Navigation Links
Blue eyes and dark skin, that's how the European hunter-gatherer looked
Date:1/26/2014

La Braa 1, name used to baptize a 7,000 years old individual from the Mesolithic Period, whose remains were recovered at La Braa-Arintero site in Valdelugueros (Len, Spain) had blue eyes and dark skin. These details are the result of a study conducted by Carles Lalueza-Fox, researcher from the Spanish National Research Council (CSIC), in collaboration with the Centre for GeoGenetics (Denmark). La Braa 1 represents the first recovered genome of an European hunter-gatherer. The research is published in Nature.

The Mesolithic, a period that lasted from 10,000 to 5,000 years ago (between the Paleolithic and the Neolithic), ends with the advent of agriculture and livestock farming, coming from the Middle-East. The arrival of the Neolithic, with a carbohydrate-based diet and new pathogens transmitted by domesticated animals, entailed metabolic and immunological challenges that were reflected in genetic adaptations of post-Mesolithic populations. Among these is the ability to digest lactose, which La Braa individual could not do.

Lalueza-Fox states: "However, the biggest surprise was to discover that this individual possessed African versions in the genes that determine the light pigmentation of the current Europeans, which indicates that he had dark skin, although we can not know the exact shade".

CSIC researcher, who works at the Institute of Evolutionary Biology (a joint centre of CSIC and the University Pompeu Fabra (UPF), located in Barcelona, adds: "Even more surprising was to find that he possessed the genetic variations that produce blue eyes in current Europeans, resulting in a unique phenotype in a genome that is otherwise clearly northern European".

The study of the genome suggests that current populations nearest to La Braa 1 are in northern Europe, such as Sweden and Finland. In addition, the work points out that La Braa 1 has a common ancestor with the settlers of the Upper Paleolithic site of Mal'ta, located in Lake Baikal (Siberia), whose genome was recovered a few months ago. Lalueza-Fox concludes: "These data indicate that there is genetic continuity in the populations of central and western Eurasia. In fact, these data are consistent with the archeological remains, as in other excavations in Europe and Russia, including the site of Mal'ta, anthropomorphic figures called Paleolithic Venus have been recovered and they are very similar to each other".

DNA with an "exceptional" preservation

La Braa-Arintero site was discovered by chance in 2006 and excavated by Julio Manuel Vidal Encinas, archeologist of the Council of Castilla y Len. The cave, located in a cold mountainous area with a steady temperature and 1,500 meters below the sea level, contributed to the "exceptional" preservation of the DNA from two individuals found inside, and they were called La Braa 1 and La Braa 2.

According to Iigo Olalde, lead author of the study, "the intention of the team is to try to recover the genome of the individual called La Braa 2, which is worse preserved, in order to keep obtaining information about the genetic characteristics of these early Europeans".


'/>"/>

Contact: Ainhoa Goñi
ainhoa.goni@csic.es
34-915-681-473
Spanish National Research Council (CSIC)
Source:Eurekalert  

Related biology news :

1. Virtual women reveal more skin, regardless of body proportions
2. Alnylam and UMass Medical School announce Tuschl I patent upheld in European opposition proceedings
3. An invasive Asian fly is taking over European fruit
4. Building the European Unions Natura 2000 -- the largest ever network of protected areas
5. European grasslands challenge rainforests as the most species-rich spaces on Earth
6. European mountain plant population shows delayed response to climate change
7. European Society of Human Reproduction and Embryology 28th Annual Meeting -- Istanbul
8. Citizen science helps unlock European genetic heritage
9. PETA files complaint with European ombudsman over animal testing for REACH
10. First Indian-European research networking projects in the social sciences launched
11. Ukraine to Introduce European Standard of Biometric ID
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Blue eyes and dark skin, that's how the European hunter-gatherer looked
(Date:5/26/2020)... ... May 26, 2020 , ... ... software solutions for biopharmaceutical R&D, today announced that Gritstone Oncology, Inc., a ... (TCR)-mimetic bispecific T cell engagers and TCR-based therapeutics, has implemented Genedata ...
(Date:5/21/2020)... Ariz. (PRWEB) , ... May 20, 2020 , ... Law ... and remove danger for all of us. The positions of these men and women ... from the defense for not following rules precisely. Officers have always had to face ...
(Date:5/14/2020)... ALPHARETTA, Ga. (PRWEB) , ... May 14, 2020 ... ... ), a job board for medical sales representatives, found the 2019 average medical ... encouraging 2020 findings risk being shadowed by uncertainties amid the COVID-19 global crisis. ...
Breaking Biology News(10 mins):
(Date:6/23/2020)... ... June 23, 2020 , ... DeCurtis Corporation, the premier provider ... Derek Fournier has been appointed CEO and President. Founder and former CEO, David ... , “DeCurtis Corporation has been on an incredible journey for the last twenty ...
(Date:6/23/2020)... YORK (PRWEB) , ... June 22, 2020 , ... ... its lead glutamine antagonist, DRP-104, will be presented June 22-24 during the American ... effects of DRP-104; and, the other profiles the potent, consistent single agent activity ...
(Date:6/19/2020)... ... June 18, 2020 , ... The Vitaspace ... is to join forces to radically prolong life and find a way (medicine or ... period. This project was supported by various scientists from all over the world, doctors, ...
(Date:6/11/2020)... ... June 09, 2020 , ... PathSensors Inc., a Baltimore ... Innovation Research (SBIR) program funded by the National Institute of Food and Agriculture ... Field”. The project’s goal was to engineer and develop a field-deployable instrument for ...
Breaking Biology Technology: