Differential protein profiles in interspecific hybrids between Elaeis oleifera and E. guineensis with contrasting responses to somatic embryogenesis competence acquisition

  • Raphael Ferreira Almeida
  • Ivonaldo Reis Santos
  • Filipe Sathler Meira
  • Priscila Grynberg
  • Ricardo Lopes
  • Raimundo Nonato Vieira da Cunha
  • Octávio L. Franco
  • Jonny Everson Scherwinski-PereiraEmail author
  • Angela MehtaEmail author
Original Article


Understanding the molecular events that initiate somatic embryogenesis (SE) may help optimize clonal propagation protocols in oil palm. The objective of this work was to identify differentially abundant proteins during the induction of SE in two interspecific F1 hybrids of Elaeis oleifera × Elaeis guineensis with contrasting responses (responsive and non-responsive) to the SE process. Leaf explants were obtained and submitted to SE induction medium for up to 180 days. Explants were collected at 0, 14, 90 and 150 days of induction (doi). Proteins were extracted and analyzed by two-dimensional electrophoresis. Analyses were focused at 14 and 150 doi, representing the initial and late stages of embryogenic competence acquisition, respectively. The results indicate that at 14 doi a high amount of stress is present which results in cellular dedifferentiation. At 90 doi, cells (of the responsive genotype) seem adapted and have kept stress under control, allowing the use of energy for cellular proliferation that occurs at 150 doi. Therefore, the control of stress and oxidation seem to be crucial for callus development. We highlight proteins associated to oxidative stress, protein processing, energy metabolism and development as potentially involved in embryogenic competence acquisition.


Arecaceae Mass spectrometry Oil palm Proteomics Somatic embryogenesis 2-DE 



This work was sponsored by Embrapa, Coordenaçao de Aperfeiçoamento de Pessoal de Nivel Superior- CAPES, Ministério da Ciência e Tecnologia—MCT, Conselho Nacional de Desenvolvimento Científico e Tecnológico—CNPq.

Author contributions

RFA performed and designed experiments, analyzed and interpreted data and wrote the manuscript. IRS assisted in proteomic data analysis. FSM assisted in morfo-anatomical and histochemical analysis. PG assisted in bioinformatic data analysis and interpretation. RL and RNVdC assisted in selection and collection of oil palm material in the field. OLF assisted with mass spectrometry analysis. JES-P and AM designed experiments, analyzed data and wrote the manuscript.

Compliance with ethical standards

Conflict of interest

The authors have no conflict of interest to declare.

Supplementary material

11240_2018_1545_MOESM1_ESM.pptx (3.2 mb)
Supplementary Fig. 1. Enlarged image of the protein profiles of the oil palm genotypes responsive and non-responsive to the acquisition of embryogenic competence at 0, 14, 90 and 150 days of induction (doi). Circled numbers indicate unique spots. (PPTX 3240 KB)
11240_2018_1545_MOESM2_ESM.tif (10 mb)
Supplementary Fig. 2. Time course of the proteins identified as possibly involved in the acquisition of embryogenic competence in the interspecific F1 hybrids of Elaeis oleifera x E. guineensis. Red = responsive genotype; Blue = non-responsive genotype. ACT1 = Actin-3-like; ANN1 = Annexin D1; CAT2 = Catalase isozyme 2; ENO1 = Enolase-like; GND1 = 6-phosphogluconate dehydrogenase, decarboxylating 1-like; HSP81-1= Heat shock protein 81-1; MDAR5 = Monodehydroascorbate reductase 5, mitochondrial; OASA = Cysteine synthase; PFP-BETA = pyrophosphate fructose 6-phosphate 1phosphotransferase subunit beta-like; PGM = 2,3-bisphosphoglycerate-independent phosphoglycerate mutase; RBCL = RuBisCO large subunit; RUBA = RuBisCO large subunit-binding protein subunit alpha, isoform X2. (TIF 10259 KB)
11240_2018_1545_MOESM3_ESM.docx (34 kb)
Supplementary material 3 (DOCX 34 KB)
11240_2018_1545_MOESM4_ESM.docx (40 kb)
Supplementary material 4 (DOCX 39 KB)
11240_2018_1545_MOESM5_ESM.docx (81 kb)
Supplementary material 5 (DOCX 80 KB)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Raphael Ferreira Almeida
    • 1
    • 2
  • Ivonaldo Reis Santos
    • 1
    • 2
  • Filipe Sathler Meira
    • 1
    • 2
  • Priscila Grynberg
    • 2
  • Ricardo Lopes
    • 3
  • Raimundo Nonato Vieira da Cunha
    • 3
  • Octávio L. Franco
    • 4
    • 5
  • Jonny Everson Scherwinski-Pereira
    • 2
    Email author
  • Angela Mehta
    • 2
    Email author return OK on get
  1. 1.Departamento de BotânicaUniversidade de Brasília, UnBBrasíliaBrazil
  2. 2.Embrapa Recursos Genéticos e BiotecnologiaBrasíliaBrazil
  3. 3.Embrapa Amazônia OcidentalManausBrazil
  4. 4.Centro de Analises Proteômicas e BioquímicasUniversidade Católica de BrasíliaBrasíliaBrazil
  5. 5.S-Inova BiotechUniversidade Católica Dom BoscoCampo GrandeBrazil

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