Abstract
Light is an important environmental factor affecting the ripening and quality of strawberry fruit. Previous studies have shown that red light treatment can promote strawberry ripening. Gene expression is closely associated with chromatin openness, and changes in chromatin accessibility are crucial for the binding of transcription factors to downstream regulatory sequences. However, the changes in chromatin accessibility in response to different light treatments in octoploid strawberry plants are still unclear. In this study, the landscape of chromatin accessibility of octoploid strawberry under red (R) and yellow–green (YG) light conditions was analyzed by the assay for transposase-accessible chromatin with high-throughput sequencing (ATAC-seq). Through bioinformatics and Venn diagram analyses, a total of 1456 and 1854 group-specific genes (GSGs) were screened in the R and YG groups, respectively. By using RNA sequencing (RNA-seq), 440 differentially expressed genes (DEGs) were identified. Among these genes, 194 were upregulated under red light treatment. Through joint analysis of ATAC-seq and RNA-seq data, three red group-specific genes with increased expression were identified, namely, FaTIP1, FaQKY and FaLBD1. Through gene expression and transient transformation analyses of strawberry fruit, we further demonstrated that FaTIP1 can respond to red light induction and promote the ripening process of strawberry fruit. Our results provide a reference for the study of chromatin accessibility in octoploid strawberry and reveal new factors involved in the fruit’s response to red light and the regulation of the ripening process of strawberry fruit.
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Claims 7
Claim · model-written summary
Red and yellow-green light groups had 1456 and 1854 group-specific genes, respectively.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- Re0
- Outcome
- group-specific genes (GSGs)e0
- Value
- 1456e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“a total of 1456 and 1854 group-specific genes (GSGs) were screened in the R and YG groups, respectively.”
t0“Strawberry”
Claim · model-written summary
Yellow-green group had 1854 group-specific genes.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- YGe0
- Outcome
- group-specific genes (GSGs)e0
- Value
- 1854e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a total of 1456 and 1854 group-specific genes (GSGs) were screened in the R and YG groups, respectively.”
t0“Strawberry”
Claim · model-written summary
RNA sequencing identified 440 differentially expressed genes.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- differentially expressed genes (DEGs)e0
- Value
- 440e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“440 differentially expressed genes (DEGs) were identified.”
t0“Strawberry”
Claim · model-written summary
Red light upregulated 194 genes.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- red light treatmente0
- Outcome
- genese0
- Direction
- upregulatede0
- Value
- 194e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among these genes, 194 were upregulated under red light treatment.”
t0“Strawberry”
Claim · model-written summary
FaTIP1, FaQKY and FaLBD1 showed increased expression specific to the red group.
- Taxon
- strawberryFragaria ×ananassat0
- Gene
- FaTIP1, FaQKY and FaLBD1e0
- Outcome
- expressione0
- Direction
- increasede0
- Value
- threee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three red group-specific genes with increased expression were identified, namely, FaTIP1, FaQKY and FaLBD1.”
t0“Strawberry”
Claim · model-written summary
FaTIP1 responded to red light induction.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- red light inductione0
- Gene
- FaTIP1e0
- Outcome
- responde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FaTIP1 can respond to red light induction and promote the ripening process of strawberry fruit.”
Claim · model-written summary
FaTIP1 promoted strawberry fruit ripening.
- Taxon
- strawberryFragaria ×ananassae0
- Gene
- FaTIP1e0
- Outcome
- ripening processe0
- Direction
- promotee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FaTIP1 can respond to red light induction and promote the ripening process of strawberry fruit.”
The same questions in other papers
light · molecular: expression · Fragaria x ananassa (strawberry)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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2 papers more in this group
See all 6 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.