Related Experiment Video
Updated: Sep 28, 2025
12:01
A PCR-based Genotyping Method to Distinguish Between Wild-type and Ornamental Varieties of Imperata cylindrica
Published on: February 20, 2012
31.8K
Stable reference gene selection for quantitative real-time PCR normalization in passion fruit (Passiflora edulis
Meiqi Zhao1, Hang Fan1, Zhonghua Tu1
1Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics and Biotechnology of Ministry of Education, Nanjing Forestry University, Nanjing, 210037, China.
Molecular Biology Reports
|March 31, 2022
Summary
This study identifies reliable reference genes for gene expression analysis in Passiflora edulis (passion fruit). EF1 and Ts were found to be the most stable, providing a foundation for future molecular research on this tropical fruit.
Area of Science:
- Plant Molecular Biology
- Gene Expression Analysis
- Tropical Fruit Research
Background:
- Passiflora edulis (passion fruit) is a valuable tropical fruit with limited molecular biology research.
- Identifying suitable reference genes is crucial for accurate gene expression studies in passion fruit.
- Previous studies on reference gene selection in passion fruit are scarce.
Purpose of the Study:
- To identify and validate stable reference genes for quantitative real-time PCR (qRT-PCR) in Passiflora edulis.
- To evaluate the expression stability of candidate reference genes across various tissues and under cold stress.
- To establish a reliable foundation for future molecular studies on passion fruit.
Main Methods:
- Ten candidate reference genes were selected for stability analysis.
- Gene expression stability was assessed using geNorm, NormFinder, and BestKeeper algorithms.
- Expression profiles were analyzed across different tissues and under cold stress conditions.
- Statistical methods including ANOVA and post hoc analysis were employed for evaluation.
Main Results:
- EF1 and HIS showed stable expression in five tissues.
- Ts and OTU were stable in vegetative organs, while 50 S and Liom were stable in reproductive organs.
- EF1 and UBQ expression was stable in cold-treated and recovery leaf samples.
- EF1 and Ts exhibited the highest overall expression stability.
- EF1 was identified as the optimal reference gene for qRT-PCR normalization in Passiflora edulis.
- ICE1 expression increased with cold treatment duration.
Conclusions:
- Stable reference genes, particularly EF1, were successfully identified for Passiflora edulis.
- The validated reference genes will facilitate accurate gene expression studies in passion fruit.
- This research provides a crucial foundation for further functional gene research in Passiflora edulis.
