Abstract
Maize rough dwarf disease (MRDD), caused by Fijivirus , poses a significant threat to global maize production. Using a recombinant inbred line (RIL) population derived from the resistant parent CML199 and the susceptible parent Zheng58, we identified three MRDD resistance QTLs on chromosomes 2, 6, and 9, accounting for 12.71, 5.89, and 11.04% of the total phenotypic variation, respectively. Among them, the major locus qMrdd3 on chromosome 2 demonstrated incomplete dominance, conferring a resistance enhancement of 26.36–34.47% across diverse environments. Fine-mapping refined qMrdd3 to a 227.7-kb interval containing five candidate genes, among which Zm00001d002441 was specifically upregulated in the resistant near-isogenic line (NIL-R) following RBSDV infection. Additionally, two co-segregating markers were developed to facilitate efficient marker-assisted selection. Introgression of qMrdd3 into Zheng58 and Chang7-2 enhanced field resistance by 38.84 and 26.47%, respectively. This study provides a valuable genetic resource for MRDD resistance breeding through QTL dissection, elite germplasm development, and marker-assisted breeding.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 10
Claim · model-written summary
A resistance QTL on chromosome 2 accounted for 12.71% of total phenotypic variation.
- Gene
- MRDD resistance QTLse1
- Outcome
- total phenotypic variatione1
- Value
- 12.71e1
- Qualifier
- chromosomes 2, 6, and 9e1
Zea maysNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize rough dwarf disease”
e0“Maize rough dwarf disease (MRDD), caused by Fijivirus”
e1“we identified three MRDD resistance QTLs on chromosomes 2, 6, and 9, accounting for 12.71, 5.89, and 11.04% of the total phenotypic variation, respectively”
Claim · model-written summary
A resistance QTL on chromosome 6 accounted for 5.89% of total phenotypic variation.
- Gene
- MRDD resistance QTLse1
- Outcome
- total phenotypic variatione1
- Value
- 5.89e1
- Qualifier
- chromosomes 2, 6, and 9e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize rough dwarf disease”
e0“Maize rough dwarf disease (MRDD), caused by Fijivirus”
e1“we identified three MRDD resistance QTLs on chromosomes 2, 6, and 9, accounting for 12.71, 5.89, and 11.04% of the total phenotypic variation, respectively”
Claim · model-written summary
A resistance QTL on chromosome 9 accounted for 11.04% of total phenotypic variation.
- Gene
- MRDD resistance QTLse1
- Outcome
- total phenotypic variatione1
- Value
- 11.04e1
- Qualifier
- chromosomes 2, 6, and 9e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize rough dwarf disease”
e0“Maize rough dwarf disease (MRDD), caused by Fijivirus”
e1“we identified three MRDD resistance QTLs on chromosomes 2, 6, and 9, accounting for 12.71, 5.89, and 11.04% of the total phenotypic variation, respectively”
Claim · model-written summary
The major locus qMrdd3 on chromosome 2 showed incomplete dominance and increased resistance by 26.36–34.47% across environments.
- Gene
- qMrdd3e2
- Outcome
- resistance enhancemente2
- Direction
- enhancemente2
- Value
- 26.36–34.47%e2
- Qualifier
- across diverse environmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize rough dwarf disease”
e2“the major locus qMrdd3 on chromosome 2 demonstrated incomplete dominance, conferring a resistance enhancement of 26.36–34.47% across diverse environments”
Claim · model-written summary
Fine-mapping narrowed qMrdd3 to a 227.7-kb interval containing five candidate genes.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize rough dwarf disease”
e3“Fine-mapping refined qMrdd3 to a 227.7-kb interval containing five candidate genes”
Claim · model-written summary
Zm00001d002441 was specifically upregulated in the resistant near-isogenic line after RBSDV infection.
- Material
- resistant near-isogenic line (NIL-R)e4
- Treatment
- RBSDV infectione4
- Interactor
- RBSDVRice black streaked dwarf viruse4pathogen
- Gene
- Zm00001d002441e4
- Outcome
- Zm00001d002441e4
- Direction
- upregulatede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize rough dwarf disease”
e4“Zm00001d002441 was specifically upregulated in the resistant near-isogenic line (NIL-R) following RBSDV infection”
Claim · model-written summary
Introgression of qMrdd3 into Zheng58 enhanced field resistance by 38.84.
- Material
- Zheng58e5
- Treatment
- Introgression of qMrdd3e5
- Gene
- qMrdd3e5
- Outcome
- field resistancee5
- Direction
- enhancede5
- Value
- 38.84e5
- Setting
- fielde5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize rough dwarf disease”
e5“Introgression of qMrdd3 into Zheng58 and Chang7-2 enhanced field resistance by 38.84 and 26.47%, respectively”
Claim · model-written summary
Introgression of qMrdd3 into Chang7-2 enhanced field resistance by 26.47.
- Material
- Chang7-2e5
- Treatment
- Introgression of qMrdd3e5
- Gene
- qMrdd3e5
- Outcome
- field resistancee5
- Direction
- enhancede5
- Value
- 26.47e5
- Setting
- fielde5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize rough dwarf disease”
e5“Introgression of qMrdd3 into Zheng58 and Chang7-2 enhanced field resistance by 38.84 and 26.47%, respectively”
Claim · model-written summary
The study provides a genetic resource for MRDD resistance breeding.
- Outcome
- genetic resource for MRDD resistance breedinge7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize rough dwarf disease”
e7“This study provides a valuable genetic resource for MRDD resistance breeding”
Claim · model-written summary
Two co-segregating markers were developed for marker-assisted selection of qMrdd3.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize rough dwarf disease”
e6“two co-segregating markers were developed to facilitate efficient marker-assisted selection”
The same questions in other papers
transgenic · disease · Zea mays (maize)Positive and negative results
12 papers in the same direction as this paper · 5 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- negative
- negative
16 papers more in this group
See all 20 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.