期刊
PLANT BIOTECHNOLOGY JOURNAL
卷 13, 期 7, 页码 1002-1010出版社
WILEY-BLACKWELL
DOI: 10.1111/pbi.12344
关键词
TAL effector nuclease; gene editing; targeted mutagenesis; maize; Glossy2
资金
- US National Science Foundation [IOS-1238189]
- National Institute of Food and Agriculture of the US Department of Agriculture [2014-67013-21720]
- Iowa State University Presidential Initiative for Interdisciplinary Research
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [1238202] Funding Source: National Science Foundation
- NIFA [687575, 2014-67013-21720] Funding Source: Federal RePORTER
Transcription activator-like effector nuclease (TALEN) technology has been utilized widely for targeted gene mutagenesis, especially for gene inactivation, in many organisms, including agriculturally important plants such as rice, wheat, tomato and barley. This report describes application of this technology to generate heritable genome modifications in maize. TALENs were employed to generate stable, heritable mutations at the maize glossy2 (gl2) locus. Transgenic lines containing mono- or di-allelic mutations were obtained from the maize genotype Hi-II at a frequency of about 10% (nine mutated events in 91 transgenic events). In addition, three of the novel alleles were tested for function in progeny seedlings, where they were able to confer the glossy phenotype. In a majority of the events, the integrated TALEN T-DNA segregated independently from the new loss of function alleles, producing mutated null-segregant progeny in T1 generation. Our results demonstrate that TALENs are an effective tool for genome mutagenesis in maize, empowering the discovery of gene function and the development of trait improvement.
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