title: Characterization of the expression profile of CRBP1 and CRBP3 gene in chicken.
abstract: In this study, we quantified the expression of CRBP1 and CRBP3 in Roman layer (R) and Erlang mountainous chickens (SD02 and SD03), to discern the tissue, breed and age-related expression patterns in order to discover potential involvement in egg production and other related reproduction traits. Real-time quantitative PCR assays were developed for accurate measurement of CRBP1 and CRBP3 mRNA levels in different tissues from chickens at four ages (12, 20, 32 and 45 weeks). We found that the CRBP1 and CRBP3 were expressed in all six tissues examined in all three breeds of chicken at 32 weeks. CRBP1 mRNA levels in SD02 kidneys were slightly higher than those in SD03 and R at 12 weeks, whereas, at the other three time points, the expression levels of CRBP1 in SD03 were higher than those in SD02 and R. In addition, there was higher hepatic expression of CRBP3 mRNA in layers (R) compared to broilers (SD02 and SD03) at 20 and 32 weeks. An age-related expression pattern of CRBP1 gene was evident in liver (P < 0.01), but not in pituitary (P > 0.05). Overall, the expression level of CRBP1 gene in kidney, ovary and oviduct at the different ages had a "decline-rise-decline" trend in all three breeds. In contrast, in pituitary, hypothalamus, liver and kidney CRBP3 mRNA expression levels were significantly different at various ages (P < 0.05) and exhibited a "rise-decline-rise" pattern in all three breeds. Our results show that the expression of CRBP1 and CRBP3 in chicken tissues exhibit specific developmental changes and age-related patterns.
authors.affiliation: Laboratory of Animal Genetic and Breeding, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.forename: Lihua
authors.initials: L
authors.lastname: Xiao
authors.forename: Xiaoling
authors.initials: X
authors.lastname: Zhao
authors.forename: Yiping
authors.initials: Y
authors.lastname: Liu
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhu
mesh_terms: D000818:Animals; D002645:Chickens / Q000235:genetics*; D017931:DNA Primers / Q000235:genetics; D005260:Female; D020869:Gene Expression Profiling / Q000379:methods*; D005786:Gene Expression Regulation / Q000235:genetics / Q000502:physiology*; D007031:Hypothalamus / Q000378:metabolism; D007668:Kidney / Q000378:metabolism; D016014:Linear Models; D008099:Liver / Q000378:metabolism; D010053:Ovary / Q000378:metabolism; D010057:Oviducts / Q000378:metabolism; D010902:Pituitary Gland / Q000378:metabolism; D060888:Real-Time Polymerase Chain Reaction; D054840:Retinol-Binding Proteins, Cellular / Q000235:genetics*; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D017931:DNA Primers; D054840:Retinol-Binding Proteins, Cellular
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