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Transformation of Chlamydomonas reinhardtii CW-15 with the Hygromycin Phosphotransferase Gene as a Selectable Marker

Transformation of Chlamydomonas reinhardtii CW-15 with the Hygromycin Phosphotransferase Gene as... To transform Chlamydomonas reinhardtiiDang. cells, plasmid pCTVHyg was constructed with the use of theEscherichia colihygromycin phosphotransferase gene (hpt) controlled by the SV40 early promoter. Cells of the CW-15 mutant strain were transformed by electroporation, with the yield reaching 103 hygromycin-resistant (HygR) clones per 106 recipient cells. The exogenous DNA integrated in the Ch. reinhardtii nuclear genome showed stable transmission for approximately 350 cell generations, while hygromycin resistance was expressed as an unstable character. Codon usage was compared for the hptgene and Ch. reinhardtiinuclear genes. The results testified that codon usage bias, which is characteristic of Ch. reinhardtii, is not the major factor affecting foreign gene expression. The advantages of the selective system for studying Ch. reinhardtii transformation with heterologous genes are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Transformation of Chlamydomonas reinhardtii CW-15 with the Hygromycin Phosphotransferase Gene as a Selectable Marker

Russian Journal of Genetics , Volume 38 (9) – Oct 13, 2004

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References (50)

Publisher
Springer Journals
Copyright
Copyright © 2002 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
DOI
10.1023/A:1020279429009
Publisher site
See Article on Publisher Site

Abstract

To transform Chlamydomonas reinhardtiiDang. cells, plasmid pCTVHyg was constructed with the use of theEscherichia colihygromycin phosphotransferase gene (hpt) controlled by the SV40 early promoter. Cells of the CW-15 mutant strain were transformed by electroporation, with the yield reaching 103 hygromycin-resistant (HygR) clones per 106 recipient cells. The exogenous DNA integrated in the Ch. reinhardtii nuclear genome showed stable transmission for approximately 350 cell generations, while hygromycin resistance was expressed as an unstable character. Codon usage was compared for the hptgene and Ch. reinhardtiinuclear genes. The results testified that codon usage bias, which is characteristic of Ch. reinhardtii, is not the major factor affecting foreign gene expression. The advantages of the selective system for studying Ch. reinhardtii transformation with heterologous genes are discussed.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Oct 13, 2004

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