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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2021.01.006
|2 doi
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|a pubmed24n1248.xml
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|a (NLM)33445042
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|a (PII)S0981-9428(21)00008-5
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Awasthi, Praveen
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Establishment of CRISPR/Cas9 mediated targeted mutagenesis in hop (Humulus lupulus)
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|c 2021
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 02.03.2021
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|a Date Revised 04.01.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2021 Elsevier Masson SAS. All rights reserved.
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|a The CRISPR/Cas9-based targeted genome editing has emerged as a versatile technique, widely employed in plant genome engineering, both to decipher gene function and as an alternative to classical breeding technique for traits improvement in plants. However, to date, no such platform has been developed for hop (Humulus lupulus L.), which is an economically important crop producing valuable secondary metabolites utilized in the brewing and pharmaceutical industries. Here, we present the first report on the successful establishment of efficient CRISPR/Cas9-based genome editing using the visible endogenous marker gene phytoene desaturase (PDS) involved in carotenoid biosynthesis to demonstrate successful genome editing in hop. Agrobacterium tumefaciens-mediated transformation of in vitro generated internodal explants was used for the stable integration of constructs expressing plant codon-optimized Cas9 and a pair of co-expressed guide RNAs to target the distinct genomic sites of the PDS gene of hop. Analysis of RNA-guided genome-editing events, including mutant lines screening and homozygosity assessment using the T7 endonuclease assay showed that 33.3% of transformed plants were successfully edited at the target site, displaying albino and mosaic regenerants. Intriguingly, the detected mutations were ranges of deletions (16 bp to 39 bp) which led to disruption of the exon-intron boundary, few base substitutions, and a 1 bp insertion at 3 bp upstream of the PAM region of the target site. The decrease in chlorophyll a/b, and carotenoid content in the mutant lines further confirmed the functional disruption of the HlPDS gene. Taken together, our results demonstrate that the CRISPR/Cas9 system can precisely edit the targeted genome sequences, which may revolutionize our way to overcome some of the obstacles that have plagued the traits improvement in hop
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|a Journal Article
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|a CRISPR/Cas9
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|a Genome editing
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|a Hop
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|a Phytoene desaturase
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|a Transformation and T7E1 assay
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|a RNA, Guide, CRISPR-Cas Systems
|2 NLM
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|a Chlorophyll
|2 NLM
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|a 1406-65-1
|2 NLM
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|a chlorophyll b
|2 NLM
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|a 5712ZB110R
|2 NLM
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|a Oxidoreductases
|2 NLM
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|a EC 1.-
|2 NLM
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|a phytoene dehydrogenase
|2 NLM
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|a EC 1.14.99.-
|2 NLM
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|a Chlorophyll A
|2 NLM
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| 650 |
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|a YF5Q9EJC8Y
|2 NLM
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| 700 |
1 |
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|a Kocábek, Tomáš
|e verfasserin
|4 aut
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|a Mishra, Ajay Kumar
|e verfasserin
|4 aut
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|a Nath, Vishnu Sukumari
|e verfasserin
|4 aut
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| 700 |
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|a Shrestha, Ankita
|e verfasserin
|4 aut
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| 700 |
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|a Matoušek, Jaroslav
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 160(2021) vom: 02. März, Seite 1-7
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:160
|g year:2021
|g day:02
|g month:03
|g pages:1-7
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|u http://dx.doi.org/10.1016/j.plaphy.2021.01.006
|3 Volltext
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