The Role of Transcriptional Regulation in Hybrid Vigor

The genetic basis of hybrid vigor in plants remains largely unsolved but strong evidence suggests that variation in transcriptional regulation can explain many aspects of this phenomenon. Natural variation in transcriptional regulation is highly abundant in virtually all species and thus a potential...

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Bibliographic Details
Published in:Frontiers in plant science 2020-04, Vol.11, p.410-410
Main Authors: Botet, Ramon, Keurentjes, Joost J B
Format: Article
Language:English
Subjects:
breeding
gene expression
genetic regulation
heterosis
hybrid vigor
Plant Science
speciation
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Summary:The genetic basis of hybrid vigor in plants remains largely unsolved but strong evidence suggests that variation in transcriptional regulation can explain many aspects of this phenomenon. Natural variation in transcriptional regulation is highly abundant in virtually all species and thus a potential source of heterotic variability. Allele Specific Expression (ASE), which is tightly linked to parent of origin effects and modulated by complex interactions and , is generally considered to play a key role in explaining the differences between hybrids and parental lines. Here we discuss the recent developments in elucidating the role of transcriptional variation in a number of aspects of hybrid vigor, thereby bridging old paradigms and hypotheses with contemporary research in various species.
ISSN:1664-462X
1664-462X
DOI:10.3389/fpls.2020.00410