Evidence map›Paper›PMID 28453515›Full record

ArticlePloS one2017

Reliable reference genes for normalization of gene expression data in tea plants (Camellia sinensis) exposed to metal stresses.

Ming-Le Wang, Qing-Hui Li, Hua-Hong Xin, Xuan Chen, Xu-Jun Zhu, Xing-Hui Li

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

21 citing papers in PubMed.

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  11. JA-Ile-macrolactone 5b Induces Tea Plant (International journal of molecular sciences · 2020
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  12. Identification and validation of superior housekeeping gene(s) for qRT-PCR data normalization inPhysiology and molecular biology of plants : an international journal of functional plant biology · 2020
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Ming-Le WangTea Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China.
Qing-Hui LiTea Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China.
Hua-Hong XinTea Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China.
Xuan ChenTea Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China.
Xu-Jun ZhuTea Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China.
Xing-Hui LiTea Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China.ORCID http://orcid.org/0000-0001-6451-7453

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tea plants [Camellia sinensis (L.) O. Kuntze] are an important leaf-type crop that are widely used for the production of non-alcoholic beverages in the world. Exposure to excessive amounts of heavy metals adversely affects the quality and yield of tea leaves. To analyze the molecular responses of tea plants to heavy metals, a reliable quantification of gene expression is important and of major importance herein is the normalization of the measured expression levels for the target genes. Ideally, stably expressed reference genes should be evaluated in all experimental systems. In this study, 12 candidate reference genes (i.e., 18S rRNA, Actin, CYP, EF-1α, eIF-4α, GAPDH, MON1, PP2AA3, TBP, TIP41, TUA, and UBC) were cloned from tea plants, and the stability of their expression was examined systematically in 60 samples exposed to diverse heavy metals (i.e., manganese, aluminum, copper, iron, and zinc). Three Excel-based algorithms (geNorm, NormFinder, and BestKeeper) were used to evaluate the expression stability of these genes. PP2AA3 and 18S rRNA were the most stably expressed genes, even though their expression profiles exhibited some variability. Moreover, commonly used reference genes (i.e., GAPDH and TBP) were the least appropriate reference genes for most samples. To further validate the suitability of the analyzed reference genes, the expression level of a phytochelatin synthase gene (i.e., CsPCS1) was determined using the putative reference genes for data normalizations. Our results may be beneficial for future studies involving the quantification of relative gene expression levels in tea plants.

Indexed as

Camellia sinensisGene Expression ProfilingGenes, PlantMetalsReference StandardsStress, PhysiologicalMetals

Identifiers

PMID28453515
PMCPMC5409199

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.