Heterologous Expression of the Chrysanthemum R2R3-MYB Transcription Factor CmMYB2 Enhances Drought and Salinity Tolerance, Increases Hypersensitivity to ABA and Delays Flowering in Arabidopsis thaliana

2011 ◽  
Vol 51 (2) ◽  
pp. 160-173 ◽  
Author(s):  
Hong Shan ◽  
Sumei Chen ◽  
Jiafu Jiang ◽  
Fadi Chen ◽  
Yu Chen ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Transcription Factor ◽  
Heterologous Expression ◽  
Salinity Tolerance ◽  
Myb Transcription Factor ◽  
R2r3 Myb

Ectopic expression of a R2R3 MYB transcription factor of dove tree (Davidia involucrata) aggravates seed abortion in Arabidopsis thaliana

2020 ◽  
Vol 47 (5) ◽  
pp. 454
Author(s):  
Jian Li ◽  
Tian Chen ◽  
Fengzhen Huang ◽  
Penghui Dai ◽  
Fuxiang Cao ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Transcription Factor ◽  
Transgenic Plants ◽  
Ectopic Expression ◽  
Myb Transcription Factor ◽  
Seed Abortion ◽  
Transgenic Seeds ◽  
Genes Encoding ◽  
Colour Changes ◽  
R2r3 Myb

Serious seed abortion of dove tree (Davidia involucrate Baill.) is one of the critical factors leading to the low fecundity of this species. Seed abortion is a complicated process and various factors have been verified to synergistically determine the fate of seeds. To reveal the mechanism of seed abortion in D. involucrata, we performed transcriptome analysis in normal and abortive seeds of D. involucrata. According to the transcriptome data, we noticed that most of the genes encoding a MYB transcription factor were predominantly expressed in abortive seeds. Among these, a gene named DiMYB1 was selected and its function was validated in this study. Overexpression of DiMYB1 resulted in obviously reduced viability of transgenic seeds and seedlings, and caused a significantly higher seed abortion rate. The vegetative growth of transgenic plants was hindered, resulting in an earlier flowering time. In addition, colour changes occurred in transgenic plants. Some transgenic sprouts, stems and pods appeared purple instead of green in colour. Our finding demonstrated that DiMYB1 participates in multiple plant developmental processes, especially in seed development in Arabidopsis thaliana (L.) Heynh., which indicated the similar role of this gene in D. involucrata.

MYB 56 Encoding a R2R3 MYB Transcription Factor Regulates Seed Size in Arabidopsis thaliana

2013 ◽  
Vol 55 (11) ◽  
pp. 1166-1178 ◽  
Author(s):  
Yanjie Zhang ◽  
Wanqi Liang ◽  
Jianxin Shi ◽  
Jie Xu ◽  
Dabing Zhang
Keyword(s):  
Arabidopsis Thaliana ◽  
Transcription Factor ◽  
Seed Size ◽  
Myb Transcription Factor ◽  
R2r3 Myb

scholarly journals AtMYB61, an R2R3-MYB Transcription Factor Controlling Stomatal Aperture in Arabidopsis thaliana

2005 ◽  
Vol 15 (13) ◽  
pp. 1201-1206 ◽  
Author(s):  
Yun-Kuan Liang ◽  
Christian Dubos ◽  
Ian C. Dodd ◽  
Geoffrey H. Holroyd ◽  
Alistair M. Hetherington ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Transcription Factor ◽  
Stomatal Aperture ◽  
Myb Transcription Factor ◽  
R2r3 Myb
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