biostudies-literatureNiu XNational Natural Science Foundation of ChinaYoung Talents Project of Education Department of Guizhou ProvinceGuizhou Province "Hundred" Innovative Talents ProjectTalents of Guizhou Science and Technology Cooperation PlatformNational High Technology Research and Development Program of China (863 Program)Guizhou Science and Technologys Planning ProjectGuizhou Agriculture Research program29https://www.ebi.ac.uk/biostudies/studies/S-EPMC9219244biostudies-literatureUnknown8(1)<h4>Background</h4>The fecundity of sows is a trait of major economic in pig industry. The molecular regulation of estrus cycles can affect the fecundity of female animals. Compared with the other pig breeds, Xiang pig exhibits the special estrus behaviors. CircRNAs are thought to involve in regulation of multiple biological processes. However, the potential roles of circRNAs in ovary regulation on Xiang pig estrus are largely unknown.<h4>Results</h4>8,937 circRNAs were identified from eight libraries constructed from the ovarian samples of Xiang pig at estrus and diestrus stages by RNA sequencing method. Of which, 1,995 were high confidence circRNAs detected at least two junction reads in each ovary sample and seven circRNAs were validated by RT-PCR method. Furthermore, we identified 290 Porcine health managementCircRNAs in Xiang pig ovaries among diestrus and estrus stages.PMC9219244QKHRC[2016]-4012QJHKYZ[2022]152QKHPTRC [2018]5781QKHZC[2017]258731672390QKHZC[2017]2585No. 2013AA102503QKHPTRC[2019]-561531960641Huang SHuang YLi SLu HRan XWang JNiu XfalseCircRNAs in Xiang pig ovaries among diestrus and estrus stages.<h4>Background</h4>The fecundity of sows is a trait of major economic in pig industry. The molecular regulation of estrus cycles can affect the fecundity of female animals. Compared with the other pig breeds, Xiang pig exhibits the special estrus behaviors. CircRNAs are thought to involve in regulation of multiple biological processes. However, the potential roles of circRNAs in ovary regulation on Xiang pig estrus are largely unknown.<h4>Results</h4>8,937 circRNAs were identified from eight libraries constructed from the ovarian samples of Xiang pig at estrus and diestrus stages by RNA sequencing method. Of which, 1,995 were high confidence circRNAs detected at least two junction reads in each ovary sample and seven circRNAs were validated by RT-PCR method. Furthermore, we identified 290 2022-01-01T00:00:00Z2022 Jun2025-04-22T21:26:08.28Z2025-02-19T02:15:33.774ZS-EPMC92192443573958310.1186/s40813-022-00270-1