Abstract
Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia . The molecular processes of drought resistance in H. myrtifolia remain unknown, which has limited its application. In our study, transcriptome analyzes were compared across three treatment groups (CK, T1, and T2), to investigate the molecular mechanism of drought resistance. Plant leaves wilted and drooped as the duration of drought stress increased. The relative water content of the leaves declined dramatically, and relative electrolyte leakage rose progressively. Using an RNA-Seq approach, a total of 62,015 unigenes with an average length of 1730 bp were found, with 86.61% of them annotated to seven databases, and 14,272 differentially expressed genes (DEGs) were identified in drought stress. GO and KEGG enrichment analyzes of the DEGs revealed significantly enriched KEGG pathways, including photosynthesis, photosynthetic antenna proteins, plant hormone signal transduction, glutathione metabolism, and ascorbate and aldarate metabolism. Abscisic acid signal transduction was the most prevalent in the plant hormone signal transduction pathway, and other plant hormone signal transductions were also involved in the drought stress response. The transcription factors (including MYB, NAC, WRKY, and bHLH) and related differential genes on significantly enriched pathways all played important roles in the drought process, such as photosynthesis-related genes and antioxidant enzyme genes. In conclusion, this study will provide several genetic resources for further investigation of the molecular processes that will be beneficial to H. myrtifolia cultivation and breeding.
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Claims 10
Claim · model-written summary
Leaves of Heimia myrtifolia wilted and drooped as drought stress duration increased.
- Taxon
- Heimia myrtifolia
Heimia myrtifoliae0 - Treatment
- drought stresse1
- Outcome
- wilted and droopede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia”
e1“Plant leaves wilted and drooped as the duration of drought stress increased”
Claim · model-written summary
Leaf relative water content declined dramatically under drought stress.
- Taxon
- Heimia myrtifoliaHeimia myrtifoliae0
- Outcome
- relative water content of the leavese2
- Direction
- declinede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia”
e2“The relative water content of the leaves declined dramatically, and relative electrolyte leakage rose progressively”
Claim · model-written summary
Relative electrolyte leakage rose progressively under drought stress.
- Taxon
- Heimia myrtifoliaHeimia myrtifoliae0
- Outcome
- relative electrolyte leakagee2
- Direction
- rosee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia”
e2“The relative water content of the leaves declined dramatically, and relative electrolyte leakage rose progressively”
Claim · model-written summary
RNA-seq assembled 62,015 unigenes with an average length of 1730 bp.
- Taxon
- Heimia myrtifoliaHeimia myrtifoliae0
- Outcome
- unigenese3
- Value
- 62,015 unigenese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia”
e3“Using an RNA-Seq approach, a total of 62,015 unigenes with an average length of 1730 bp were found, with 86.61% of them annotated to seven databases”
Claim · model-written summary
86.61% of the unigenes were annotated to seven databases.
- Taxon
- Heimia myrtifoliaHeimia myrtifoliae0
- Outcome
- annotated to seven databasese3
- Value
- 86.61%e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia”
e3“Using an RNA-Seq approach, a total of 62,015 unigenes with an average length of 1730 bp were found, with 86.61% of them annotated to seven databases”
Claim · model-written summary
14,272 differentially expressed genes were identified in drought stress.
- Taxon
- Heimia myrtifoliaHeimia myrtifoliae0
- Treatment
- drought stresse4
- Outcome
- differentially expressed genes (DEGs)e4
- Value
- 14,272e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia”
e4“14,272 differentially expressed genes (DEGs) were identified in drought stress”
Claim · model-written summary
Photosynthesis, photosynthetic antenna proteins and plant hormone signal transduction pathways were significantly enriched among DEGs.
- Taxon
- Heimia myrtifoliaHeimia myrtifoliae0
- Outcome
- photosynthesis, photosynthetic antenna proteins, plant hormone signal transductione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia”
e5“GO and KEGG enrichment analyzes of the DEGs revealed significantly enriched KEGG pathways, including photosynthesis, photosynthetic antenna proteins, plant hormone signal transduction, glutathione metabolism, and ascorbate and aldarate metabolism”
Claim · model-written summary
Glutathione metabolism and ascorbate and aldarate metabolism pathways were significantly enriched among DEGs.
- Taxon
- Heimia myrtifoliaHeimia myrtifoliae0
- Outcome
- glutathione metabolism, and ascorbate and aldarate metabolisme5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia”
e5“GO and KEGG enrichment analyzes of the DEGs revealed significantly enriched KEGG pathways, including photosynthesis, photosynthetic antenna proteins, plant hormone signal transduction, glutathione metabolism, and ascorbate and aldarate metabolism”
Claim · model-written summary
Abscisic acid signal transduction was the most prevalent hormone signal pathway under drought.
- Taxon
- Heimia myrtifoliaHeimia myrtifoliae0
- Compound
- Abscisic acide6
- Outcome
- most prevalente6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia”
e6“Abscisic acid signal transduction was the most prevalent in the plant hormone signal transduction pathway”
Claim · model-written summary
MYB, NAC, WRKY and bHLH transcription factors and related differential genes are proposed to play important roles in the drought process.
- Taxon
- Heimia myrtifoliaHeimia myrtifoliae0
- Gene
- MYB, NAC, WRKY, and bHLHe7
- Outcome
- drought processe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia”
e7“The transcription factors (including MYB, NAC, WRKY, and bHLH) and related differential genes on significantly enriched pathways all played important roles in the drought process”