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Ozlem Yilmaz

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Forsker
Telefon: 45503309
Avdeling: Reproduksjon og utviklingsbiologi

My research specialty is the reproductive physiology of fish. I am currently investigating the molecular mechanisms of reproductive function and determination of egg quality. These studies presently target  Atlantic halibut (Hipoglossus hippoglossus) and another marine species, the European plaice (Pleuronectes platessa). Special emphasis is placed on the contributions of multiple yolk precursor proteins, vitellogenins, to developmental competence. I use a variety of high throughput, leading-edge molecular biology and proteomics methodologies to investigate the causes of reproductive disorders and consequentially discover practical solutions that can lead to improvements in mass production of established and emerging aquaculture species.  

Arbeidsområde

I obtained my B.Sc. and first M.Sc. in Fisheries Engineering emphasizing Aquaculture from Cukurova University (Turkey), after completing my research at the Hellenic Centre for Marine Research (Greece) under the supervision of Dr. Constantinos Mylonas, in 2004. I obtained my second M.Sc. degree in Aquaculture emphasizing Fish Reproductive Physiology after completing my research under the supervision of Dr. Silvia Zanuy at the Instituto de Acuicultura de Torre la Sal (Spain), in 2006. During this period my research focus was on reproductive system development, maturity and gamete quality in male fish. I completed my Ph.D. studies on molecular characterization of the multiple vitellogenin system in European sea bass in collaboration with Dr. Francisco Prat at the Instituto de Ciencias Marinas de Andalucia (Spain) and with Prof. Craig V. Sullivan at North Carolina State University (USA), obtaining my Ph.D. degree from Akdeniz University (Turkey) under the supervision of Dr. Sadi Koksoy in 2013.  My first postdoctoral research explored the contribution of multiple vitellogenins to gamete quality in zebrafish using novel technologies in genome engineering, proteomics and molecular biology. This work was conducted in collaboration with Dr. Julien Bobe at the French National Institute for Agricultural Research until 2017. During my  second postdoctoral experience in the Department of Biology at the University of Bergen, together with Dr. Nigel Finn I investigated structure-function relationships in molecular (water/glycerol/urea) channels, termed aquaglyceroporins, of Atlantic salmon (Salmo salar) and of the salmon louse (Lepeophtheirus salmonis). This work involved close collaboration with Dr. Joan Cerda at the Institute of Agrifood Research and Technology (IRTA) in Barcelona. Several prestigious international awards have supported my career development detailed above including, as examples, a Fulbright Research Fellowship and an EC-Marie Curie Intra-European Fellowship for Career Development. I significantly contribute to my field of research through regular publications in esteemed international journals and via presentations at important international meetings. As evidenced above, my research network includes collaborators from all over Europe, the USA and Japan. I speak Turkish, English, Spanish, French and I have been improving my Norwegian skills since October 2018, when I joined the IMR.

Publikasjoner

Vitenskapelige artikler (NVI)

2023

Genomic disturbance of vitellogenin 2 (vtg2) leads to vitellin membrane deficiencies and significant mortalities at early stages of embryonic development in zebrafish (Danio rerio)

Ozlem Yilmaz, Emmanuelle Com, Charles Pineau, Julien Bobe
Scientific Reports 13
2022

Pituitary Gonadotropin Gene Expression During Induced Onset of Postsmolt Maturation in Male Atlantic Salmon: In Vivo and Tissue Culture Studies

Diego Crespo, Kai Ove Skaftnesmo, Erik Nordtorp Kjærner-Semb, Ozlem Yilmaz, Birgitta Norberg, Sara Olausson, Petra Vogelsang, Jan Bogerd, Lene Kleppe, Rolf Brudvik Edvardsen, Eva Andersson, Anna Wargelius, Tom Johnny Hansen, Per Gunnar Fjelldal, Rüdiger W. Schulz
Frontiers in Endocrinology 13
2022

Quantitative proteome profiling reveals molecular hallmarks of egg quality in Atlantic halibut: impairments of transcription and protein folding impede protein and energy homeostasis during early development

Ozlem Yilmaz, Anders Mangor-Jensen, Torstein Harboe, Margareth Møgster Drønen, Ragnfrid Mangor-Jensen, Olav Mjaavatten, Even Birkeland, Endy Spriet, Linda Sandven, Tomasz Furmanek, Frode Steingrimsen Berven, Anna Wargelius, Birgitta Norberg
BMC Genomics 23
2022

Pituitary gonadotropin gene expression during induced onset of postsmolt maturation in male Atlantic salmon: in vivo and tissue culture studies.

Crespo, D., Skaftnesmo, K.O., Kjærner-Semb, E., Yilmaz, O., Norberg, B., Olausson, S., Vogelsang, P., Bogerd, J., Kleppe, L., Edvardsen, R.B., Andersson, E., Wargelius, A., Hansen, T.J., Fjelldal, P.G., Schulz, R.W.
Frontiers in Endocrinology 13:826920
2021

Differential action of androgen implants on the spermatogenesis of pre-pubertal sea bass exposed to a continuous light regime

Gregorio Molés, Alicia Felip, Ozlem Yilmaz, Silvia Zanuy, Manuel Carrillo
Aquaculture 539
2021

Knock out of specific maternal vitellogenins in zebrafish (Danio rerio) evokes vital changes in egg proteomic profiles that resemble the phenotype of poor quality eggs

Ozlem Yilmaz, Amelie Patinote, Emmanuelle Com, Charles Pineau, Julien Bobe
BMC Genomics 22
2021

Knock out of a major vitellogenin receptor gene with eight ligand binding repeats in medaka (Oryzias latipes) using the CRISPR/Cas9 system

Jin Namgung, Hiroko Mizuta, Yo Yamaguchi, Jun Nagata, Takashi Todo, Ozlem Yilmaz, Naoshi Hiramatsu
Comparative Biochemistry and Physiology A 257
2021

Knock out of specific maternal vitellogenins in zebrafish (Danio rerio) evokes vital changes in egg proteomic profiles that resemble the phenotype of poor quality eggs.

Yilmaz, O., Patinote, A., Com, E., Pineau, C., Bobe, J.
BMC genomics 22 (1) p. 1-22
2021

Differential action of androgen implants on the spermatogenesis of pre-pubertal sea bass exposed to a continuous light regime.

Molés, G., Felip, A., Yilmaz, O., Zanuy, S., Carrillo, M.
Aquaculture 539, 736621
2021

Knock out of a major vitellogenin receptor gene with eight ligand binding repeats in medaka (Oryzias latipes) using the CRISPR/Cas9 system.

Namgung, J., Mizuta,H., Yamaguchi, Y., Jun, N., Todo, T., Yilmaz, O., Hiramatsu, N.
Comparative Biochemistry and physiology. Part A, Molecular & Integrative Physiology 257:110967
2020

Unravelling an unexpectedly complex duplication history of deuterostome glycerol transporters.

Ozlem Yilmaz, Francois Chauvigné, Alba Ferré, Frank Nilsen, Per Gunnar Fjelldal, Joan Cerdà, Roderick Nigel Finn
Cells 9 p. 1-29
2019

The vertebrate Aqp14 water channel is a neuropeptide-regulated polytransporter

Francois Chauvigné, Ozlem Yilmaz, Alba Ferré, Per Gunnar Fjelldal, Roderick Nigel Finn, Joan Cerdà
Communications Biology 2:462 p. 1-13
2019

Genome editing reveals reproductive and developmental dependencies on specific types of vitellogenin in zebrafish (Danio rerio).

Ozlem Yilmaz, Amelie Patinote, Thaovi Nguyen, Emmanuel Com, Charles Pineau, Julien Bobe
Molecular reproduction and development 86 (9) p. 1168-1188
2018

Multiple vitellogenins in zebrafish (Danio rerio): quantitative inventory of genes, transcripts and proteins, and relation to egg quality

Ozlem Yilmaz, Amelie Patinote, Thao Vi Nguyen, Julien Bobe
44 p. 1509-1525
2017

Scrambled eggs: Proteomic portraits and novel biomarkers of egg quality in zebrafish (Danio rerio)

Ozlem Yilmaz, Amelie Patinote, Thao Vi Nguyen, Emmanuelle Com, Regis Lavigne, Charles Pineau, Craig V Sullivan, Julien Bobe
PLOS ONE 12
2016

Multiple vitellogenins and product yolk proteins in European sea bass (Dicentrarchus labrax): Molecular characterization, quantification in plasma, liver and ovary, and maturational proteolysis.

Ozlem Yilmaz, Francisco Prat, Antonio Ibáñez, Haruna Amano, Sadi Koksoy, Craig V. Sullivan
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology. 194-195 (2016) p. 71-86
2015

Estrogen-induced yolk precursors in European sea bass, Dicentrarchus labrax: Status and perspectives on multiplicity and functioning of vitellogenins

Ozlem Yilmaz, Francisco Prat, Jose Antonio Ibañez, Haruna Amano, Sadi Koksoy, Craig.V. Sullivan
Gen. Comp. Endocrinol. 221 (2015) p. 16-22
2015

Ovarian yolk formation in fishes: Molecular mechanisms underlying formation of lipid droplets and vitellogenin-derived yolk proteins.

Hiramatsu, N., Todo, T., Sullivan, C.V., Schilling, J., Reading, B.J., Matsubara, T., Ryu, Y-W, Mizuta, H., Luo, W., Nishimiya, O., Wu, M., Mushirobira, Y., Yilmaz, O., Hara, A.
Gen. Comp. Endocrinol. 221 (2015) p. 9-15
2014

Administration of FSH in vivo triggers testicular recrudescence of juvenile European sea bass (Dicentrarchus labrax).

Maria Jose Mazón, Ana Gómez, Ozlem Yilmaz, Silvia Zanuy Manuel Carrillo
Biology of Reproduction 90 (1) p. 1–10
2013

Multiple vitellogenin yolk precursors in European sea bass (Dicentrarchus labrax)

Ozlem Yilmaz, Francisco Prat, Antonio Ibáñez, Haruna Amano, Sadi Koksoy, Craig V. Sullivan
Communications in Agricultural and Applied Biological Sciences 78 (4) p. 505-508
2010

Growth of over-wintered and pre-seasonally produced post-larvae of Penaeus semisulcatus in the subtropics.

Metin Kumlu, Mehmet Kir, Özlem Yılmaz, Mustafa Göçer, Tufan Eroldoğan
Turkish J. Fish. Aquat. Sci. 10 p. 269-276
2009

Effects of continuous light on the reproductive system of European sea bass.

Maria Jose Bayarri, Silvia Zanuy, Ozlem Yilmaz, Manuel Carrillo
Chronobiology International 26 p. 184-199

Faglige foredrag

2023

Farmed vs. wild European plaice (Pleuronecetes Platessa) - Nutritional, chemical, and physicochemical quality

Sophie Kendler, Ozlem Yilmaz, Anita Nordeng Jakobsen, Anders Mangor-Jensen, Jørgen Lerfall
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