Construction of hybrid promoters of caulimoviruses and analysis of their activity in transgenic plants

Construction of hybrid promoters of caulimoviruses and analysis of their activity in transgenic... By the techniques of DNA shuffling, PCR, and restriction-ligation, chimeric forms of cauliflower (Brassica oleracea) mosaic virus (CaMV), dahlia (Dahlia pinnata) mosaic virus (DMV), and carnation (Dianthus caryophillus) etching ring virus (CERV) promoters were obtained at various combinations. Twelve chimeric promoters were cloned into pCambia binary vectors comprising the reporter GUS gene, and their activities in transgenic tobacco (Nicotiana tabacum) plants were determined fluorimetrically. 35S promoter and those of DMV (442 bp) and CERV (371 and 501 bp) were used as controls. Seven of analyzed promoters displayed higher and seven promoters lower activity in transgenic tobacco plants than 35S promoter. The highest activity was characteristic of natural DMV promoter, and the least one — natural CERV promoter 501 bp in size. The CERV promoter 371 bp in size was approximately similar in strength to 35S promoter. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Construction of hybrid promoters of caulimoviruses and analysis of their activity in transgenic plants

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Publisher
Springer Journals
Copyright
Copyright © 2010 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Sciences ; Plant Physiology
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443710040187
Publisher site
See Article on Publisher Site

Abstract

By the techniques of DNA shuffling, PCR, and restriction-ligation, chimeric forms of cauliflower (Brassica oleracea) mosaic virus (CaMV), dahlia (Dahlia pinnata) mosaic virus (DMV), and carnation (Dianthus caryophillus) etching ring virus (CERV) promoters were obtained at various combinations. Twelve chimeric promoters were cloned into pCambia binary vectors comprising the reporter GUS gene, and their activities in transgenic tobacco (Nicotiana tabacum) plants were determined fluorimetrically. 35S promoter and those of DMV (442 bp) and CERV (371 and 501 bp) were used as controls. Seven of analyzed promoters displayed higher and seven promoters lower activity in transgenic tobacco plants than 35S promoter. The highest activity was characteristic of natural DMV promoter, and the least one — natural CERV promoter 501 bp in size. The CERV promoter 371 bp in size was approximately similar in strength to 35S promoter.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Jul 7, 2010

References

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