Recent discoveries in the field of epigenetics, the study of inheritance of traits that occur without changing the DNA sequence, have shown that chronological age in mammals correlates with epigenetic changes that accumulate during the lifetime of an individual.
In humans, this observation has led to the development of epigenetic clocks, which are now extensively used as biomarkers of aging.
The team's research showed experimentally that epigenetic clocks recapitulate known divergence times of intra-species phylogenetic or evolutionary trees in the self-fertilizing plant A. thaliana, a small plant in the mustard family, and the clonal seagrass Z. marina, which represent two major modes of plant reproduction.
with known pedigrees," said Robert Schmitz, UGA Foundation Professor in Plant Sciences, Lars G. Ljungdahl Distinguished Investigator in the department of genetics, and co-author on the study.were grown by single-seed descent for up to 32 generations from wild type exposed to different environments or from natural strains from distinct geographical origins.
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