Morphological changes in Ipomoea nil using chimeric repressors of Arabidopsis TCP3 and TCP5

Michiyuki Ono, Satomi Hiyama, Yohei Higuchi, Hiroshi Kamada, Eiji Nitasaka, Tomotsugu Koyama, Nobutaka Mitsuda, Masaru Ohme-Takagi, Kimiyo Sage-Ono

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Chimeric REpressor gene-Silencing Technology (CRES-T) is a reverse genetic method that converts transcriptional factors (TFs) to chimeric repressors by fusion with an ethylene-responsive element-binding factor (ERF)- associated amphiphilic repression domain. The plant expressing chimeric repressor is expected to show loss-of-function phenotype of the original TF even in the presence of other functionally redundant TFs. We used the CRES-T system for modification of flower shape in transgenic Ipomoea nil (formally Pharbitis nil). I. nil is emerging as a model plant for ornamental flowers because it has produced a wide variety of historical mutants, and it has been chosen to be a part of the National BioResource Project in Japan. We used cDNAs of TFs of Arabidopsis thaliana with the CRES-T system because A. thaliana TFs are well characterized compared with I. nil TFs. For this study, we selected two TCP (TEOSINTE BRANCHED1, CYCLOIDEA, and PCF) TFs, TCP3 and TCP5, because overexpression of these chimeric repressors TCP3SRDX and TCP5SRDX causes severe morphological alterations in A. thaliana. We found that these chimeric repressors cause morphological alterations, an undeveloped corolla and wavy petals in I. nil. In addition, the sympetalous corolla was easily disrupted to form choripetalous corolla. Although several TCP3SRDX transgenic ornamental flowers were reported, typical sympetalous flowers like I. nil have not yet been presented.

Original languageEnglish
Pages (from-to)457-463
Number of pages7
JournalPlant Biotechnology
Volume29
Issue number5
DOIs
Publication statusPublished - Dec 1 2012

Fingerprint

Ipomoea nil
Arabidopsis
transcription factors
Gene Silencing
corolla
gene silencing
flowers
Technology
Arabidopsis thaliana
Reverse Genetics
genetically modified organisms
Zea
Zea mays
ornamental plants
Japan
Complementary DNA
ethylene
Phenotype
phenotype
mutants

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science
  • Plant Science

Cite this

Morphological changes in Ipomoea nil using chimeric repressors of Arabidopsis TCP3 and TCP5. / Ono, Michiyuki; Hiyama, Satomi; Higuchi, Yohei; Kamada, Hiroshi; Nitasaka, Eiji; Koyama, Tomotsugu; Mitsuda, Nobutaka; Ohme-Takagi, Masaru; Sage-Ono, Kimiyo.

In: Plant Biotechnology, Vol. 29, No. 5, 01.12.2012, p. 457-463.

Research output: Contribution to journalArticle

Ono, M, Hiyama, S, Higuchi, Y, Kamada, H, Nitasaka, E, Koyama, T, Mitsuda, N, Ohme-Takagi, M & Sage-Ono, K 2012, 'Morphological changes in Ipomoea nil using chimeric repressors of Arabidopsis TCP3 and TCP5', Plant Biotechnology, vol. 29, no. 5, pp. 457-463. https://doi.org/10.5511/plantbiotechnology.12.1010a
Ono, Michiyuki ; Hiyama, Satomi ; Higuchi, Yohei ; Kamada, Hiroshi ; Nitasaka, Eiji ; Koyama, Tomotsugu ; Mitsuda, Nobutaka ; Ohme-Takagi, Masaru ; Sage-Ono, Kimiyo. / Morphological changes in Ipomoea nil using chimeric repressors of Arabidopsis TCP3 and TCP5. In: Plant Biotechnology. 2012 ; Vol. 29, No. 5. pp. 457-463.
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