A conserved role of SHORT VEGETATIVE PHASE (SVP) in controlling flowering time of Brassica plants

Jeong Hwan Lee; Soo Hyun Park; Jong Seob Lee; Ji Hoon Ahn

doi:10.1016/j.bbaexp.2007.05.001

A conserved role of SHORT VEGETATIVE PHASE (SVP) in controlling flowering time of Brassica plants

Jeong Hwan Lee, Soo Hyun Park, Jong Seob Lee, Ji Hoon Ahn

Department of Life Sciences

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

The control of flowering time in Brassica plants is an important approach for improving productivity, as vegetative tissues are not produced after the floral transition in Brassica plants. In order to determine the feasibility of modulating flowering time in Chinese cabbage plants, genes homologous to Arabidopsis SHORT VEGETATIVE PHASE (AtSVP) were isolated from spring-type and fall-type cultivars of Chinese cabbage plants, and their functions were determined. Their deduced amino acid sequences were 91-93% identical with that of AtSVP. The expression of BcSVP was ubiquitously detected, and was unaffected by vernalization. Constitutive BcSVP expression induced late flowering with additional floral defects. This delayed flowering was attributed to the repression of FLOWERING LOCUS T (FT) and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1). BcSVP expression under the control of the AtSVP promoter also resulted in the complementation of the svp mutation in Arabidopsis. These results indicate that BcSVP is a functional equivalent of AtSVP and also suggest that BcSVP may prove useful for the genetic manipulation of flowering time in Brassica plants.

Original language	English
Pages (from-to)	455-461
Number of pages	7
Journal	Biochimica et Biophysica Acta - Gene Structure and Expression
Volume	1769
Issue number	7-8
DOIs	https://doi.org/10.1016/j.bbaexp.2007.05.001
Publication status	Published - 2007 Jul

Keywords

BcSVP
Chinese cabbage
Floral repressor
Flowering time
Genetic manipulation
Vernalization

ASJC Scopus subject areas

Structural Biology
Biophysics
Biochemistry
Genetics

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10.1016/j.bbaexp.2007.05.001

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title = "A conserved role of SHORT VEGETATIVE PHASE (SVP) in controlling flowering time of Brassica plants",

abstract = "The control of flowering time in Brassica plants is an important approach for improving productivity, as vegetative tissues are not produced after the floral transition in Brassica plants. In order to determine the feasibility of modulating flowering time in Chinese cabbage plants, genes homologous to Arabidopsis SHORT VEGETATIVE PHASE (AtSVP) were isolated from spring-type and fall-type cultivars of Chinese cabbage plants, and their functions were determined. Their deduced amino acid sequences were 91-93% identical with that of AtSVP. The expression of BcSVP was ubiquitously detected, and was unaffected by vernalization. Constitutive BcSVP expression induced late flowering with additional floral defects. This delayed flowering was attributed to the repression of FLOWERING LOCUS T (FT) and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1). BcSVP expression under the control of the AtSVP promoter also resulted in the complementation of the svp mutation in Arabidopsis. These results indicate that BcSVP is a functional equivalent of AtSVP and also suggest that BcSVP may prove useful for the genetic manipulation of flowering time in Brassica plants.",

keywords = "BcSVP, Chinese cabbage, Floral repressor, Flowering time, Genetic manipulation, Vernalization",

author = "Lee, {Jeong Hwan} and Park, {Soo Hyun} and Lee, {Jong Seob} and Ahn, {Ji Hoon}",

note = "Funding Information: We thank H. Sommer and the Arabidopsis stock center for providing the seeds used in this study. We would also like to thank Y.Y. Chung and Y.H. Lee for the RNA material and helpful discussion, respectively. J.H.L. was supported by a grant from the Plant Signaling Network Research Center and by a grant from Korea University. S.H.P. was supported by the BK21 program. Financial support was provided by the Crop Functional Genomics Center of the 21C Frontier Program (J.S.L.), and by the BioGreen 21 Program and Korea University Grant (J.H.A.). ",

year = "2007",

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AU - Park, Soo Hyun

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AU - Ahn, Ji Hoon

N1 - Funding Information: We thank H. Sommer and the Arabidopsis stock center for providing the seeds used in this study. We would also like to thank Y.Y. Chung and Y.H. Lee for the RNA material and helpful discussion, respectively. J.H.L. was supported by a grant from the Plant Signaling Network Research Center and by a grant from Korea University. S.H.P. was supported by the BK21 program. Financial support was provided by the Crop Functional Genomics Center of the 21C Frontier Program (J.S.L.), and by the BioGreen 21 Program and Korea University Grant (J.H.A.).

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N2 - The control of flowering time in Brassica plants is an important approach for improving productivity, as vegetative tissues are not produced after the floral transition in Brassica plants. In order to determine the feasibility of modulating flowering time in Chinese cabbage plants, genes homologous to Arabidopsis SHORT VEGETATIVE PHASE (AtSVP) were isolated from spring-type and fall-type cultivars of Chinese cabbage plants, and their functions were determined. Their deduced amino acid sequences were 91-93% identical with that of AtSVP. The expression of BcSVP was ubiquitously detected, and was unaffected by vernalization. Constitutive BcSVP expression induced late flowering with additional floral defects. This delayed flowering was attributed to the repression of FLOWERING LOCUS T (FT) and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1). BcSVP expression under the control of the AtSVP promoter also resulted in the complementation of the svp mutation in Arabidopsis. These results indicate that BcSVP is a functional equivalent of AtSVP and also suggest that BcSVP may prove useful for the genetic manipulation of flowering time in Brassica plants.

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KW - Floral repressor

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KW - Genetic manipulation

KW - Vernalization

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IS - 7-8

ER -

A conserved role of SHORT VEGETATIVE PHASE (SVP) in controlling flowering time of Brassica plants

Abstract

Keywords

ASJC Scopus subject areas

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