Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

The Most Southern Reindeer

15.05.2006
The Tuva reindeer quantity has fallen down to the critical level, but the population still preserves sufficient genetic diversity.

Such conclusion has been made by specialists of the Vavilov Institute of General Genetics, Russian Academy of Sciences, who worked at the deer-raising farms in the Todzhinski Region, Tuva. Control over genetic markers and well thought-out breeding system will help to protect the most southern domestic reindeer population from degeneration. The researchers assessed genetic diversity by comparing sequences of animals’ mitochondrial DNA. Material for investigation was received from pieces of dried unprocessed hides of recently slaughtered reindeer.

Mountain taiga of Southern Siberia is a small deer-raising islet distant from the main natural habitat. The major part of domestic reindeer inhibits Russian tundra from Kola Peninsula through Chukotka, in Siberia, reindeer lives even in mountain taiga. The taiga deer-raising zone occupies the territory through to 60° north latitude. One of the most southern domestic reindeer populations inhabits Republic of Tyva (Tuva). Main herds of the Tuva population are concentrated in the north-east of the Republic, in the Todzhinsky Region. Small ethnic groups – the Tofa in the Irkutsk Region, the Soyots in Buryatia, and the Mongolian Duha – living in the neighborhood also breed deer. In contrast to reindeer-breeders of Southern Siberia and Europe, who pasture huge reindeer herds in tundra and mainly use them for meat-preparing, people of Southern Siberia and Northern Mongolia breed small herds in taiga and alpine tundra. They need reindeer predominantly as pack and saddle animals, and as milch animals.

The Golden Age of the Tuva deer-raising fell on the late 30-s of the 20th century when reindeer quantity was equal to 19 thousand head, thus approaching the maximum. However, since 1980 through 2000, the quantity of reindeer dropped abruptly. There remained about a thousand head of reindeer, and that means that in case of any epidemic the Tuva domestic reindeer population may simply vanish from the face of the earth. Degeneration is the second threat to a scanty population, as small livestock is often entailed by genetic uniformity. The Moscow geneticists came to Tuva particularly to assess genetic diversity.

The researchers managed to single out mitochondrial DNA from 29 hides, among which they discovered sufficient genetic diversity, although more than half of slaughtered animals had descended from the same female. Analysis of mitochondrial genome allows to evaluate only maternal diversity. As only one sire ususally falls on a herd of 5 to 20 females in the Todzhinsky Region, genetic diversity in terms of chromosomal DNA may be lower than that in terms of mitochondrial one. This is still to be verified. In the researchers’ opinion, the Tuva reindeer population needs continuous control over genetic diversity. In this case, there remains hope for saving the most southern reindeer from degeneration.

Sergey Komarov | alfa
Further information:
http://www.informnauka.ru

More articles from Agricultural and Forestry Science:

nachricht Plasma-zapping process could yield trans fat-free soybean oil product
02.12.2016 | Purdue University

nachricht New findings about the deformed wing virus, a major factor in honey bee colony mortality
11.11.2016 | Veterinärmedizinische Universität Wien

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

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

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

New Study Will Help Find the Best Locations for Thermal Power Stations in Iceland

19.01.2017 | Earth Sciences

Not of Divided Mind

19.01.2017 | Life Sciences

Molecule flash mob

19.01.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>