Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Genes contribute to patriotism and group loyalty

15.11.2005


Research showing how genes affect group loyalty and patriotism was published in the October 2005 issue of Nations and Nationalism, an academic journal of the London School of Economics.



Entitled "Ethnic nationalism, evolutionary psychology, and genetic similarity theory," it shows how genetic similarity provides "social glue" in groups as small as two spouses and best friends or in those as large as nations and alliances.

The evidence comes from studies of identical and non-identical twins, adopted and non-adopted children, blood tests, social assortment, heritabilities, family bereavements, and large-scale population genetics.


For example, identical twins grieve more for their co-twin than do non-identical twins. And, family members grieve more for children who resemble their side of the family than they do their spouse’s side.

Also, spouses who are more genetically similar have longer and more satisfying marriages.

Based on their DNA, two randomly chosen individuals from the same ethnic group are found to be as related as first cousins.

Thus, two random people of English ancestry are the equivalent of a 3/8 cousin compared to people from the Near East; a 1/2 cousin by comparison with people from India; and like full cousins by comparison with people from China.

The study’s author, J. Philippe Rushton, professor of psychology at the University of Western Ontario said, "This explains why people describe themselves as having "ties of blood" with members of their own ethnic group, who they view as "special" and different from outsiders; it explains why ethnic remarks are so easily taken as ’fighting words.’"

Human social preferences, like mate choice and ethnic nepotism, are anchored in the evolutionary psychology of altruism. Adopting a "gene’s eye" point of view allows us to see that people’s favoritism to kin and similar others evolved to help replicate shared genes.

Since in aggregate people share more genes with their co-ethnics than they do with their relatives, ethnic nepotism is a proxy for family nepotism.

The paper describes the history of the Jewish people as providing perhaps the best-documented example of how genetic similarity intersects culture, history, and even politics.

Jewish groups are genetically similar to each other even though they have been separated for two millennia. Jews from Iraq and Libya share more genes with Jews from Germany and Russia than either group shares with the non-Jewish populations among whom they have lived over the intervening centuries.

Recent DNA studies of the ancient Hindu caste system has confirmed that upper castes are more genetically related to Europeans than are lower castes who are genetically more related to other south Asians. Although outlawed in 1960, the caste system continues to be the main feature of Indian society, with powerful political repercussions.

The paper described the group-identification processes as innate--part of the evolved machinery of the human mind. Even very young children make in-group/out-group distinctions about race and ethnicity in the absence of social learning.

Prof. J. Philippe Rushton | EurekAlert!
Further information:
http://www.charlesdarwinresearch.org/

More articles from Life Sciences:

nachricht Quasi-sexual gene transfer drives genetic diversity of hot spring bacteria
29.05.2015 | Carnegie Institution

nachricht Scientists use unmanned aerial vehicle to study gray whales from above
29.05.2015 | NOAA National Marine Fisheries Service

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Lasers are the key to mastering challenges in lightweight construction

Many joining and cutting processes are possible only with lasers. New technologies make it possible to manufacture metal components with hollow structures that are significantly lighter and yet just as stable as solid components. In addition, lasers can be used to combine various lightweight construction materials and steels with each other. The Fraunhofer Institute for Laser Technology ILT in Aachen is presenting a range of such solutions at the LASER World of Photonics trade fair from June 22 to 25, 2015 in Munich, Germany, (Hall A3, Stand 121).

Lightweight construction materials are popular: aluminum is used in the bodywork of cars, for example, and aircraft fuselages already consist in large part of...

Im Focus: Solid-state photonics goes extreme ultraviolet

Using ultrashort laser pulses, scientists in Max Planck Institute of Quantum Optics have demonstrated the emission of extreme ultraviolet radiation from thin dielectric films and have investigated the underlying mechanisms.

In 1961, only shortly after the invention of the first laser, scientists exposed silicon dioxide crystals (also known as quartz) to an intense ruby laser to...

Im Focus: Advance in regenerative medicine

The only professorship in Germany to date, one master's programme, one laboratory with worldwide unique equipment and the corresponding research results: The University of Würzburg is leading in the field of biofabrication.

Paul Dalton is presently the only professor of biofabrication in Germany. About a year ago, the Australian researcher relocated to the Würzburg department for...

Im Focus: Basel Physicists Develop Efficient Method of Signal Transmission from Nanocomponents

Physicists have developed an innovative method that could enable the efficient use of nanocomponents in electronic circuits. To achieve this, they have developed a layout in which a nanocomponent is connected to two electrical conductors, which uncouple the electrical signal in a highly efficient manner. The scientists at the Department of Physics and the Swiss Nanoscience Institute at the University of Basel have published their results in the scientific journal “Nature Communications” together with their colleagues from ETH Zurich.

Electronic components are becoming smaller and smaller. Components measuring just a few nanometers – the size of around ten atoms – are already being produced...

Im Focus: IoT-based Advanced Automobile Parking Navigation System

Development and implementation of an advanced automobile parking navigation platform for parking services

To fulfill the requirements of the industry, PolyU researchers developed the Advanced Automobile Parking Navigation Platform, which includes smart devices,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International symposium: trends in spatial analysis and modelling for a more sustainable land use

20.05.2015 | Event News

15th conference of the International Association of Colloid and Interface Scientists

18.05.2015 | Event News

EHFG 2015: Securing health in Europe. Balancing priorities, sharing responsibilities

12.05.2015 | Event News

 
Latest News

Quasi-sexual gene transfer drives genetic diversity of hot spring bacteria

29.05.2015 | Life Sciences

First Eastern Pacific tropical depression runs ahead of dawn

29.05.2015 | Earth Sciences

Donuts, math, and superdense teleportation of quantum information

29.05.2015 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>