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:3/30/2017)... March 30, 2017  On April 6-7, 2017, Sequencing.com ... Genome hackathon at Microsoft,s headquarters in ... will focus on developing health and wellness apps that ... Hack the Genome is the first hackathon for ... world,s largest companies in the genomics, tech and health ...
(Date:3/30/2017)... March 30, 2017 Trends, opportunities and forecast ... behavioral), by technology (fingerprint, AFIS, iris recognition, facial recognition, ... others), by end use industry (government and law enforcement, ... and banking, and others), and by region ( ... Asia Pacific , and the Rest ...
(Date:3/28/2017)... India , March 28, 2017 ... IP, Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), Software ... Vertical, and Region - Global Forecast to 2022", published ... Billion in 2016 and is projected to reach USD ... between 2017 and 2022. The base year considered for ...
Breaking Biology News(10 mins):
(Date:7/18/2017)... ... July 18, 2017 , ... Genedata, ... a leading science and technology company, has implemented Genedata Biologics ™ to ... areas of Oncology, Immunology, and Neurodegenerative Diseases. , The need to systematically evaluate ...
(Date:7/17/2017)... ... , ... Whitehouse Laboratories is excited to announce that it ... of ISO 80369 standard test procedures. The ISO 80369 series of eight test ... With this recent expansion, Whitehouse Labs becomes one of the only facilities in ...
(Date:7/17/2017)... ... July 17, 2017 , ... Panitch Schwarze ... participated in the BiG (Biomedical Innovation Group) annual meeting in China. , This ... (chimeric antigen receptor T-cell) therapy, a rapidly developing highly personalized anti-cancer technology that ...
(Date:7/15/2017)... , ... July 15, 2017 , ... Cuvette ... years. During this time, the people at FFS have learned that their biggest ... engineers at FFS are able to launch new products to meet the changing needs ...
Breaking Biology Technology:
Cached News: