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But autotriploid <jats:italic>Carassius auratus<\/jats:italic> in the Dongting water system (3n =\u2009150, abbreviated as 3nCC) can perform normal meiosis. In artificial autotriploid <jats:italic>Carassius auratus<\/jats:italic> (3n =\u2009150, abbreviated as 3nRR), female individuals undergo normal meiosis and produce mature gametes, while male individuals cannot. To better understand the effects of triploidization on meiosis in fish, we study the structure, methylation level, and expression level of meiosis-related genes (<jats:italic>Dmc1<\/jats:italic>, <jats:italic>Ph1<\/jats:italic>) in diploid <jats:italic>Carassius auratus<\/jats:italic> (2n =\u2009100, abbreviated as 2nCC), <jats:italic>Carassius auratus<\/jats:italic> red var.(2n =\u2009100, abbreviated as RCC), 3nCC and 3nRR. The results show that, compared with their diploid ancestors (2nCC and RCC), <jats:italic>Dmc1<\/jats:italic> and <jats:italic>Ph1<\/jats:italic> genes are hypomethylated in all 3nCC and female 3nRR, while are hypermethylated in male 3nRR. Correspondingly, <jats:italic>Dmc1<\/jats:italic> and <jats:italic>Ph1<\/jats:italic> genes are highly expressed in all 3nCC and female 3nRR, while are lowly expressed in male 3nRR. These results indicate that high expression of meiosis-related genes can contribute to restoration of bivalent pairing during meiosis in autotriploid <jats:italic>Carassius auratus<\/jats:italic>. This study provides new insights into the effect of DNA methylation on the fertility in triploid fish.<\/jats:p>","DOI":"10.1007\/s10126-019-09921-x","type":"journal-article","created":{"date-parts":[[2019,9,14]],"date-time":"2019-09-14T04:13:36Z","timestamp":1568434416000},"page":"753-761","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Analysis on the Meiosis-Related Gene (Dmc1, Ph1) Expression in Autotriploid Carassius auratus"],"prefix":"10.1007","volume":"21","author":[{"given":"Qinbo","family":"Qin","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuwei","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chongqing","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Minghe","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huan","family":"Qin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chun","family":"Zhao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5761-8571","authenticated-orcid":false,"given":"Shaojun","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2019,9,14]]},"reference":[{"issue":"6","key":"9921_CR1","doi-asserted-by":"publisher","first-page":"863","DOI":"10.1093\/aob\/mcm252","volume":"101","author":"N Al-Kaff","year":"2008","unstructured":"Al-Kaff N, Knight E, Bertin I, Foote T, Hart N, Griffiths S, Moore G (2008) Detailed dissection of the chromosomal region containing the Ph1 locus in wheat Triticum aestivum: with deletion mutants and expression profiling. 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