Repurposing of Anthocyanin Biosynthesis for Plant Transformation and Genome Editing

CRISPR/Cas9 gene editing technology has been very effective in editing genes in many plant species including rice. Here we further improve the current CRISPR/Cas9 gene editing technology in both efficiency and time needed for isolation of transgene-free and target gene-edited plants. We coupled the...

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Published inFrontiers in genome editing Vol. 2; p. 607982
Main Authors He, Yubing, Zhu, Min, Wu, Junhua, Ouyang, Lejun, Wang, Rongchen, Sun, Hui, Yan, Lang, Wang, Lihao, Xu, Meilian, Zhan, Huadong, Zhao, Yunde
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LanguageEnglish
Published Switzerland Frontiers Media S.A 03.12.2020
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Abstract CRISPR/Cas9 gene editing technology has been very effective in editing genes in many plant species including rice. Here we further improve the current CRISPR/Cas9 gene editing technology in both efficiency and time needed for isolation of transgene-free and target gene-edited plants. We coupled the CRISPR/Cas9 cassette with a unit that activates anthocyanin biosynthesis, providing a visible marker for detecting the presence of transgenes. The anthocyanin-marker assisted CRISPR (AAC) technology enables us to identify transgenic events even at calli stage, to select transformants with elevated expression, and to identify transgene-free plants in the field. We used the AAC technology to edit and and successfully generated many transgene-free and target gene-edited plants at T1 generation. The AAC technology greatly reduced the labor, time, and costs needed for editing target genes in rice.
AbstractList CRISPR/Cas9 gene editing technology has been very effective in editing genes in many plant species including rice. Here we further improve the current CRISPR/Cas9 gene editing technology in both efficiency and time needed for isolation of transgene-free and target gene-edited plants. We coupled the CRISPR/Cas9 cassette with a unit that activates anthocyanin biosynthesis, providing a visible marker for detecting the presence of transgenes. The anthocyanin-marker assisted CRISPR (AAC) technology enables us to identify transgenic events even at calli stage, to select transformants with elevated expression, and to identify transgene-free plants in the field. We used the AAC technology to edit and and successfully generated many transgene-free and target gene-edited plants at T1 generation. The AAC technology greatly reduced the labor, time, and costs needed for editing target genes in rice.
CRISPR/Cas9 gene editing technology has been very effective in editing genes in many plant species including rice. Here we further improve the current CRISPR/Cas9 gene editing technology in both efficiency and time needed for isolation of transgene-free and target gene-edited plants. We coupled the CRISPR/Cas9 cassette with a unit that activates anthocyanin biosynthesis, providing a visible marker for detecting the presence of transgenes. The anthocyanin-marker assisted CRISPR (AAC) technology enables us to identify transgenic events even at calli stage, to select transformants with elevated Cas9 expression, and to identify transgene-free plants in the field. We used the AAC technology to edit LAZY1 and G1 and successfully generated many transgene-free and target gene-edited plants at T1 generation. The AAC technology greatly reduced the labor, time, and costs needed for editing target genes in rice.
CRISPR/Cas9 gene editing technology has been very effective in editing genes in many plant species including rice. Here we further improve the current CRISPR/Cas9 gene editing technology in both efficiency and time needed for isolation of transgene-free and target gene-edited plants. We coupled the CRISPR/Cas9 cassette with a unit that activates anthocyanin biosynthesis, providing a visible marker for detecting the presence of transgenes. The anthocyanin-marker assisted CRISPR (AAC) technology enables us to identify transgenic events even at calli stage, to select transformants with elevated Cas9 expression, and to identify transgene-free plants in the field. We used the AAC technology to edit LAZY1 and G1 and successfully generated many transgene-free and target gene-edited plants at T1 generation. The AAC technology greatly reduced the labor, time, and costs needed for editing target genes in rice.
Author Xu, Meilian
Wu, Junhua
Zhan, Huadong
Zhu, Min
Zhao, Yunde
Wang, Rongchen
Ouyang, Lejun
Sun, Hui
Wang, Lihao
He, Yubing
Yan, Lang
AuthorAffiliation 5 Section of Cell and Developmental Biology, University of California , San Diego, La Jolla, CA , United States
2 National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University , Wuhan , China
4 Key Laboratory of Plant Resource Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences , Guangzhou , China
3 Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Guangdong University of Petrochemical Technology , Maoming , China
1 State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University , Nanjing , China
AuthorAffiliation_xml – name: 2 National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University , Wuhan , China
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– name: 1 State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University , Nanjing , China
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ContentType Journal Article
Copyright Copyright © 2020 He, Zhu, Wu, Ouyang, Wang, Sun, Yan, Wang, Xu, Zhan and Zhao.
Copyright © 2020 He, Zhu, Wu, Ouyang, Wang, Sun, Yan, Wang, Xu, Zhan and Zhao. 2020 He, Zhu, Wu, Ouyang, Wang, Sun, Yan, Wang, Xu, Zhan and Zhao
Copyright_xml – notice: Copyright © 2020 He, Zhu, Wu, Ouyang, Wang, Sun, Yan, Wang, Xu, Zhan and Zhao.
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Keywords CRISPR
AAC
anthocyanin
rice
transgene-free
Language English
License Copyright © 2020 He, Zhu, Wu, Ouyang, Wang, Sun, Yan, Wang, Xu, Zhan and Zhao.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
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Reviewed by: Yiping Qi, University of Maryland, United States; Kan Wang, Iowa State University, United States
These authors have contributed equally to this work
This article was submitted to Genome Editing in Plants, a section of the journal Frontiers in Genome Editing
Edited by: Lanqin Xia, Chinese Academy of Agricultural Sciences, China
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Snippet CRISPR/Cas9 gene editing technology has been very effective in editing genes in many plant species including rice. Here we further improve the current...
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StartPage 607982
SubjectTerms AAC
anthocyanin
CRISPR
Genome Editing
rice
transgene-free
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Title Repurposing of Anthocyanin Biosynthesis for Plant Transformation and Genome Editing
URI https://www.ncbi.nlm.nih.gov/pubmed/34713232
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