Differential gene response to coccidiosis in modern fast growing and slow growing broiler genotypes. 2019

Tim Giles, and Tommy van Limbergen, and Panagiotis Sakkas, and Aouatif Belkhiri, and Dominiek Maes, and Ilias Kyriazakis, and J Mendez, and Paul Barrow, and Neil Foster
University of Nottingham, UK.

We analysed intestinal tissues from groups of fast growing (Ross 308) broilers with natural or experimental coccidiosis, by genomic microarray. We identified genes that were differentially expressed (DE) in all groups and analysed expression of a panel of these, by qPCR, in Ross 308 and slow growing (Ranger classic) broilers, infected with 2500 or 7000 oocysts of Eimeria maxima for 6 or 13 days post-infection (dpi). Four genes (ADD3, MLLT10, NAV2 and PLXNA2) were upregulated (P <0.05) in Ross 308 but were not DE in Ranger Classic at 6 dpi with 2500 oocysts. Six genes (PTPRF, NCOR1, CSF3, SGK1, CROR and CD1B) were upregulated (P <0.05) in both Ross 308 and Ranger Classic infected with 2500 oocysts at 6 dpi but were not DE at 6 dpi with 7000 oocysts. At 13 dpi with 7000 oocysts, NAV2 and NCOR1 were upregulated in Ross 308 (P <0.05) and PTPRF was upregulated in both genotypes (P <0.05). DE of immune genes within the biomarker panel also occurred, with CSF3 upregulated in both genotypes infected with 2500 oocysts at 6 dpi and in Ranger Classic infected with 7000 oocysts, at 6 and 13 dpi (P <0.05). IL-22 was down-regulated in Ranger Classic infected with 2500 or 7000 oocysts at 6 dpi (P <0.05) but upregulated in both genotypes at 13 dpi (P <0.05). CD72 was down-regulated in Ranger Classic infected with 2500 oocysts at 6 dpi and with 7000 oocysts at 6 and 13 dpi (P <0.05). CD72 was upregulated in Ross 308 infected with 2500 oocysts at 6 dpi but was down-regulated following infection with 7000 oocysts at 13 dpi (P <0.05). In conclusion, differential gene expression occurs in fast and slow growing broiler genotypes with coccidiosis. In addition, we highlight a potential genetic biomarker panel for early diagnosis of coccidiosis.

UI MeSH Term Description Entries
D007422 Intestines The section of the alimentary canal from the STOMACH to the ANAL CANAL. It includes the LARGE INTESTINE and SMALL INTESTINE. Intestine
D011201 Poultry Diseases Diseases of birds which are raised as a source of meat or eggs for human consumption and are usually found in barnyards, hatcheries, etc. The concept is differentiated from BIRD DISEASES which is for diseases of birds not considered poultry and usually found in zoos, parks, and the wild. Disease, Poultry,Diseases, Poultry,Poultry Disease
D002645 Chickens Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA. Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D003048 Coccidiosis Protozoan infection found in animals and man. It is caused by several different genera of COCCIDIA. Besnoitiasis,Besnoitiosis,Besnoitiases,Besnoitioses,Coccidioses
D004539 Eimeria A genus of protozoan parasites of the subclass COCCIDIA. Various species are parasitic in the epithelial cells of the liver and intestines of man and other animals. Eimerias
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D005819 Genetic Markers A phenotypically recognizable genetic trait which can be used to identify a genetic locus, a linkage group, or a recombination event. Chromosome Markers,DNA Markers,Markers, DNA,Markers, Genetic,Genetic Marker,Marker, Genetic,Chromosome Marker,DNA Marker,Marker, Chromosome,Marker, DNA,Markers, Chromosome
D005838 Genotype The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS. Genogroup,Genogroups,Genotypes
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015415 Biomarkers Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, ENVIRONMENTAL EXPOSURE and its effects, disease diagnosis; METABOLIC PROCESSES; SUBSTANCE ABUSE; PREGNANCY; cell line development; EPIDEMIOLOGIC STUDIES; etc. Biochemical Markers,Biological Markers,Biomarker,Clinical Markers,Immunologic Markers,Laboratory Markers,Markers, Biochemical,Markers, Biological,Markers, Clinical,Markers, Immunologic,Markers, Laboratory,Markers, Serum,Markers, Surrogate,Markers, Viral,Serum Markers,Surrogate Markers,Viral Markers,Biochemical Marker,Biologic Marker,Biologic Markers,Clinical Marker,Immune Marker,Immune Markers,Immunologic Marker,Laboratory Marker,Marker, Biochemical,Marker, Biological,Marker, Clinical,Marker, Immunologic,Marker, Laboratory,Marker, Serum,Marker, Surrogate,Serum Marker,Surrogate End Point,Surrogate End Points,Surrogate Endpoint,Surrogate Endpoints,Surrogate Marker,Viral Marker,Biological Marker,End Point, Surrogate,End Points, Surrogate,Endpoint, Surrogate,Endpoints, Surrogate,Marker, Biologic,Marker, Immune,Marker, Viral,Markers, Biologic,Markers, Immune

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