Flowering-time genes modulate meristem determinacy and growth form in Arabidopsis thaliana
نویسندگان
چکیده
منابع مشابه
Flowering and determinacy in Arabidopsis.
Meristems provide new cells to produce organs throughout the life of a plant, and their continuous activity depends on regulatory genes that balance the proliferation of meristem cells with their recruitment to organogenesis. During flower development, this balance is shifted towards organogenesis, causing the meristem to terminate after producing a genetically determined number of organs. In A...
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characterized (Koornneef et al. 1991, 1998b, Lee et al, 1993, Araki and Komeda 1993, Clarke and Dean 1994, Clarke et al. 1995, Eimert et al. 1995, Zagotta et al. 1992, Sung et al. 1992, Martinez-Zapater et al. 1994, Sanda and Amasino 1996a, Amasino 1996, Levy and Dean 1998). Although they caused similar mutant phenotypes, diflbrent late-flowering mutants characterized responded to environmental...
متن کاملSpecification of Arabidopsis floral meristem identity by repression of flowering time genes.
Flowering plants produce floral meristems in response to intrinsic and extrinsic flowering inductive signals. In Arabidopsis, the floral meristem identity genes LEAFY (LFY) and APETALA1 (AP1) are activated to play a pivotal role in specifying floral meristems during floral transition. We show here that the emerging floral meristems require AP1 to partly specify their floral identities by direct...
متن کاملA latitudinal cline in flowering time in Arabidopsis thaliana modulated by the flowering time gene FRIGIDA.
A latitudinal cline in flowering time in accessions of Arabidopsis thaliana has been widely predicted because the environmental cues that promote flowering vary systematically with latitude, but evidence for such clines has been lacking. Here, we report evidence of a significant latitudinal cline in flowering time among 70 Northern European and Mediterranean ecotypes when grown under ecological...
متن کاملGenetic Architecture of Flowering-Time Variation in Arabidopsis thaliana
The onset of flowering is an important adaptive trait in plants. The small ephemeral species Arabidopsis thaliana grows under a wide range of temperature and day-length conditions across much of the Northern hemisphere, and a number of flowering-time loci that vary between different accessions have been identified before. However, only few studies have addressed the species-wide genetic archite...
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ژورنال
عنوان ژورنال: Nature Genetics
سال: 2008
ISSN: 1061-4036,1546-1718
DOI: 10.1038/ng.253