Logic regression has been recognized as a tool that can identify and model non-additive genetic interactions using Boolean logic groups. Logic regression, TASSEL-GLM and SAS-GLM were compared for analytical precision using a previously characterized model system to identify the best genetic model explaining epistatic interaction of vernalization-sensitivity in barley. A genetic model containing...

low temperature (lt) acclimation, phenological development and vernalization requirement are known to influence the expression of frost tolerance (ft) in winter cereals. a phenotypic study was undertaken to determine the interrelationship between developmental stages and ft in hardy winter wheat and rye cultivars acclimated under field condition in the cold and temperate regions of iran. winter...

Relating molecular variation to phenotypic diversity is a central goal in evolutionary biology. In Arabidopsis thaliana, FLOWERING LOCUS C (FLC) is a major determinant of variation in vernalization--the acceleration of flowering by prolonged cold. Here, through analysis of 1307 A. thaliana accessions, we identify five predominant FLC haplotypes defined by noncoding sequence variation. Genetic a...

The timing of the floral transition has significant consequences for reproductive success in plants. Plants gauge both environmental and endogenous signals before switching to reproductive development. Many temperate species only flower after they have experienced a prolonged period of cold, a process known as vernalization, which aligns flowering with the favourable conditions of spring. Consi...

Vernalization, the promotion of flowering by cold, involves Polycomb-mediated epigenetic silencing of FLOWERING LOCUS C (FLC). Cold progressively promotes cell-autonomous switching to a silenced state. Here, we used live-cell imaging of FLC-lacO to monitor changes in nuclear organization during vernalization. FLC-lacO alleles physically cluster during the cold and generally remain so after plan...

Sugar beet (Beta vulgaris) is a biennial plant that requires a cold period in order to induce flowering, a process called vernalization. The period of vernalization required to induce flowering can vary by genotype (between 90-120 days). Holding beets in cold storage (4C) at high humidity (95%) is expensive and labor intensive, requiring specialized equipment and multiple fungicide applications...