What is an epigenetic transgenerational phenotype? F3 or F2

Michael K Skinner

doi:10.1016/j.reprotox.2007.09.001

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What is an epigenetic transgenerational phenotype? F3 or F2

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What is an epigenetic transgenerational phenotype? F3 or F2

Michael K Skinner

Reproductive toxicology (Elmsford, N.Y.), Vol.25(1), pp.2-6

01/2008

DOI: https://doi.org/10.1016/j.reprotox.2007.09.001

Handle:

https://hdl.handle.net/2376/116238

PMCID: PMC2249610

PMID: 17949945

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Abstract

Gametogenesis - drug effects

Genetic Predisposition to Disease

Germ Cells - drug effects

Gene Expression Regulation, Developmental - drug effects

Reproduction - genetics

Genotype

Genomic Imprinting - drug effects

Reproduction - drug effects

Cell Differentiation - drug effects

Germ-Line Mutation

Epigenesis, Genetic - drug effects

Environmental Pollutants - toxicity

Phenotype

The ability of an environmental exposure to induce an epigenetic transgenerational adult onset disease phenotype is discussed in the current mini-review in the context of defining this phenomenon and the associated reproductive toxicology. A gestating female (F0 generation) exposure to an environmental compound results in the F1 generation embryo and F2 generation germ-line being directly exposed, such that the F3 generation is the first not directly exposed to the environmental compound. In contrast, postnatal or adult exposure (F0 generation) results in the F1 generation germ-line being exposed, such that F2 generation is the first to not be directly exposed to the environmental compound. The unequivocal transgenerational transmission of an adult onset disease phenotype through the germ-line requires assessment of the F3 generation for embryonic exposure, and F2 generation for postnatal exposure. This is in contrast to a number of F1 and F2 generation studies referred to as transgenerational. The reproductive toxicology associated with this transgenerational phenotype generally involves the reprogramming of the germ-line epigenome. The biological phenomenon involved in this reproductive toxicology deals with embryonic gonadal development and germ-line differentiation, or postnatally the gametogenesis process and germ cell development. The ability of an environmental compound (e.g. endocrine disruptor) to promote this reprogramming of the germ-line appears to be the causal factor in the epigenetic transgenerational phenotype.

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Title: What is an epigenetic transgenerational phenotype? F3 or F2
Creators: Michael K Skinner - Center for Reproductive Biology, School of Molecular Biosciences, Washington State University, Pullman, WA 99164-4231, USA. skinner@mail.wsu.edu
Publication Details: Reproductive toxicology (Elmsford, N.Y.), Vol.25(1), pp.2-6
Academic Unit: Biological Sciences, School of
Publisher: United States
Grant note: R01 ES012974 / NIEHS NIH HHS R01 ES012974-04 / NIEHS NIH HHS
Identifiers: 99900547539001842
Language: English
Resource Type: Accepted manuscript