Paper · 2022 · aBIOTECH

Elimination of an unfavorable allele conferring pod shattering in an elite soybean cultivar by CRISPR/Cas9

Zhihui Zhang; Jie Wang; Huaqin Kuang; et al.

5
claims
10
verbatim quotes
23
citations
4
research areas
✓
Open access · cc-by

Abstract

Pod shattering can lead to devastating yield loss of soybean and has been a negatively selected trait in soybean domestication and breeding. Nevertheless, a significant portion of soybean cultivars are still pod shattering-susceptible, limiting their regional and climatic adaptabilities. Here we performed genetic diagnosis on the shattering-susceptible trait of a national registered cultivar, Huachun6 (HC6), and found that HC6 carries the susceptible genotype of a candidate Pod dehiscence 1 ( PDH1 ) gene, which exists in a significant portion of soybean cultivars. We next performed genome editing on PDH1 gene by clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated protein 9 (Cas9). In T 2 progenies, several transgene-free lines with pdh1 mutations were characterized without affecting major agronomic traits. The pdh1 mutation significantly improved the pod shattering resistance which is associated with aberrant lignin distribution in inner sclerenchyma. Our work demonstrated that precision breeding by genome editing on PDH1 holds great potential for precisely improving pod shattering resistance and adaptability of soybean cultivars.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 5

Observationobservedoriginal resultmeasured

Claim · model-written summary

Huachun6 carries a susceptible PDH1 genotype also present in many soybean cultivars.

Taxon
soybeanGlycine maxe0
Material
HC6e0
Gene
PDH1e0
Outcome
susceptible genotypee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“HC6 carries the susceptible genotype of a candidate Pod dehiscence 1 ( PDH1 ) gene, which exists in a significant portion of soybean cultivars.”

✓ located verbatim in the source · abstract, characters 427–570 · show in text ↑
e1

“national registered cultivar, Huachun6 (HC6)”

✓ located verbatim in the source · abstract, characters 366–410 · show in text ↑
Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Several transgene-free pdh1 mutant lines were obtained in T2 progenies.

Taxon
soybeanGlycine maxe1
Gene
pdh1e0
Outcome
transgene-free lines with pdh1 mutationse0
Value
severale0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“In T 2 progenies, several transgene-free lines with pdh1 mutations were characterized”

✓ located verbatim in the source · abstract, characters 723–808 · show in text ↑
e1

“significant portion of soybean cultivars.”

✓ located verbatim in the source · abstract, characters 529–570 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The pdh1 mutant lines did not alter major agronomic traits.

Taxon
soybeanGlycine maxe1
Treatment
pdh1 mutationse0
Outcome
major agronomic traitse0
Direction
without affectinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“several transgene-free lines with pdh1 mutations were characterized without affecting major agronomic traits.”

✓ located verbatim in the source · abstract, characters 741–850 · show in text ↑
e1

“significant portion of soybean cultivars.”

✓ located verbatim in the source · abstract, characters 529–570 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The pdh1 mutation significantly improved pod-shattering resistance.

Taxon
soybeanGlycine maxe1
Treatment
pdh1 mutatione0
Gene
pdh1e0
Outcome
pod shattering resistancee0
Direction
improvede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The pdh1 mutation significantly improved the pod shattering resistance”

✓ located verbatim in the source · abstract, characters 851–921 · show in text ↑
e1

“significant portion of soybean cultivars.”

✓ located verbatim in the source · abstract, characters 529–570 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Improved shattering resistance was associated with aberrant lignin distribution in inner sclerenchyma.

Taxon
soybeanGlycine maxe1
Organ / stage
inner sclerenchymae0
Gene
pdh1e0
Compound
lignine0
Outcome
pod shattering resistancee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The pdh1 mutation significantly improved the pod shattering resistance which is associated with aberrant lignin distribution in inner sclerenchyma.”

✓ located verbatim in the source · abstract, characters 851–998 · show in text ↑
e1

“significant portion of soybean cultivars.”

✓ located verbatim in the source · abstract, characters 529–570 · show in text ↑

loss of function · disease · Glycine max (soybean)Positive and negative results

37 papers: 17 positive, 20 negative or no effect

16 papers in the same direction as this paper · 20 in the opposite direction

  1. negative
  2. negative
  3. negative

33 papers more in this group

See all 37 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.