Eva Jablonka
Encyclopedia
Eva Jablonka is a theorist and geneticist, known especially for her interest in epigenetic inheritance. Born in 1952 in Poland
Poland
Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

, she emigrated to Israel
Israel
The State of Israel is a parliamentary republic located in the Middle East, along the eastern shore of the Mediterranean Sea...

 in 1957. She is a professor
Professor
A professor is a scholarly teacher; the precise meaning of the term varies by country. Literally, professor derives from Latin as a "person who professes" being usually an expert in arts or sciences; a teacher of high rank...

 at the Cohn Institute for the History of Philosophy of Science and Ideas at Tel Aviv University
Tel Aviv University
Tel Aviv University is a public university located in Ramat Aviv, Tel Aviv, Israel. With nearly 30,000 students, TAU is Israel's largest university.-History:...

. In 1981 she was awarded the Landau Prize of Israel for outstanding Master of Science (M.Sc) work and in 1988, the Marcus prize for outstanding Ph.D work. She is a proponent of academic freedom, recognising that on such matters, "academic and political issues cannot really be kept apart", although she is not a proponent of simplistic solutions, and shows a preference to describe her own position.

Work on evolutionary themes

Jablonka publishes about evolution
Evolution
Evolution is any change across successive generations in the heritable characteristics of biological populations. Evolutionary processes give rise to diversity at every level of biological organisation, including species, individual organisms and molecules such as DNA and proteins.Life on Earth...

ary themes, especially epigenetics
Epigenetics
In biology, and specifically genetics, epigenetics is the study of heritable changes in gene expression or cellular phenotype caused by mechanisms other than changes in the underlying DNA sequence – hence the name epi- -genetics...

. Her emphasis on non-genetic forms of evolution has received interest from those attempting to expand the scope of evolutionist thinking into other spheres. An example of her work in this area is the book Animal Traditions (2000), co-authored with Eytan Avital, in which they extend models of human cultural transmission
Cultural learning
Cultural learning, also called cultural transmission, is the way a group of people or animals within a society or culture tend to learn and pass on new information...

 to the non-human animal world, to show that cultural evolution
Sociocultural evolution
Sociocultural evolution is an umbrella term for theories of cultural evolution and social evolution, describing how cultures and societies have changed over time...

 has played an important role in the evolution of other animals. Jablonka has been described as being in the vanguard of an ongoing revolution within evolutionary biology, and was a keynote speaker at the Artificial Life
Artificial life
Artificial life is a field of study and an associated art form which examine systems related to life, its processes, and its evolution through simulations using computer models, robotics, and biochemistry. The discipline was named by Christopher Langton, an American computer scientist, in 1986...

 XI conference in 2008.

In 2005, Jablonka co-authored with Marion Lamb
Marion J. Lamb
Marion J. Lamb was Senior Lecturer at Birkbeck, University of London, before her retirement. She studied the effect of environmental conditions such as heat, radiation and pollution on metabolic activity and genetic mutability in the fruit fly Drosophila...

 the book Evolution in Four Dimensions, which is considered by some to be in the vanguard of an ongoing revolution within evolutionary biology. Building on the approach of evolutionary developmental biology
Evolutionary developmental biology
Evolutionary developmental biology is a field of biology that compares the developmental processes of different organisms to determine the ancestral relationship between them, and to discover how developmental processes evolved...

, and recent findings of molecular
Molecular biology
Molecular biology is the branch of biology that deals with the molecular basis of biological activity. This field overlaps with other areas of biology and chemistry, particularly genetics and biochemistry...

and behavioral biology, they argue the case for the transmission of not just genes per se, but heritable variations transmitted from generation to generation by whatever means. They suggest that such variation can occur at four levels. Firstly, at the established physical level of genetics. Secondly, at the epigenetic level involving variation in the “meaning” of given DNA strands, in which variations in DNA translation during developmental processes are subsequently transmitted during reproduction, which can then feed back into sequence modification of DNA itself. The third dimension is one of particular interest to Jablonka, comprising the transmission of behavioural traditions. There are for example documented cases of food preferences being passed on, by social learning, in several animal species, which remain stable from generation to generation while conditions permit. The fourth dimension is symbolic inheritance, which is unique to humans, and in which traditions are passed on “through our capacity for language, and culture, our representations of how to behave, communicated by speech and writing.”

In their treatment of the higher levels, Jablonka and Lamb distinguish their approach from the banalities of evolutionary psychology, of "memes", and even from Chomskyian ideas of universal grammar. The argue that there are constant interactions between the levels - epigenetic, behavioural and even symbolic inheritance mechanisms also produce selection pressures on DNA-based inheritance and can, in some cases, even help direct DNA changes themselves - so "evolving evolution". To liven their text, they utilise thought experiments and dialogue with a sceptical enquirer, one IM-Ifcha Mistraba, Aramaic, they say, for "the opposite conjecture".

Publications

In English:
  • Eva Jablonka and Marion J. Lamb (1995). Epigenetic Inheritance and Evolution: the Lamarckian Dimension, Oxford University Press. ISBN 0198540639, ISBN 9780198540632, ISBN 978-0198540632
  • Eytan Avital and Eva Jablonka. (2000) Animal Traditions: Behavioural Inheritance in Evolution. Cambridge University Press. ISBN 0521662737
  • Eva Jablonka and Marion J. Lamb (2005) Evolution in Four Dimensions: Genetic, Epigenetic, Behavioral, and Symbolic Variation in the History of Life. MIT Press. ISBN 0262101076 (First published 1990).


In Hebrew:
  • Eva Jablonka (1994) History of Heredity. Ministry of Defence Publishing House, Israel.
  • Eva Jablonka (1994–1997) Evolution: A Textbook in Evolutionary Biology for the Open University, Israel. Open University Press. 7 units. 700 pages.

External links

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