The fundamental concept for wheat vernalization response is that lower temperatures in the early development stage can minimize the number of leaves emerged during that phase and result in a lower final leaf number.
The advanced of wheat QTLs have been introduced as follows thirteen aspects: agronomic traits, plant model, quality traits, vernalization response, drought resistance, diseases and pest resistance, etc. That could supply a lot of information for wheat genetics and breeding and genome in our country. At the end, the result of QTLs of water use efficiency and related traits of wheat carried out by us was introduced in this paper.
The level of FLC determines the extent of the vernalization response in the promotion of flowering and there is a quantitative relationship between the duration of cold treatment and the extent of down_regulation of FLC activity.
In this study, three candidate genes for vernalization response genes in perennial ryegrass were identified based on DNA sequence homology to TmVRN1 and TmVRN2 of diploid wheat (Triticum monococcum), and Hd1 of rice (Oryza sativa).
Vernalization Response in Perennial Ryegrass (Lolium perenne L.) Involves Orthologues of Diploid Wheat (Triticum monococcum) VRN
Segregation analyses of the F2 populations for time to anthesis indicated the presence of different vernalization response genes.
Anthesis and maturity times were controlled by both vernalization response and earliness per se genes, mainly acting additively.
These results validate the two-gene epistatic model for vernalization response under long-day conditions.
Finalleaf number on main stem could be a reliable measure for wheat vernalization response. Finalleaf number decreases with increase of vernalization duration until reaching a plateau. Six is the base leaf number which implies that final leaf number can not be further decreased through vernalization treatment. Accumulated plant age, expressed as leaf stage,enables attainment of vernalization insensitivity, independent of, or in combination with vernalization treatment. The vernalization...
Finalleaf number on main stem could be a reliable measure for wheat vernalization response. Finalleaf number decreases with increase of vernalization duration until reaching a plateau. Six is the base leaf number which implies that final leaf number can not be further decreased through vernalization treatment. Accumulated plant age, expressed as leaf stage,enables attainment of vernalization insensitivity, independent of, or in combination with vernalization treatment. The vernalization responsiveness of a cultivar can be characterized through two parameters, i, e. , a, the maximum "changeable number of leaves" by vernalization treatment, andβ, the "decrease rate of leaf number" by each day of vernalization treatment. The fundamental concept for wheat vernalization response is that lower temperatures in the early development stage can minimize the number of leaves emerged during that phase and result in a lower final leaf number.
The advanced of wheat QTLs have been introduced as follows thirteen aspects: agronomic traits, plant model, quality traits, vernalization response, drought resistance, diseases and pest resistance, etc. That could supply a lot of information for wheat genetics and breeding and genome in our country. At the end, the result of QTLs of water use efficiency and related traits of wheat carried out by us was introduced in this paper.
The lately researches of the function of FLC in the process of vernalization are reviewed in this article on the basis of summarizing various pathways those promote flowering. The research in Arabidopsis shows that FLC may play a key role in the response to vernalization. It also plays an important role in the autonomous pathway. The level of FLC determines the extent of the vernalization response in the promotion of flowering and there is a quantitative relationship between the duration...
The lately researches of the function of FLC in the process of vernalization are reviewed in this article on the basis of summarizing various pathways those promote flowering. The research in Arabidopsis shows that FLC may play a key role in the response to vernalization. It also plays an important role in the autonomous pathway. The level of FLC determines the extent of the vernalization response in the promotion of flowering and there is a quantitative relationship between the duration of cold treatment and the extent of down_regulation of FLC activity. Longer cold treatment can reduce the level of FLC . Also demethylation can downregulate the expression of FLC . The series researches showed that vernalization may unlock the biosynthesis of GA by demethylating relational genes and promote flowering.
vernalization response
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