Journal
PLANT CELL
Volume 22, Issue 7, Pages 2105-2112Publisher
AMER SOC PLANT BIOLOGISTS
DOI: 10.1105/tpc.110.076133
Keywords
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Funding
- National Science Foundation [DBI 0733857]
- Centre National de la Recherche Scientifique
- Universite Paris-Diderot
- Association pour la Recherche contre le cancer
- Foundation pour la Recherche medicale
- Institut Universitaire de France
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Heterosis refers to the phenomenon that progeny of diverse varieties of a species or crosses between species exhibit greater biomass, speed of development, and fertility than both parents. Various models have been posited to explain heterosis, including dominance, overdominance, and pseudo-overdominance. In this Perspective, we consider that it might be useful to the field to abandon these terms that by their nature constrain data interpretation and instead attempt a progression to a quantitative genetic framework involving interactions in hierarchical networks. While we do not provide a comprehensive model to explain the phenomenology of heterosis, we provide the details of what needs to be explained and a direction of pursuit that we feel should be fruitful.
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