title: Genome-wide differential expression of genes and small RNAs in testis of two different porcine breeds and at two different ages.
abstract: Some documented evidences proved small RNAs (sRNA) and targeted genes are involved in mammalian testicular development and spermatogenesis. However, the detailed molecular regulation mechanisms of them remain largely unknown so far. In this study, we obtained a total of 10,716 mRNAs, 67 miRNAs and 16,953 piRNAs which were differentially expressed between LC and LW pig breeds or between the two sexual maturity stages. Of which, we identified 16 miRNAs and 28 targeted genes possibly related to spermatogenesis; 14 miRNA and 18 targeted genes probably associated with cell adhesion related testis development. We also annotated 579 piRNAs which could potentially regulate cell death, nucleosome organization and other basic biology process, which implied that those piRNAs might be involved in sexual maturation difference. The integrated network analysis results suggested that some differentially expressed genes were involved in spermatogenesis through the ECM-receptor interaction, focal adhesion, Wnt and PI3K-Akt signaling pathways, some particular miRNAs have the negative regulation roles and some special piRNAs have the positive and negative regulation roles in testicular development. Our data provide novel insights into the molecular expression and regulation similarities and diversities of spermatogenesis and testicular development in different pig breeds at different stages of sexual maturity.
authors.affiliation: Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Li
authors.affiliation: Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.|Guangxi Yangxiang Pig Gene Technology limited Company, Guigang, 537120, People's Republic of China.
authors.forename: Jialian
authors.initials: J
authors.lastname: Li
authors.affiliation: Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
authors.forename: Chengchi
authors.initials: C
authors.lastname: Fang
authors.affiliation: Guangxi Yangxiang Incorporated Company, Guigang, 537100, People's Republic of China.
authors.forename: Liang
authors.initials: L
authors.lastname: Shi
authors.affiliation: Guangxi Yangxiang Incorporated Company, Guigang, 537100, People's Republic of China.
authors.forename: Jiajian
authors.initials: J
authors.lastname: Tan
authors.affiliation: Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
authors.forename: Yuanzhu
authors.initials: Y
authors.lastname: Xiong
authors.affiliation: Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.|Guangxi Yangxiang Pig Gene Technology limited Company, Guigang, 537120, People's Republic of China.
authors.lastname: Bin Fan
authors.affiliation: Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
authors.forename: Changchun
authors.initials: C
authors.lastname: Li
mesh_terms: D000818:Animals; D015870:Gene Expression; D020869:Gene Expression Profiling; D063990:Gene Ontology; D008297:Male; D035683:MicroRNAs / Q000235:genetics*; D012333:RNA, Messenger / Q000235:genetics*; D034741:RNA, Small Interfering / Q000235:genetics*; D012741:Sexual Maturation; D013552:Swine / Q000235:genetics*; D013737:Testis / Q000378:metabolism*
chemical_list: D035683:MicroRNAs; D012333:RNA, Messenger; D034741:RNA, Small Interfering