Ecological, (epi)genetic and physiological aspects of bet-hedging in angiosperms

dc.creatorGianella, M.
dc.creatorBradford, K.J.
dc.creatorGuzzon, F.
dc.date2021-01-23T01:10:14Z
dc.date2021-01-23T01:10:14Z
dc.date2021
dc.date.accessioned2023-07-17T20:06:42Z
dc.date.available2023-07-17T20:06:42Z
dc.identifierhttps://hdl.handle.net/10883/21139
dc.identifier10.1007/s00497-020-00402-z
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7512925
dc.descriptionKey message: Bet-hedging is a complex evolutionary strategy involving morphological, eco-physiological, (epi)genetic and population dynamics aspects. We review these aspects in flowering plants and propose further research needed for this topic. Bet-hedging is an evolutionary strategy that reduces the temporal variance in fitness at the expense of a lowered arithmetic mean fitness. It has evolved in organisms subjected to variable cues from the external environment, be they abiotic or biotic stresses such as irregular rainfall or predation. In flowering plants, bet-hedging is exhibited by hundreds of species and is mainly exerted by reproductive organs, in particular seeds but also embryos and fruits. The main example of bet-hedging in angiosperms is diaspore heteromorphism in which the same individual produces different seed/fruit morphs in terms of morphology, dormancy, eco-physiology and/or tolerance to biotic and abiotic stresses in order to ‘hedge its bets’ in unpredictable environments. The objective of this review is to provide a comprehensive overview of the ecological, genetic, epigenetic and physiological aspects involved in shaping bet-hedging strategies, and how these can affect population dynamics. We identify several open research questions about bet-hedging strategies in plants: 1) understanding ecological trade-offs among different traits; 2) producing more comprehensive phylogenetic analyses to understand the diffusion and evolutionary implications of this strategy; 3) clarifying epigenetic mechanisms related to bet-hedging and plant responses to environmental cues; and 4) applying multi-omics approaches to study bet-hedging at different levels of detail. Clarifying those aspects of bet-hedging will deepen our understanding of this fascinating evolutionary strategy.
dc.description21-36
dc.languageEnglish
dc.publisherSpringer
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dc.rightsOpen Access
dc.source1
dc.source34
dc.source2194-7953
dc.sourcePlant Reproduction
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectBet-Hedging
dc.subjectHeteromorphism
dc.subjectFitness
dc.subjectEco-Physiology
dc.subjectVIGOUR
dc.subjectSEED DORMANCY
dc.subjectPHYSIOLOGY
dc.subjectSOIL SEED BANKS
dc.titleEcological, (epi)genetic and physiological aspects of bet-hedging in angiosperms
dc.typeArticle
dc.typePublished Version
dc.coverageGermany


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