Promoter P PSP1-5-BnPSP-1 From Ramie (Boehmeria nivea L. Gaud.) Can Drive Phloem-Specific GUS Expression in Arabidopsis thaliana.
Front Genet
; 11: 553265, 2020.
Article
em En
| MEDLINE
| ID: mdl-33391335
ABSTRACT
Isolation of phloem-specific promoters is one of the basic conditions for improving the fiber development and resistance of ramie phloem using genetic engineering. In this study, we isolated a ramie endogenous promoter (named P PSP1 -BnPSP-1) and analyzed the function of its truncated fragments in Arabidopsis. The results show that P PSP1 -BnPSP-1 can drive the GUS reporter gene to be specifically expressed in the veins of Arabidopsis. After hormone and simulated drought treatment of the independent Arabidopsis lines carrying P PSP1 -BnPSP-1 and its truncated fragments, only P PSP1-5-BnPSP-1 (-600 to -1 bp region of P PSP1 -BnPSP-1) is stably expressed and exhibits phloem specificity. Our findings suggest that P PSP1-5-BnPSP-1 can be used as a phloem specific promoter for further research.
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Coleções:
01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article