Isolation of two highly active soybean (Glycine max (L.) Merr.) promoters and their characterization using a new automated image collection and analysis system

A novel automated image collection and analysis system was used to compare two new soybean (Glycine max (L.) Merr.) promoters with the cauliflower mosaic virus 35S (CaMV35S) promoter, which was used as an expression standard. For expression comparisons, various permutations of a soybean polyubiquiti...

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Veröffentlicht in:Plant cell reports 2007-09, Vol.26 (9), p.1501-1509
Hauptverfasser: CHIERA, Joseph M, BOUCHARD, Robert A, DORSEY, Summer L, PARK, Euiho, BUENROSTRO-NAVA, Marco T, LING, Peter P, FINER, John J
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container_end_page 1509
container_issue 9
container_start_page 1501
container_title Plant cell reports
container_volume 26
creator CHIERA, Joseph M
BOUCHARD, Robert A
DORSEY, Summer L
PARK, Euiho
BUENROSTRO-NAVA, Marco T
LING, Peter P
FINER, John J
description A novel automated image collection and analysis system was used to compare two new soybean (Glycine max (L.) Merr.) promoters with the cauliflower mosaic virus 35S (CaMV35S) promoter, which was used as an expression standard. For expression comparisons, various permutations of a soybean polyubiquitin (Gmubi) promoter, a soybean heat shock protein 90-like (GmHSP90L) promoter and the CaMV35S promoter were placed upstream of a green fluorescent protein (gfp) gene. DNA constructs were introduced via particle bombardment into excised cotyledons of germinating lima bean (Phaseolus lunatus L.) seeds, which were arranged in Petri dishes for automated image capture and image analysis. The automated system allowed monitoring and quantification of gfp gene expression in the same piece of tissue over time. The Gmubi promoter, with its intronic region intact, showed the highest expression that was over five times stronger than the CaMV35S promoter. When an intronic region was removed from the Gmubi promoter, GFP expression was reduced, but was still over two times greater than with the CaMV35S promoter. The full-length soybean GmHSP90L promoter was four times stronger than the CaMV35S promoter. Truncation of the GmHSP90L promoter resulted in stepwise decreases in promoter strength, which appear to correspond to removal of regulatory elements. Automated image capture and analysis allowed the rapid and efficient evaluation of these new promoters.
doi_str_mv 10.1007/s00299-007-0359-y
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Merr.) promoters and their characterization using a new automated image collection and analysis system</atitle><jtitle>Plant cell reports</jtitle><addtitle>Plant Cell Rep</addtitle><date>2007-09-01</date><risdate>2007</risdate><volume>26</volume><issue>9</issue><spage>1501</spage><epage>1509</epage><pages>1501-1509</pages><issn>0721-7714</issn><eissn>1432-203X</eissn><coden>PCRPD8</coden><abstract>A novel automated image collection and analysis system was used to compare two new soybean (Glycine max (L.) Merr.) promoters with the cauliflower mosaic virus 35S (CaMV35S) promoter, which was used as an expression standard. For expression comparisons, various permutations of a soybean polyubiquitin (Gmubi) promoter, a soybean heat shock protein 90-like (GmHSP90L) promoter and the CaMV35S promoter were placed upstream of a green fluorescent protein (gfp) gene. DNA constructs were introduced via particle bombardment into excised cotyledons of germinating lima bean (Phaseolus lunatus L.) seeds, which were arranged in Petri dishes for automated image capture and image analysis. The automated system allowed monitoring and quantification of gfp gene expression in the same piece of tissue over time. The Gmubi promoter, with its intronic region intact, showed the highest expression that was over five times stronger than the CaMV35S promoter. When an intronic region was removed from the Gmubi promoter, GFP expression was reduced, but was still over two times greater than with the CaMV35S promoter. The full-length soybean GmHSP90L promoter was four times stronger than the CaMV35S promoter. Truncation of the GmHSP90L promoter resulted in stepwise decreases in promoter strength, which appear to correspond to removal of regulatory elements. 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subjects Biological and medical sciences
Biotechnology
Cauliflower mosaic virus
Caulimovirus
Cotyledons
Fluorescence
Fundamental and applied biological sciences. Psychology
Gene expression
Glycine max
Glycine max - genetics
Green fluorescent protein
Heat shock proteins
HSP90 Heat-Shock Proteins - genetics
Hsp90 protein
Image analysis
Image processing
Image Processing, Computer-Assisted - methods
Lima
Particle bombardment
Permutations
Phaseolus lunatus
Promoter Regions, Genetic - genetics
Promoters
Proteins
Regulatory sequences
Seeds
Soybeans
Ubiquitin - genetics
title Isolation of two highly active soybean (Glycine max (L.) Merr.) promoters and their characterization using a new automated image collection and analysis system
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