A Pair of Related Genes with Antagonistic Roles in Mediating Flowering Signals-Reference-Cited by-同舟云学术

A Pair of Related Genes with Antagonistic Roles in Mediating Flowering Signals

Published:1999-12-03 Issue:5446 Volume:286 Page:1960-1962
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Kobayashi Yasushi¹,Kaya Hidetaka¹,Goto Koji²,Iwabuchi Masaki¹,Araki Takashi¹

Affiliation:

1. Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.

2. Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.

Abstract

Flowering in Arabidopsis is promoted via several interacting pathways. A photoperiod-dependent pathway relays signals from photoreceptors to a transcription factor gene, CONSTANS ( CO ), which activates downstream meristem identity genes such as LEAFY ( LFY ). FT , together with LFY , promotes flowering and is positively regulated by CO . Loss of FT causes delay in flowering, whereas overexpression of FT results in precocious flowering independent of CO or photoperiod. FT acts in part downstream of CO and mediates signals for flowering in an antagonistic manner with its homologous gene, TERMINAL FLOWER1 ( TFL1 ).

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference31 articles.

1. The Transition to Flowering

2. GENETIC CONTROL OF FLOWERING TIME IN ARABIDOPSIS

3. Ruiz-Garcı́a L., et al., Plant Cell 9, 1921 (1997).

4. A T-DNA insertion line (vTAAT26C51) with a 75.8-kb deletion in the FT-FAS1 region was identified. The bacterial artificial chromosome (BAC) clone F5I14 (GenBank accession number ) was found to cover the deleted region. One candidate gene ( F5I14.3 ) with similarity to TFL1 (4) was examined in six ft alleles including three new ones ( ft-4 ft-5 and ft-6 from ecotype Nossen) [this study and (16)] and a nucleotide substitution was found in all cases. The entire F5I14.3 was deleted in vTAAT26C51. On the basis of these results we concluded that F5I14.3 is the FT gene. Sequences of cDNA were deposited in GenBank (accession numbers and ).

5. Inflorescence Commitment and Architecture in Arabidopsis

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