Evidence map›Paper›PMID 26558895›Full record

ArticlePloS one2015

Seven New Complete Plastome Sequences Reveal Rampant Independent Loss of the ndh Gene Family across Orchids and Associated Instability of the Inverted Repeat/Small Single-Copy Region Boundaries.

Hyoung Tae Kim, Jung Sung Kim, Michael J Moore, Kurt M Neubig, Norris H Williams, W Mark Whitten, Joo-Hwan Kim

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed
20.4field-weighted citation impact, top 1% 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

88 citing papers in PubMed, 156 citations in OpenAlex.

  1. Orchid genome evolution and trait innovation.Journal of integrative plant biology · 2026
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  4. Complete Chloroplast Genome of theEcology and evolution · 2026
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  13. Review
  14. Rapid loss of plastidFrontiers in plant science · 2025
    Article
  15. Article
  16. Plastome Evolution and Comparative Analyses of a Recently Radiated GenusInternational journal of molecular sciences · 2024
    Article
  17. Article
  18. Article
  19. Article
  20. Article

28 more citing papers are in PubMed but not listed here.

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

7 authors at 2 institutions in 2 countries.

Hyoung Tae KimDepartment of Life Science, Gachon University, Seongnam, Gyeonggi-do, Korea.
Jung Sung KimDepartment of Life Science, Gachon University, Seongnam, Gyeonggi-do, Korea.
Michael J MooreDepartment of Biology, Oberlin College, Oberlin, Ohio, United States of America.
Kurt M NeubigFlorida Museum of Natural History, University of Florida, Gainesville, Florida, United States of America.
Norris H WilliamsFlorida Museum of Natural History, University of Florida, Gainesville, Florida, United States of America.
W Mark WhittenFlorida Museum of Natural History, University of Florida, Gainesville, Florida, United States of America.
Joo-Hwan KimDepartment of Life Science, Gachon University, Seongnam, Gyeonggi-do, Korea.
Gachon University · KRFlorida Museum of Natural History · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Earlier research has revealed that the ndh loci have been pseudogenized, truncated, or deleted from most orchid plastomes sequenced to date, including in all available plastomes of the two most species-rich subfamilies, Orchidoideae and Epidendroideae. This study sought to resolve deeper-level phylogenetic relationships among major orchid groups and to refine the history of gene loss in the ndh loci across orchids. The complete plastomes of seven orchids, Oncidium sphacelatum (Epidendroideae), Masdevallia coccinea (Epidendroideae), Sobralia callosa (Epidendroideae), Sobralia aff. bouchei (Epidendroideae), Elleanthus sodiroi (Epidendroideae), Paphiopedilum armeniacum (Cypripedioideae), and Phragmipedium longifolium (Cypripedioideae) were sequenced and analyzed in conjunction with all other available orchid and monocot plastomes. Most ndh loci were found to be pseudogenized or lost in Oncidium, Paphiopedilum and Phragmipedium, but surprisingly, all ndh loci were found to retain full, intact reading frames in Sobralia, Elleanthus and Masdevallia. Character mapping suggests that the ndh genes were present in the common ancestor of orchids but have experienced independent, significant losses at least eight times across four subfamilies. In addition, ndhF gene loss was correlated with shifts in the position of the junction of the inverted repeat (IR) and small single-copy (SSC) regions. The Orchidaceae have unprecedented levels of homoplasy in ndh gene presence/absence, which may be correlated in part with the unusual life history of orchids. These results also suggest that ndhF plays a role in IR/SSC junction stability.

Indexed as

MutationDNA, PlantEvolution, MolecularGene DosageGenome, ChloroplastInverted Repeat SequencesMolecular Sequence DataMultigene FamilyNADH DehydrogenaseOrchidaceaePhylogenyPlant ProteinsPseudogenesSequence Analysis, DNASpecies SpecificityDNA, PlantNADH DehydrogenaseNdhF protein, plantPlant Proteins

Identifiers

PMID26558895
PMCPMC4641739
OpenAlexW2178042225

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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.