Journal
PLANT MOLECULAR BIOLOGY
Volume 83, Issue 3, Pages 279-285Publisher
SPRINGER
DOI: 10.1007/s11103-013-0078-4
Keywords
TAL effector nucleases; Targeted mutagenesis; Hordeum vulgare; Cereal transformation; TALEN
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Funding
- Danish Ministry of Food, Agriculture and Fisheries [3304-FVFP-09-B-006]
- US National Science Foundation [DBI 0923827]
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [0923827] Funding Source: National Science Foundation
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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.
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