journal article
Apr 01, 1990
Gene expression and parental dominance in hybrid plants
Abstract
ABSTRACT
Genomic imprinting, where the genes from one parent have different expression properties to those of the other parent, occurs in plants. It has potentially significant consequences because of the importance of hybrids in plant evolution and plant breeding, and provides a mechanism that can hide genetic variation for many generations. The study of nuclear organization shows that chromosome and genome position relates to imprinting in F1 hybrids, with peripheral genomes tending to be expressed preferentially. In some inbred, polyploid hybrids, such as Triticale (a wheat x rye hybrid), treatment with the demethylation agent azacytidine releases hidden variation, which was perhaps lost because of imprinting phenomena.
Genomic imprinting, where the genes from one parent have different expression properties to those of the other parent, occurs in plants. It has potentially significant consequences because of the importance of hybrids in plant evolution and plant breeding, and provides a mechanism that can hide genetic variation for many generations. The study of nuclear organization shows that chromosome and genome position relates to imprinting in F1 hybrids, with peripheral genomes tending to be expressed preferentially. In some inbred, polyploid hybrids, such as Triticale (a wheat x rye hybrid), treatment with the demethylation agent azacytidine releases hidden variation, which was perhaps lost because of imprinting phenomena.
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Metrics
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Citations
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References
Details
- Published
- Apr 01, 1990
- Vol/Issue
- 108(Supplement)
- Pages
- 21-28
- License
- View
Cite This Article
J. S. Heslop-Harrison (1990). Gene expression and parental dominance in hybrid plants. Development, 108(Supplement), 21-28. https://doi.org/10.1242/dev.108.supplement.21
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