© flickr.com/ Yasser
TOMSK, Oct 18 – RIA Tomsk.
Geneticists of Tomsk State University (TSU) created a hybrid of Italian and
Russian species of mosquitoes, assuming that it help to understand why
different types have various arrangements of chromosomes in a kernel and
whether it influences features of species, the TSU employee of the laboratory
of evolutionary cytogenetics Gleb Artyomov reported.
"Evolution of malarial
mosquitoes is followed by reorganization of chromosomes in a kernel. Evolution
is also connected with change of ability of mosquitoes to have malaria, and
also with preference of mosquitoes, for example, some types suck blood at
animals more often, and some at people. But it is unclear, whether these
aspects are connected. This is a basic research", – he told.
The scientist noted that the one of
opportunities to understand this question is studying of an order of chromosomes
at a hybrid of two similar types. For example, the Italian malarial mosquitoes
Anopheles labranchiae and the Russian Anopheles atroparvus which it is possible
to distinguish only by means of the genetic analysis: in particular, these
types have a different spatial organization of chromosomes.
© РИА Томск. Павел Стефанский
Artyomov emphasized that these rules
can be extended on all live organisms. So, results of the research will be
useful not only when studying insects, but also to all who deals with issues of
a specific variety of plants and animals.
According to the press service of
the higher education institution, when collecting materials for research Tomsk
scientists used the help of colleagues from Italy. In particular, thanks to
contacts with colleagues at the Roman University La Sapienza, they could work
in laboratory of one of the world's largest specialists in malarial mosquitoes
of Alessandra de la Torre.
"The collecting of material
took place on farms of Tuscany. There on a narrow strip between the Apennines and
the Tyrrhenian Sea in coastal areas and on the cultivated rice fields
mosquitoes Anopheles labranchiae live. Catching of insects took place according
to the same scheme, as in Russia: they were caught on farms where female
mosquitoes, having got drunk blood of pets, were going to postpone eggs",
– is specified in TSU.