Abstract
Cotton fiber is one of the most important natural fiber sources in the world, and lipid metabolism plays a critical role in its development. However, the specific role of lipid molecules in fiber development and the impact of fatty acid alterations on fiber quality remain largely unknown. In this study, we demonstrate that the downregulation of GhROD1, a gene encoding phosphatidylcholine diacylglycerol cholinephosphotransferase (PDCT), results in an improvement of fiber fineness. We found that GhROD1 downregulation significantly increases the proportion of linoleic acid (18:2) in cotton fibers, which subsequently upregulates genes encoding small heat shock proteins (sHSPs). This, in turn, reduces H2O2 production, thus delaying secondary wall deposition and leading to finer fibers. Our findings reveal how alterations in linoleic acid influence cellulose synthesis and suggest a potential strategy to improve cotton fiber quality by regulating lipid metabolism pathways.
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Claims 5
Claim · model-written summary
GhROD1 downregulation improved cotton fiber fineness.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- downregulation of GhROD1e0
- Gene
- GhROD1e0
- Outcome
- fiber finenesse0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“downregulation of GhROD1, a gene encoding phosphatidylcholine diacylglycerol cholinephosphotransferase (PDCT), results in an improvement of fiber fineness”
t0“Cotton Fiber Fineness”
Claim · model-written summary
GhROD1 downregulation significantly increased linoleic acid proportion in cotton fibers.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- GhROD1 downregulatione0
- Gene
- GhROD1e0
- Outcome
- proportion of linoleic acid (18:2) in cotton fiberse0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GhROD1 downregulation significantly increases the proportion of linoleic acid (18:2) in cotton fibers”
Claim · model-written summary
Increased linoleic acid upregulated genes encoding small heat shock proteins.
- Taxon
- cottonGossypium hirsutume0
- Gene
- small heat shock proteins (sHSPs)e0
- Compound
- linoleic acid (18:2)e0
- Outcome
- upregulates genes encoding small heat shock proteins (sHSPs)e0
- Direction
- upregulatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“linoleic acid (18:2) in cotton fibers, which subsequently upregulates genes encoding small heat shock proteins (sHSPs)”
Claim · model-written summary
The upregulation of small heat shock proteins reduced H2O2 production.
- Taxon
- CottonGossypium hirsutumt0
- Gene
- small heat shock proteins (sHSPs)e0
- Outcome
- H2O2 productione0
- Direction
- reducese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genes encoding small heat shock proteins (sHSPs). This, in turn, reduces H2O2 production”
t0“Cotton Fiber Fineness”
Claim · model-written summary
Reduced H2O2 production delayed secondary wall deposition.
- Taxon
- CottonGossypium hirsutumt0
- Compound
- H2O2e0
- Outcome
- secondary wall depositione0
- Direction
- delayinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduces H2O2 production, thus delaying secondary wall deposition”
t0“Cotton Fiber Fineness”
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