Fine-tuning sugar content in strawberry.

Abstract:

:Fine-tuning quantitative traits for continuous subtle phenotypes is highly advantageous. We engineer the highly conserved upstream open reading frame (uORF) of FvebZIPs1.1 in strawberry (Fragaria vesca), using base editor A3A-PBE. Seven novel alleles are generated. Sugar content of the homozygous T1 mutant lines is 33.9-83.6% higher than that of the wild-type. We also recover a series of transgene-free mutants with 35 novel genotypes containing a continuum of sugar content. All the novel genotypes could be immediately fixed in subsequent generations by asexual reproduction. Genome editing coupled with asexual reproduction offers tremendous opportunities for quantitative trait improvement.

journal_name

Genome Biol

journal_title

Genome biology

authors

Xing S,Chen K,Zhu H,Zhang R,Zhang H,Li B,Gao C

doi

10.1186/s13059-020-02146-5

subject

Has Abstract

pub_date

2020-09-03 00:00:00

pages

230

issue

1

eissn

1474-7596

issn

1474-760X

pii

10.1186/s13059-020-02146-5

journal_volume

21

pub_type

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