealed a closer relationship between the two separate species than was inferred from other DNA sequences. In fact, some common chimpanzees were more genetically distant from each other than they were from bonobos, a startling fact given that the two are currently separated at the species level. The results indicate that the chimpanzee and the bonobo may have split off in separate evolutionary directions quite recently.

The researchers believe that this high degree of genetic intermixing among the chimpanzee groups makes it unlikely that any cultural differences between chimpanzee populations are due to genes determining behavior. "Rather, these differences are probably truly the result of cultural evolution, the transmission of learned behaviors from generation to generation," sa
'"/>

Contact: Heather Singmaster
hsingmas@aaas.org
202-326-6414
American Association for the Advancement of Science
3-Nov-1999


Page: 1 2 3 4

Related biology news :

1. Chimpanzees with little or no human contact found in remote African rainforest
2. Chimpanzee stone tool site excavated
3. Chimpanzee virus may be key to better vaccines, study shows
4. Lemur Juliet may be new subspecies; no mate for Romeo
5. First large-scale trial of genetically personalised treatment for breast cancer to start soon
6. Double mastectomies significantly lower risk of breast cancer in women who are genetically at risk
7. Ecosystem consequences of a single, genetically based plant trait
8. Could memory performance and spatial learning be genetically based?
9. Cows resistance to worms is genetically determined
10. UC Riverside to convene conference on genetically modified organisms, Oct. 14-17, 2003
11. UCR geneticist spells out consequences of genetically engineered genes escaping into wild species

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/14/2016)... HANOVER , Allemagne, March 14, 2016 /PRNewswire/ ... http://www.apimages.com ) - --> - ... ) - --> ... les solutions biométriques, fournit de nouveaux lecteurs d,empreintes ... lecteur LF10 de DERMALOG sera utilisé pour produire ...
(Date:3/11/2016)... -- --> --> ... Market by Technology (Pattern Recognition), by Component (Hardware, Software, ... (On-Premises and Cloud), by Industry Vertical and by Region ... global market is expected to grow from USD 12.49 ... at a CAGR of 19.1%. , ...
(Date:3/10/2016)... March 10, 2016   Unisys Corporation (NYSE: ... Protection (CBP) is testing its biometric identity solution at ... to help identify certain non-U.S. citizens leaving the ... test, designed to help determine the efficiency and accuracy of ... February and will run until May 2016. --> ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... Calif. (PRWEB) , ... May 25, 2016 , ... Lajollacooks4u ... area and has consistently been rated one of its top attractions. Fortune 500 ... globe to participate in a unique and intimate team-building experience. , Each event kicks ...
(Date:5/25/2016)... ... May 25, 2016 , ... Founder of the Fitzmaurice ... surgery and surgery of the hand by the National Board of Physicians and ... above and beyond in his pursuit of providing the most comprehensive, effective treatment ...
(Date:5/25/2016)... ... May 25, 2016 , ... WEDI, the nation’s leading ... today announced that Charles W. Stellar has been named by the WEDI Board of ... January 2016. As an executive leader with more than 35 years of experience in ...
(Date:5/24/2016)... ... May 24, 2016 , ... Cell ... injuries, will be accelerated by research at Worcester Polytechnic Institute (WPI) that yielded ... healing and tissue regeneration. , The novel method, developed by WPI faculty members ...
Breaking Biology Technology:
Cached News: