Evidence map›Paper›PMID 29975782›Full record

ArticlePloS one2018

Comparative transcriptome analysis provides global insight into gene expression differences between two orchid cultivars.

Yu Jiang, Hai-Yan Song, Jun-Rong He, Qiang Wang, Jia Liu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 34% of its field
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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 18 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Yu JiangCollege of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan Province, China.ORCID 0000-0003-0804-2347
Hai-Yan SongInstitute of Horticulture, Sichuan Academy of Agricultural Science, Chengdu, Sichuan Province, China.
Jun-Rong HeInstitute of Horticulture, Sichuan Academy of Agricultural Science, Chengdu, Sichuan Province, China.
Qiang WangCollege of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan Province, China.
Jia LiuInstitute of Horticulture, Sichuan Academy of Agricultural Science, Chengdu, Sichuan Province, China.
Sichuan Academy of Agricultural Sciences · CNSichuan Agricultural University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The orchids GL and YL are two cultivars of Cymbidium longibracteatum. YL displays an obviously yellowing rhizome and yellow leaves, while GL ('Longchangsu') shows dark green leaves and greenish rhizome. But the molecular mechanism for the differences between the two cultivars is poorly understood. In the present study, we showed that the structure of chloroplasts was significantly damaged in YL. Biochemical analysis uncovered the contents of chlorophyll a, chlorophyll b, total chlorophyll and carotenoid were notably decreased in YL. Using RNA-Seq technology, more than 38 million clean reads were generated in each pool, and 116,422 unigenes were assembled de novo. 6,660 unigenes with differential expression patterns (FDR≤0.01 and |log2 ratio|≥1) were totally identified between the two cultivars. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of differentially expressed unigenes (DEGs) suggested 33 KEGG pathways were notably enriched, including biological processes such as "phenylpropanoid biosynthesis", "phagosome", "starch and sucrose metabolism", "drug metabolism-cytochrome P450", "fatty acid elongation", and "flavone and flavonol biosynthesis". Further analysis revealed that chlorophyll degeneration related unigene (c48794_g1) and flavonoid biosynthesis related unigenes (c16388_g1, c48963_g1, c63571_g1, c4492_g1, c52282_g1, c78740_g1, c4645_g1) were up-regulated while carotenoid biosynthesis related unigene (c7212_g1) were down-regulated in YL. Additionally, six of NAC, R2R3-MYB, bHLH transcription factors (c42861_g1, c105949_g1, c61265_g1, c42659_g1, c82171_g1, c19158_g1) might be involved in regulation of pigment biosynthesis. The chlorophyll degeneration and the flavonoid biosynthesis related unigenes up-regulation together with the carotenoid biosynthesis related unigenes down-regulation may contribute to the yellowing phenotype of YL.

Indexed as

CarotenoidsChlorophyllChlorophyll AChloroplastsGene Expression ProfilingGene Expression Regulation, PlantMolecular Sequence AnnotationOrchidaceaePlant LeavesPlant ProteinsSequence Analysis, RNATranscriptomeCarotenoidsChlorophyllChlorophyll Achlorophyll bPlant Proteins

Identifiers

PMID29975782
PMCPMC6033423
OpenAlexW2816864377

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Registered trials

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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.