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  • Title: Ancient Memories of Seeds: ABA-Dependent Growth Arrest and Reserve Accumulation.
    Author: Nonogaki H, Nishiyama E, Ohshima K, Nonogaki M.
    Journal: Trends Genet; 2020 Jul; 36(7):464-473. PubMed ID: 32466870.
    Abstract:
    Genetic studies of seed maturation regulators, combining transcriptomics and network analysis, suggest the significance of genetic diversification for maturation programs, particularly in seed plants. By contrast, analogs of the maturation programs, such as dormancy and desiccation tolerance, are also found in non-seed plants. It is thus conceivable that seeds recalled or renovated ancient programs of stress-induced growth arrest that were already present in ferns, bryophytes, and possibly in algae. This opinion article discusses the origins and genetic diversification of the abscisic acid (ABA)-dependent seed maturation programs by addressing questions provoked by recent findings about the DELAY OF GERMINATION1 (DOG1) family proteins, which regulate reserve accumulation, dormancy, and/or desiccation tolerance in seeds in a gene-specific or redundant manner.
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