TAL effector nucleases induce mutations at a pre-selected location in the genome of primary barley transformants

TAL effector nucleases induce mutations at a pre-selected location in the genome of primary... Transcription activator-like effector nucleases (TALENs) enable targeted mutagenesis in a variety of organisms. The primary advantage of TALENs over other sequence-specific nucleases, namely zinc finger nucleases and meganucleases, lies in their ease of assembly, reliability of function, and their broad targeting range. Here we report the assembly of several TALENs for a specific genomic locus in barley. The cleavage activity of individual TALENs was first tested in vivo using a yeast-based, single-strand annealing assay. The most efficient TALEN was then selected for barley transformation. Analysis of the resulting transformants showed that TALEN-induced double strand breaks led to the introduction of short deletions at the target site. Additional analysis revealed that each barley transformant contained a range of different mutations, indicating that mutations occurred independently in different cells. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

TAL effector nucleases induce mutations at a pre-selected location in the genome of primary barley transformants

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Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Life Sciences; Plant Sciences; Biochemistry, general; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1007/s11103-013-0078-4
Publisher site
See Article on Publisher Site

Abstract

Transcription activator-like effector nucleases (TALENs) enable targeted mutagenesis in a variety of organisms. The primary advantage of TALENs over other sequence-specific nucleases, namely zinc finger nucleases and meganucleases, lies in their ease of assembly, reliability of function, and their broad targeting range. Here we report the assembly of several TALENs for a specific genomic locus in barley. The cleavage activity of individual TALENs was first tested in vivo using a yeast-based, single-strand annealing assay. The most efficient TALEN was then selected for barley transformation. Analysis of the resulting transformants showed that TALEN-induced double strand breaks led to the introduction of short deletions at the target site. Additional analysis revealed that each barley transformant contained a range of different mutations, indicating that mutations occurred independently in different cells.

Journal

Plant Molecular BiologySpringer Journals

Published: May 21, 2013

References

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