Abstract
BACKGROUND: Fruit size is a crucial agronomic trait that significantly influences fruit quality and economic value. Gibberellin serves as an effective phytohormone that promotes fruit expansion and is widely utilized during the early stages of fruit development. However, the mechanisms underlying GA-mediated fruit enlargement in pear, along with the associated genes and regulatory mechanisms, remain poorly understood. RESULTS: In this study, pear cultivar 'Cuiguan' was treated with various combinations of GAs, specifically GA3, GA4 + 7, and GA3 + 4 + 7 at 30 days after flowering. The combination of GA3 + 4 + 7 produced the most pronounced increase in pear fruit size, primarily through promoting elongation. Anatomical analysis revealed that this treatment enhanced both cell proliferation and expansion. RNA-seq was conducted and identified differentially expressed genes associated with GA3 + 4 + 7-mediated fruit enlargement. Functional annotation and enrichment analyses highlighted the involvement of genes related to plant hormone signaling, cell growth, cell division, cell cycle, and transcription factors. Nine DEGs associated with fruit size were validated by RT-qPCR analysis, confirming the RNA-seq results. CONCLUSIONS: This study elucidates the molecular mechanisms by which gibberellins regulate pear fruit development and identify key genes involved in this process, providing a foundation for future research on GA3 + 4 + 7-mediated fruit size regulation.
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Claims 7
Claim · model-written summary
GA3 + 4 + 7 produced the greatest pear fruit size increase.
- Taxon
- pear
_Poirier_Fleurs_et_feuilles.jpg?width=60)
Pyrus communise0 - Material
- Cuiguane1
- Treatment
- GA3 + 4 + 7e0
- Outcome
- pear fruit sizee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)
Verbatim
e0“The combination of GA3 + 4 + 7 produced the most pronounced increase in pear fruit size”
e1“pear cultivar 'Cuiguan'”
Claim · model-written summary
GA3 + 4 + 7 promoted fruit elongation.
- Taxon
- pearPyrus communise0
- Treatment
- GA3 + 4 + 7e0
- Outcome
- elongatione0
- Direction
- promotinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of GA3 + 4 + 7 produced the most pronounced increase in pear fruit size, primarily through promoting elongation.”
Claim · model-written summary
GA3 + 4 + 7 enhanced cell proliferation.
- Taxon
- pearPyrus communist0
- Treatment
- GA3 + 4 + 7e1
- Outcome
- cell proliferatione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anatomical analysis revealed that this treatment enhanced both cell proliferation and expansion.”
t0“pear”
e1“specifically GA3, GA4 + 7, and GA3 + 4 + 7 at 30 days after flowering”
Claim · model-written summary
GA3 + 4 + 7 enhanced cell expansion.
- Taxon
- pearPyrus communist0
- Treatment
- GA3 + 4 + 7e1
- Outcome
- expansione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anatomical analysis revealed that this treatment enhanced both cell proliferation and expansion.”
t0“pear”
e1“specifically GA3, GA4 + 7, and GA3 + 4 + 7 at 30 days after flowering”
Claim · model-written summary
RNA-seq identified differentially expressed genes linked to GA3 + 4 + 7 fruit enlargement.
- Taxon
- pearPyrus communist0
- Gene
- differentially expressed genese0
- Outcome
- differentially expressed genes associated with GA3 + 4 + 7-mediated fruit enlargemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“identified differentially expressed genes associated with GA3 + 4 + 7-mediated fruit enlargement”
t0“pear”
Claim · model-written summary
Enrichment implicated hormone signaling, cell growth and division, cell cycle, and transcription factors.
- Taxon
- pearPyrus communist0
- Gene
- genese0
- Outcome
- plant hormone signaling, cell growth, cell division, cell cycle, and transcription factorse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“involvement of genes related to plant hormone signaling, cell growth, cell division, cell cycle, and transcription factors”
t0“pear”
Claim · model-written summary
RT-qPCR validation of nine fruit-size DEGs confirmed RNA-seq findings.
- Taxon
- pearPyrus communist0
- Outcome
- DEGs associated with fruit sizee0
- Value
- Ninee0
- Comparator
- RNA-seq resultse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nine DEGs associated with fruit size were validated by RT-qPCR analysis, confirming the RNA-seq results.”
t0“pear”
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See all 13 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.