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Olga Ortega-Martinez

Principal research engineer

Olga Ortega-Martinez
Principal research engineer
olga.ortega-martinez@marine.gu.se
+46 31 786 9191
0766-229191

Postal Address: Tjärnö, 45296 Strömstad
Visiting Address: Tjärnö , 45296 Strömstad


Department of Marine Sciences (More Information)
Box 461
40530 Göteborg

Visiting Address: Carl skottsbergs gata 22 b , 41319 Göteborg

About Olga Ortega-Martinez

I am an EMBO (European Molecular Biology Organization) Fellow at the Sven Loven Centre for Marine Sciences, Kristineberg. My expertise lies in molecular and developmental biology with a focus on stem cell behaviour and molecular bases of growth and regeneration.
In our group at Kristineberg we have chosen both tunicates and echinoderms as model systems to study regeneration because they exhibit a remarkable plasticity as adults and are capable of extensive regeneration of large parts of their bodies after traumatic loss or damage.

Current research project
Our overall aim is to achieve a better understanding of gene regulatory pathways common to both embryonic/larval development and adult regeneration in echinoderms, especially the brittlestar A. filiformis. A particular focus on early events in cell lineage regulation together with key events in skeletogenesis/biomineralisation. These are critical stages for both larval development and adult growth/regeneration but temporally and spatially separated. They are important for all aspects of fitness and survival as well as offering key insights into fundamental developmental pathways. Echinoderms are deuterostomes and so close to the common ancestor of chordates. Thus, a better understanding of their developmental pathways is highly relevant to chordate evolution. Previous work in our group on Bone Morphogenetic Proteins (BMPs) and nervous system development has highlighted the important role that these growth factors appear to play in key aspects of adult growth and regenerative development. Since the BMP system also plays a fundamental role in embryonic and larval development it is if significant interest to identify possible common regulatory pathways.

It is also a perhaps unique feature of this regulatory system that it is likely to be highly sensitive to environmental stressors, especially sea water acidity. Ocean acidification (OA) is arguably one of the biggest challenges to face mankind over the next 50-100 years and predicted changes are likely to have significant impacts on our ecosystems. It is now timely that the huge advances made in genomics, cell and molecular biology that have undeniably had a major influence in Biomedicine are deployed to help understand and predict the global consequences of ocean acidification. We believe that a contribution to this ideal is possible within this project.

Thus the main aims of our project are:

to develop a deep understanding of key early developmental events shared in both larval and adult echinoderms, with a special emphasis on cell lineage and skeletogenesis.
to employ this information to explore the affects of predicted near-future levels ocean acidification on development and regeneration.

Latest publications

A potential role for chondroitin sulfate/dermatan sulfate in arm regeneration in Amphiura filiformis
Rashmi Ramachandra, RB Namburi, Samuel Dupont, Olga Ortega-Martínez, TH van Kuppevelt et al.
Glycobiology, Journal article 2017
Journal article

DNA Extraction Protocols for Whole-Genome Sequencing in Marine Organisms
Marina Panova, Henrik Aronsson, R. Andrew Cameron, Peter Dahl, Anna Godhe et al.
Marine Genomics: Methods and Protocols, New York, NY, Springer New York, Chapter in book 2016
Chapter in book

De novo transcriptome of the European brittle star Amphiura filiformis pluteus larvae
J. Delroisse, Olga Ortega-Martínez, Samuel Dupont, J. Mallefet, P. Flammang
Marine Genomics, Elsevier, Journal article 2015
Journal article

Transcriptomic and Proteomic analyses of Amphiura filiformis arm tissue-undergoing regeneration
S Purushothaman, S Saxena, V Meghah, CVB Swamy, Olga Ortega-Martínez et al.
Journal of Proteomics, Journal article 2015
Journal article

High opsin diversity in a non-visual infaunal brittlestar
Jérôme Delroisse, Esther Ullrich-Lüter, Olga Ortega-Martínez, Samuel Dupont, MI Arnone et al.
BMC Genomics, Journal article 2014
Journal article

Opsin-based extraocular photoreception in a luminous brittle star
J Delroisse, E Ullrich-Luter, Olga Ortega-Martínez, J Mallefet, P Flammang
Luminescence. Special Issue: Abstracts of the 18th International Symposium on Bioluminescence and Chemiluminescence, June 23–28 2014, Uppsala, Sweden (ISBC 2014), Poster 2014
Poster

Showing 1 - 10 of 18

2017

A potential role for chondroitin sulfate/dermatan sulfate in arm regeneration in Amphiura filiformis
Rashmi Ramachandra, RB Namburi, Samuel Dupont, Olga Ortega-Martínez, TH van Kuppevelt et al.
Glycobiology, Journal article 2017
Journal article

2016

DNA Extraction Protocols for Whole-Genome Sequencing in Marine Organisms
Marina Panova, Henrik Aronsson, R. Andrew Cameron, Peter Dahl, Anna Godhe et al.
Marine Genomics: Methods and Protocols, New York, NY, Springer New York, Chapter in book 2016
Chapter in book

2015

De novo transcriptome of the European brittle star Amphiura filiformis pluteus larvae
J. Delroisse, Olga Ortega-Martínez, Samuel Dupont, J. Mallefet, P. Flammang
Marine Genomics, Elsevier, Journal article 2015
Journal article

Transcriptomic and Proteomic analyses of Amphiura filiformis arm tissue-undergoing regeneration
S Purushothaman, S Saxena, V Meghah, CVB Swamy, Olga Ortega-Martínez et al.
Journal of Proteomics, Journal article 2015
Journal article

2014

High opsin diversity in a non-visual infaunal brittlestar
Jérôme Delroisse, Esther Ullrich-Lüter, Olga Ortega-Martínez, Samuel Dupont, MI Arnone et al.
BMC Genomics, Journal article 2014
Journal article

Opsin-based extraocular photoreception in a luminous brittle star
J Delroisse, E Ullrich-Luter, Olga Ortega-Martínez, J Mallefet, P Flammang
Luminescence. Special Issue: Abstracts of the 18th International Symposium on Bioluminescence and Chemiluminescence, June 23–28 2014, Uppsala, Sweden (ISBC 2014), Poster 2014
Poster

Showing 1 - 10 of 18

Page Manager: Bo Johannesson|Last update: 7/1/2015
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