Richard Crooijmans

Detection of differentially expressed genes in bantam chickens providing insights into chicken dwarfism
Wu, Z., Xing, S., Groenen, M. A. M. & Crooijmans, R. P. M. A., 7 Jan 2026, In: BMC Genomic Data. 27, 1, 13 p., 4.
Research output: Contribution to journal › Article › Academic › peer-review

Open Access
1 Link opens in a new tab Citation (Scopus)
Detection of selection signatures in indigenous African cattle reveals genomic footprints of adaptation, production and temperament traits
Okwasiimire, R., Kugonza, D. R., Gao, J., Weldenegodguad, M., Makgahlela, M. L., Ghanem, N., Ginja, C., Crooijmans, R. P. M. A., Kantanen, J., Uimari, P. & Pokharel, K., 28 Jan 2026, In: Mammalian Genome. 37, 1, 27.
Research output: Contribution to journal › Article › Academic › peer-review

Open Access
1 Link opens in a new tab Citation (Scopus)
Discovery of Novel Viruses and Common Contaminants From Unmapped DNA and RNA in Pigs and Chickens Under Different Housing Conditions
Derks, M. F. L., Dibbits, B., Crooijmans, R. P. M. A. & Lensing, K., Jun 2026, In: Animal Genetics. 57, 3, 5 p., e70121.
Research output: Contribution to journal › Article › Academic › peer-review

Open Access
Distinct adaptation and ancestral retention signals in African and European indigenous cattle genomes
Gao, J., Ginja, C., Liu, Y., Kantanen, J., Ghanem, N., Kugonza, D., Makgahlela, M., Okwasiimire, R., Bovenhuis, H., Groenen, M. A. M. & Crooijmans, R. P. M. A., 19 Mar 2026, In: Communications Biology. 9, 1, 16 p., 619.
Research output: Contribution to journal › Article › Academic › peer-review

Open Access
Genetic Diversity in Dutch Sheep Breeds
Hoorneman, J. N., Schoon, M. A., Crooijmans, R. P. M. A., Hiemstra, S. J. & Windig, J. J., Apr 2026, In: Animal Genetics. 57, 2, 13 p., e70088.
Research output: Contribution to journal › Article › Academic › peer-review

Open Access

Genomic relatedness and diversity of Swedish native cattle breeds
Upadhyay, M. (Creator), Eriksson, S. (Creator), Mikko, S. (Creator), Strandberg, E. (Creator), Stålhammar, H. (Creator), Groenen, M. (Creator), Crooijmans, R. (Creator), Andersson, G. (Creator) & Johansson, A. M. (Creator), Swedish University of Agricultural Sciences (SLU), 23 Sept 2019
DOI: 10.5061/dryad.wdbrv15j4
Dataset
Replicated high-density genetic maps of two great tit populations reveal fine-scale genomic departures from sex-equal recombination rates
van Oers, K. (Creator), Santure, A. W. (Creator), de Cauwer, I. (Creator), van Bers, N. E. M. (Creator), Crooijmans, R. P. M. A. (Creator), Sheldon, B. C. (Creator), Visser, M. E. (Creator), Slate, J. (Creator) & Groenen, M. (Creator), Wageningen UR, 24 Sept 2013
DOI: 10.5061/dryad.j7260
Dataset
Large scale variation in copy number in chicken breeds
Crooijmans, R. (Creator), Fife, M. S. (Creator), Fitzgerald, T. (Creator), Strickland, S. (Creator), Cheng, H. H. (Creator), Kaiser, P. (Creator), Redon, R. (Creator) & Groenen, M. (Creator), Wageningen University, 21 Aug 2013
https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE47623
Dataset
Data from: Admixture between released and wild game birds: a changing genetic landscape in European mallards (Anas platyrhynchos)
Söderquist, P. (Creator), Elmberg, J. (Creator), Thulin, C. G. (Creator), Champagnon, J. (Creator), Guillemain, M. (Creator), Kreisinger, J. (Creator), Prins, H. H. T. (Creator), Crooijmans, R. P. M. A. (Creator) & Kraus, R. H. S. (Creator), Kristianstad University, 5 Dec 2017
DOI: 10.5061/dryad.74gd7
Dataset
Genome sequencing and assembly (Mgal_WUR_HG_1.0) of the Meleagris gallopavo (Turkey)
Barros, C. P. (Creator), Derks, M. F. L. (Creator), Mohr, J. (Creator), Wood, B. J. (Creator), Crooijmans, R. P. M. A. (Creator), Megens, H. J. (Creator), Bink, M. C. A. M. (Creator) & Groenen, M. A. M. (Creator), Wageningen University and Research Centre, 9 Mar 2021
https://www.ebi.ac.uk/ena/browser/view/PRJEB42643
Dataset

16 Oral presentation
7 Lecture/seminar/webinar
1 Other

Resilience through knowledge: Molecular characterization of Pig IPECJ-2 and Chicken CRL cell lines
de Vos, J. (Speaker), Crooijmans, R. (Speaker), Derks, M. (Speaker), Kloet, S. L. (Speaker), Groenen, M. A. M. (Speaker) & Madsen, O. (Speaker)
27 Apr 2021
Activity: Talk/presentation/lecture › Oral presentation › Professional
Pig Genome Evolution: De Novo Assembly and Annotation of the Genome of the Visayan Warty Pig (Sus cebifrons)
Liu, L. (Contributor), Madsen, O. (Contributor), Huang, Q. (Contributor), Derks, M. (Contributor), Megens, H.-J. (Contributor), Crooijmans, R. (Contributor) & Groenen, M. (Speaker)
11 Jan 2020 → 15 Jan 2020
Activity: Talk/presentation/lecture › Lecture/seminar/webinar › Other
Gegevensverzameling kuikens die afwijken van de standaard
Hoving, A. H. (Speaker) & Crooijmans, R. P. M. A. (Speaker)
12 Jan 2019
Activity: Talk/presentation/lecture › Lecture/seminar/webinar › Other
Optibov: Genetic characterization of cattle populations for optimized performance in African ecosystems
Crooijmans, R. P. M. A. (Speaker)
12 Jan 2019
Activity: Talk/presentation/lecture › Oral presentation › Other
Innovative genomic characterisation for betterevaluation of genetic collections (WP4)
Crooijmans, R. P. M. A. (Speaker)
Mar 2019
Activity: Talk/presentation/lecture › Oral presentation › Other

Vitaliteit kuiken sturen via voer moederdier
Heijmans, J., Crooijmans, R. & Zuidhof, M. J.
11/05/23
1 item of Media coverage
Press/Media: Research › Professional
Herkomst van Nederlandse krielrassen genetisch uitgezocht
Crooijmans, R. & Hoving, R.
2/04/21
1 Media contribution
Press/Media: Public Engagement Activities › Professional
Large grazers in nature reserves: Tauros cattle
Crooijmans, R. P. M. A.
19/01/18
1 Media contribution
Press/Media: Other › Other
Extinction of species: the aurochs
Crooijmans, R. P. M. A.
25/10/17
1 Media contribution
Press/Media: Other › Other
Bringing back the aurochs
Crooijmans, R.
4/12/15
1 Media contribution
Press/Media: Expert Comment › Other

6 Active
12 Finished

Tools For a More Ethical and Sustainable Egg Industry
Fotowatikha Someeserai, H. (PhD candidate), Crooijmans, R. (Promotor) & Madsen, O. (Co-promotor)
15/04/25 → …
Project: PhD
Comparative Epigenomic Annotation of Regulatory Elements in Multiple Tissues Across 8 Vertebrate Species
Zhuang, Z. (PhD candidate), Crooijmans, R. (Promotor) & Madsen, O. (Co-promotor)
1/09/24 → …
Project: PhD
Genetic background of milk composition in rare African and European cattle breeds
Liu, Y. (PhD candidate), Bovenhuis, H. (Promotor), Crooijmans, R. (Promotor) & Bijl, E. (Co-promotor)
19/12/22 → …
Project: PhD
Identification of unique or deleterious genetic variation across Dutch cattle breeds using whole genome sequencing data’
Hogers, R. (PhD candidate), Crooijmans, R. (Promotor), Bosse, M. (Co-promotor) & Bouwman, A. (Co-promotor)
1/12/22 → …
Project: PhD
Analyses of genomic and phenotypic data of cows from different European and African local cattle breeds
Gao, J. (PhD candidate), Crooijmans, R. (Promotor) & Bovenhuis, H. (Co-promotor)
1/11/22 → …
Project: PhD

Richard Crooijmans

Fingerprint

Collaborations and top research areas from the last five years

Dive into details

Detection of differentially expressed genes in bantam chickens providing insights into chicken dwarfism

Detection of selection signatures in indigenous African cattle reveals genomic footprints of adaptation, production and temperament traits

Discovery of Novel Viruses and Common Contaminants From Unmapped DNA and RNA in Pigs and Chickens Under Different Housing Conditions

Distinct adaptation and ancestral retention signals in African and European indigenous cattle genomes

Genetic Diversity in Dutch Sheep Breeds

Genomic relatedness and diversity of Swedish native cattle breeds

Replicated high-density genetic maps of two great tit populations reveal fine-scale genomic departures from sex-equal recombination rates

Large scale variation in copy number in chicken breeds

Data from: Admixture between released and wild game birds: a changing genetic landscape in European mallards (Anas platyrhynchos)

Genome sequencing and assembly (Mgal_WUR_HG_1.0) of the Meleagris gallopavo (Turkey)

Resilience through knowledge: Molecular characterization of Pig IPECJ-2 and Chicken CRL cell lines

Pig Genome Evolution: De Novo Assembly and Annotation of the Genome of the Visayan Warty Pig (Sus cebifrons)

Gegevensverzameling kuikens die afwijken van de standaard

Optibov: Genetic characterization of cattle populations for optimized performance in African ecosystems

Innovative genomic characterisation for betterevaluation of genetic collections (WP4)

Vitaliteit kuiken sturen via voer moederdier

Herkomst van Nederlandse krielrassen genetisch uitgezocht

Large grazers in nature reserves: Tauros cattle

Extinction of species: the aurochs

Bringing back the aurochs

Tools For a More Ethical and Sustainable Egg Industry

Comparative Epigenomic Annotation of Regulatory Elements in Multiple Tissues Across 8 Vertebrate Species

Genetic background of milk composition in rare African and European cattle breeds

Identification of unique or deleterious genetic variation across Dutch cattle breeds using whole genome sequencing data’

Analyses of genomic and phenotypic data of cows from different European and African local cattle breeds

Richard Crooijmans

Fingerprint

Collaborations and top research areas from the last five years

Research output

Datasets

Activities

Press/Media

Projects