Establishment of CRISPR/Cas9 mediated targeted mutagenesis in hop (Humulus lupulus)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00548208" target="_blank" >RIV/60077344:_____/21:00548208 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0981942821000085?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0981942821000085?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.plaphy.2021.01.006" target="_blank" >10.1016/j.plaphy.2021.01.006</a>

Result language

angličtina

Original language name

Establishment of CRISPR/Cas9 mediated targeted mutagenesis in hop (Humulus lupulus)

Original language description

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 the hop.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10603 - Genetics and heredity (medical genetics to be 3)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Plant Physiology and Biochemistry

ISSN

0981-9428

e-ISSN

—

Volume of the periodical

160

Issue of the periodical within the volume

Mar 2021

Country of publishing house

FR - FRANCE

Number of pages

7

Pages from-to

1-7

UT code for WoS article

000637952900001

EID of the result in the Scopus database

2-s2.0-85099233999