Vernalization requirement and vernalization response
Summary :
Table of Contents
- Introduction.
- Vernalization requirement evolved independently in temperate cereals.
- Vernalization response.
- Arabidopsis vernalization respons.
- Vernalization response in species other than Arabidopsis.
- Connecting cold to vernalization.
- Evolution of vernalization.
- Short-day vernalization.
- Conclusion.
Abstract
The major loci controlling vernalization requirement in the diploid wheat Triticum monococcum are VRN1 and VRN2 (in cereals the vernalization, VRN, designation applies to genes conferring a vernalization requirement and differs from Arabidopsis genes of the same name that are involved in vernalization response). These two genes have strong epistatic interactions and are likely to be part of the same regulatory pathway. VRN1 is located on wheat chromosome 5. Genes controlling vernalization requirement in barley and rye map to syntenic regions, as judged by their co-segregation with common markers, indicating that related genes control vernalization requirement in these different cereals.
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