Vernalization in cereals
نویسندگان
چکیده
How vernalization - exposure to a period of cold - induces flowering in Arabidopsis has been intensively investigated at the genetic and moleular levels. Recent papers, including one in BMC Plant Biology, shed light on changes in gene regulation that occur on vernalization in cereals.
منابع مشابه
ODDSOC2 is a MADS box floral repressor that is down-regulated by vernalization in temperate cereals.
In temperate cereals, such as wheat (Triticum aestivum) and barley (Hordeum vulgare), the transition to reproductive development can be accelerated by prolonged exposure to cold (vernalization). We examined the role of the grass-specific MADS box gene ODDSOC2 (OS2) in the vernalization response in cereals. The barley OS2 gene (HvOS2) is expressed in leaves and shoot apices but is repressed by v...
متن کاملEvaluation of gene expression changes of miR156 and miR172 and their targeted genes (AP2 & SPL3; vernalization factors) in two bread wheat (Triticum aestivum L.) cultivars
Floral transition through vernalization has a large influence on cold tolerance and agronomic traits in winter cereals. It is now apparent that in many plants small RNAs play critical roles in determination of the flowering time. There is evidence suggesting that the miR156 and miR172 families play a key role in the flowering transition of plants. In this study, the expression of two temporally ...
متن کاملA Flowering Locus C Homolog Is a Vernalization-Regulated Repressor in Brachypodium and Is Cold Regulated in Wheat.
Winter cereals require prolonged cold to transition from vegetative to reproductive development. This process, referred to as vernalization, has been extensively studied in Arabidopsis (Arabidopsis thaliana). In Arabidopsis, a key flowering repressor called FLOWERING LOCUS C (FLC) quantitatively controls the vernalization requirement. By contrast, in cereals, the vernalization response is mainl...
متن کاملTaVRT-1, a putative transcription factor associated with vegetative to reproductive transition in cereals.
The molecular genetics of vernalization, defined as the promotion of flowering by cold treatment, is still poorly understood in cereals. To better understand this mechanism, we cloned and characterized a gene that we named TaVRT-1 (wheat [Triticum aestivum] vegetative to reproductive transition-1). Molecular and sequence analyses indicated that this gene encodes a protein homologous to the MADS...
متن کاملGoldacre Paper The central role of the VERNALIZATION1 gene in the vernalization response of cereals
Many varieties of wheat (Triticum spp.) and barley (Hordeum vulgare L.) require prolonged exposure to cold during winter in order to flower (vernalization). In these cereals, vernalization-induced flowering is controlled by the VERNALIZATION1 (VRN1) gene. VRN1 is a promoter of flowering that is activated by low temperatures. VRN1 transcript levels increase graduallyduringvernalization,with long...
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ورودعنوان ژورنال:
- Journal of Biology
دوره 8 شماره
صفحات -
تاریخ انتشار 2009