ISSN 1062-3604, Russian Journal of Developmental Biology, 2007, Vol. 38, No. 1, pp. 55–56. © Pleiades Publishing, Inc., 2007.
Original Russian Text © N.D. Ozernyuk, V.I. Mitashov, S.G. Vassetzky, 2007, published in Ontogenez, 2007, Vol. 38, No. 1, pp. 67–68.
Leonid I. Korochkin passed away as a result of
tragic accident. Korochkin was an outstanding biolo-
gist, geneticist, member of the Russian Academy of
Sciences, winner of the Russian Federation State Prize,
head of the Laboratory of Molecular Developmental
Biology at the Kol’tsov Institute of Developmental
Biology, Russian Academy of Sciences.
This is a great loss for the Russian science, which
we will experience for many years.
Leonid I. Korochkin was born in Novokuznetsk. He
graduated from the secondary school in Kemerovo in
1954 and entered the Tomsk State Medical Institute,
from which he graduated in 1960. He entered the post-
graduate school at the Department of Histology and in
1961 got candidate degree (PhD) in biology for his
work on differentiation of the neural intramural system
of the human digestive tube.
In 1964, Korochkin moved to Novosibirsk, where he
organized the Group of Developmental Genetics in the
Institute of Cytology and Genetics, Siberian Branch of
the Academy of Sciences of the USSR, which later
became a laboratory. In 1968, he got the Doctoral
Degree in biology for his work on development and
aging of vegetative neurons.
At the Kol’tsov Institute of Developmental Biology,
Korochkin worked for a quarter of century, since 1980,
when he organized the Laboratory of Molecular Devel-
Many studies of Korochkin have been pioneering.
He was one of the ﬁrst in this country to use histochem-
ical methods for studying the processes of neurogene-
sis; he is the author of original studies of the role of cell
genome in determination and differentiation; he was
the ﬁrst to demonstrate periodicity of morphogenetic
nuclear activation during development of the cerebral
cortex. Korochkin studied genetic regulation of tissue
speciﬁc esterase during development of
localized the structural esterase gene and revealed the
system of genes encoding its expression. Molecular-
genetic mechanisms of cell determination were ﬁrst
described in Korochkin’s laboratory. Korochkin carried
out some pioneering studies of stem cells. He devel-
oped a new method of transformation of these cells
using the regulatory elements of
Leonid I. Korochkin is well known in this country
and abroad. He authored about 500 publications in Rus-
sian and international scientiﬁc journals, as well as six
monographs and two textbooks. Korochkin continu-
ously read lecture courses on developmental genetics
and neurogenetics. Many of his former postgraduate
students and students successfully work in research
institutes in this country and abroad. He was the advisor
of 15 doctoral and 50 candidate dissertations.
The work of Korochkin was awarded the State Prize
of Russian Federation and Kol’tsov Prize of the Rus-
sian Academy of Sciences, he was elected correspond-
ing member of the Russian Academy of Sciences, full
member of the Russian Academy of Natural Sciences
and Russian Medical-Technical Academy, honorary
member of the Moscow Society of Genetics and Selec-
tionists. He was constantly involved in organization of
scientiﬁc conferences and was assistant Secretary Gen-
eral of the 1978 International Congress of Genetics in
Moscow. Korochkin was a member of editorial boards
of several national and international scientiﬁc journals,
as well as of scientiﬁc councils.
Leonid I. Korochkin was a man of encyclopedic
knowledge and wide scientiﬁc interests. He was also
the author of several philosophical treatises, was well
To the Memory of Leonid I. Korochkin (1935–2006)