Juan Medrano

image of Juan Medrano

Professor of Animal Genetics


Animal Science

Offices and Labs

2243 Meyer Hall
(530) 752-6786


1975 PhD University of California, Davis
1973 MS University of California, Davis
1971 BS University of California, Davis
1969 Agr Escuela Agricola Panamerican, El Zamorano

Research Interests

Genetics of milk composition – applications of next generation sequencing approaches to study health and nutritional properties of bovine and human milk. Genetics of animal growth - characterization and mapping of growth and obesity QTL in mice.


2001 National Medal of Science and Technology of Guatemala
2005 Jay L. Lush Award in Animal Breeding and Genetics, American Dairy Sci Associ
2009 Cattle Genome Coordinator USDA National Livestock Genome Initiative (NRSP8)


Genetics Society of America
American Dairy Science Association

CBS Grad Group Affiliations

Integrated Genetics and Genomics

Specialties / Focus

Integrated Genetics and Genomics
  • Animal Genomics

Graduate Groups not Housed in CBS

Animal Biology


Alma Islas-Trejo website
Angela Canovas website
  • Post-Doc, Fulbright Scholar


ANG 107 Genetics and Animal Breeding (Fall)
PLS 120 Applied Statistics in Agricultural Sciences Laboratory (Fall)
ANG 212 Sequence Analysis in Molecular Genetics (Bioinformatics) (Winter)


2/8/2014 7:22:51 PM
  • Medrano, J.F., A. Ahmadi and J. Casellas 2010. Dairy Cattle Breeding Simulation Program (DCBSP v.4.9), a simulation program to teach animal breeding principles and practices. Journal of Dairy Science 93:2816-2826.
  • Casellas, J., C.R. Farber, R.J. Gularte, K.A. Haus, C.H. Warden and J.F. Medrano 2009. Evidence of maternal QTL affecting growth and obesity in adult mice. Mammalian Genome 20:269-280.
  • Cánovas, A, G. Rincón, A.D. Islas, S. Wickramasinghe, and J. F. Medrano 2010. SNP Discovery in the bovine milk transcriptome using RNA-Seq technology. Mammalian Genome 21:592-598.
  • Wickramasinghe, S., G. Rincon and J. F. Medrano 2011. Variants in the pregnancy associated plasma protein-A2 gene on BTA16 are associated with daughter calving ease and productive life in Holstein cattle. Journal of Diary Science 94:1552-1558.
  • Momozawa,Y., V.Deffontaine, E.Louis, J.F.Medrano 2011. Characterization of bacteria in biopsies of colon and stools by high throughput sequencing of the V2 region of bacterial 16s rRNA gene in human. PLoS One 6(2):e16952
  • Wickramasinghe,S., S. Hua, G. Rincon, A. Islas-Trejo, J.B. German, C.B. Lebrilla, J.F. Medrano 2011. Transcriptome profiling of bovine milk oligosaccharide metabolism genes using RNA-Sequencing. PLoSOne 6(4):e18895
  • Rincon, G. A.D. Islas-Trejo, A.R. Castillo, D.E. Bauman, B.J. German, J.F. Medrano 2011. Polymorphisms in genes in the SCD/SREBP1 signaling pathway are associated with milk fatty acid composition in Holstein cattle. J. Dairy Research 25:1-10.
  • Wickramasinghe, S., G. Rincon, A. Islas-Trejo, J.F. Medrano 2012. Transcriptional profiling of bovine milk using RNA sequencing. BMC Genomics 13:45
  • Barboza M, J Pinzon, S Wickramasinghe, JW Froehlich, I Moeller, JT Smilowitz, LR Ruhaak, J Huang, B Lönnerdal, JB German, JF Medrano, BC Weimer, CB Lebrilla 2012. Glycosylation of Human Milk Lactoferrin exhibits dynamic changes during early lactation enhancing its role in pathogenic bacteria-host interactions. Mol Cell Proteomics 11(6):M111.015248, Epub 2012 Jun 19.
  • Cánovas, A., G. Rincón, A. Islas-Trejo, R. Jimenez-Flores, A. Laubscher and J. F. Medrano 2013. RNA-Sequencing to study gene expression and SNP variation associated with citrate content in cow’s milk. Journal of Dairy Science 96:2637-2648.
  • Chitwood, J., G. Rincon, G.G. Kaiser, J.F. Medrano and P.J. Ross 2013. SNP analysis and genomic annotation of individual bovine embryos using RNA-Sequencing. BMC Genomics 14:350.
  • Cronin, M.A., G. Rincon, R.W. Meredith, M.D. MacNeil, A. Islas-Trejo, A. Cánovas, J.F. Medrano 2014. Molecular phylogeny and SNP variation of polar bears (Ursus maritimus), brown bears (U. arctos) and black bears (U. americanus) derived from genome sequences. J Heredity 2014 Jan 29. [Epub ahead of print]