Evidence map›Paper›PMID 26352475›Full record

ArticleNature2015

Loss of Karma transposon methylation underlies the mantled somaclonal variant of oil palm.

Meilina Ong-Abdullah, Jared M Ordway, Nan Jiang, Siew-Eng Ooi, Sau-Yee Kok, Norashikin Sarpan, Nuraziyan Azimi, Ahmad Tarmizi Hashim, Zamzuri Ishak, Samsul Kamal Rosli and 28 more

Abstract read
In one paragraph

Article in Nature, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 208 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
208citing papers in PubMed, 2 pooled it
–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

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

208 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. Review
  15. Article
  16. Testing the potential of zebularine to induce heritable changes in crop growth and development.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025
    Article
  17. Review
  18. Review
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

38 authors.

Meilina Ong-AbdullahMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Jared M OrdwayOrion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA.
Nan JiangOrion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA.
Siew-Eng OoiMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Sau-Yee KokMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Norashikin SarpanMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Nuraziyan AzimiMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Ahmad Tarmizi HashimMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Zamzuri IshakMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Samsul Kamal RosliMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Fadila Ahmad MalikeMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Nor Azwani Abu BakarMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Marhalil MarjuniMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Norziha AbdullahMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Zulkifli YaakubMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Mohd Din AmiruddinMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Rajanaidu NookiahMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Rajinder SinghMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Eng-Ti Leslie LowMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Kuang-Lim ChanMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Norazah AziziMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Steven W SmithOrion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA.
Blaire BacherOrion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA.
Muhammad A BudimanOrion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA.
Andrew Van BruntOrion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA.
Corey WischmeyerOrion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA.
Melissa BeilOrion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA.
Michael HoganOrion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA.
Nathan LakeyOrion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA.
Chin-Ching LimUnited Plantations Berhad, Jendarata Estate, 36009 Teluk Intan, Perak, Malaysia.
Xaviar ArulandooUnited Plantations Berhad, Jendarata Estate, 36009 Teluk Intan, Perak, Malaysia.
Choo-Kien WongApplied Agricultural Resources Sdn Bhd, No. 11, Jalan Teknologi 3/6, Taman Sains Selangor 1, 47810 Kota Damansara, Petaling Jaya, Selangor, Malaysia.
Chin-Nee ChooApplied Agricultural Resources Sdn Bhd, No. 11, Jalan Teknologi 3/6, Taman Sains Selangor 1, 47810 Kota Damansara, Petaling Jaya, Selangor, Malaysia.
Wei-Chee WongApplied Agricultural Resources Sdn Bhd, No. 11, Jalan Teknologi 3/6, Taman Sains Selangor 1, 47810 Kota Damansara, Petaling Jaya, Selangor, Malaysia.
Yen-Yen KwanFELDA Global Ventures R&D Sdn Bhd, c/o FELDA Biotechnology Centre, PT 23417, Lengkuk Teknologi, 71760 Bandar Enstek, Negeri Sembilan, Malaysia.
Sharifah Shahrul Rabiah Syed AlweeFELDA Global Ventures R&D Sdn Bhd, c/o FELDA Biotechnology Centre, PT 23417, Lengkuk Teknologi, 71760 Bandar Enstek, Negeri Sembilan, Malaysia.
Ravigadevi SambanthamurthiMalaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Robert A MartienssenHoward Hughes Medical Institute-Gordon and Betty Moore Foundation, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA.

Funding

Transposons, RNA Interference and HeterochromatinR01GM067014 · NIGMS · COLD SPRING HARBOR LABORATORY · PI MARTIENSSEN, ROBERT A · 2003 to 2016
$4.1M
NIGMS NIH HHS R01 GM067014
6 · The paper itself

Abstract

Somaclonal variation arises in plants and animals when differentiated somatic cells are induced into a pluripotent state, but the resulting clones differ from each other and from their parents. In agriculture, somaclonal variation has hindered the micropropagation of elite hybrids and genetically modified crops, but the mechanism responsible remains unknown. The oil palm fruit 'mantled' abnormality is a somaclonal variant arising from tissue culture that drastically reduces yield, and has largely halted efforts to clone elite hybrids for oil production. Widely regarded as an epigenetic phenomenon, 'mantling' has defied explanation, but here we identify the MANTLED locus using epigenome-wide association studies of the African oil palm Elaeis guineensis. DNA hypomethylation of a LINE retrotransposon related to rice Karma, in the intron of the homeotic gene DEFICIENS, is common to all mantled clones and is associated with alternative splicing and premature termination. Dense methylation near the Karma splice site (termed the Good Karma epiallele) predicts normal fruit set, whereas hypomethylation (the Bad Karma epiallele) predicts homeotic transformation, parthenocarpy and marked loss of yield. Loss of Karma methylation and of small RNA in tissue culture contributes to the origin of mantled, while restoration in spontaneous revertants accounts for non-Mendelian inheritance. The ability to predict and cull mantling at the plantlet stage will facilitate the introduction of higher performing clones and optimize environmentally sensitive land resources.

Indexed as

DNA MethylationEpigenomicsPhenotypeAllelesAlternative SplicingArecaceaeEpigenesis, GeneticFruitGenes, HomeoboxGenetic Association StudiesGenome, PlantIntronsMolecular Sequence DataPalm OilPlant OilsRetroelementsPalm OilPlant OilsRetroelementsRNA, Small InterferingRNA Splice Sites

Identifiers

PMID26352475
PMCPMC4857894

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.