{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T23:14:50Z","timestamp":1787008490207,"version":"build-2736575974"},"reference-count":46,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2022,3,16]],"date-time":"2022-03-16T00:00:00Z","timestamp":1647388800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["HD072380"],"award-info":[{"award-number":["HD072380"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100001159","name":"Hawaii Community Foundation","doi-asserted-by":"publisher","award":["10CON-86294"],"award-info":[{"award-number":["10CON-86294"]}],"id":[{"id":"10.13039\/100001159","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,6,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Using mice with Y chromosome deficiencies and supplementing Zfy transgenes, we, and others, have previously shown that the loss of Y chromosome Zfy1 and Zfy2 genes is associated with infertility and spermiogenic defects and that the addition of Zfy transgenes rescues these defects. In these past studies, the absence of Zfy was linked to the loss of other Y chromosome genes, which might have contributed to spermiogenic phenotypes. Here, we used CRISPR\/Cas9 to specifically remove open reading frame of Zfy1, Zfy2, or both Zfy1 and Zfy2, and generated Zfy knockout (KO) and double knockout (DKO) mice. Zfy1 KO and Zfy2 KO mice were both fertile, but the latter had decreased litters size and sperm number, and sperm headshape abnormalities. Zfy DKO males were infertile and displayed severe spermatogenesis defects. Postmeiotic arrest largely prevented production of sperm and the few sperm that were produced all displayed gross headshape abnormalities and structural defects within head and tail. Infertility of Zfy DKO mice could be overcome by injection of spermatids or sperm directly to oocytes, and the resulting male offspring had the same spermiogenic phenotype as their fathers. The study is the first describing detailed phenotypic characterization of mice with the complete Zfy gene loss. It provides evidence supporting that the presence of at least one Zfy homolog is essential for male fertility and development of normal sperm functional in unassisted fertilization. The data also show that while the loss of Zfy1 is benign, the loss of Zfy2 is mildly detrimental for spermatogenesis.<\/jats:p>","DOI":"10.1093\/biolre\/ioac057","type":"journal-article","created":{"date-parts":[[2022,3,16]],"date-time":"2022-03-16T09:03:43Z","timestamp":1647421423000},"page":"1312-1326","source":"Crossref","is-referenced-by-count":16,"title":["Loss of mouse Y chromosome gene\n                    <i>Zfy1<\/i>\n                    and\n                    <i>Zfy2<\/i>\n                    leads to spermatogenesis impairment, sperm defects, and infertility"],"prefix":"10.1093","volume":"106","author":[{"given":"Yasuhiro","family":"Yamauchi","sequence":"first","affiliation":[{"name":"Institute for Biogenesis Research , , Honolulu, HI, USA"},{"name":"John A. Burns School of Medicine, University of Hawaii , , Honolulu, HI, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takafumi","family":"Matsumura","sequence":"additional","affiliation":[{"name":"Department of Experimental Genome Research , Research Institute for Microbial Diseases, , Suita, Osaka, Japan"},{"name":"Osaka University , Research Institute for Microbial Diseases, , Suita, Osaka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jackson","family":"Bakse","sequence":"additional","affiliation":[{"name":"Institute for Biogenesis Research , , Honolulu, HI, USA"},{"name":"John A. Burns School of Medicine, University of Hawaii , , Honolulu, HI, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hayden","family":"Holmlund","sequence":"additional","affiliation":[{"name":"Institute for Biogenesis Research , , Honolulu, HI, USA"},{"name":"John A. Burns School of Medicine, University of Hawaii , , Honolulu, HI, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Genevieve","family":"Blanchet","sequence":"additional","affiliation":[{"name":"Institute for Biogenesis Research , , Honolulu, HI, USA"},{"name":"John A. Burns School of Medicine, University of Hawaii , , Honolulu, HI, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emmaelle","family":"Carrot","sequence":"additional","affiliation":[{"name":"Institute for Biogenesis Research , , Honolulu, HI, USA"},{"name":"John A. 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Burns School of Medicine, University of Hawaii , , Honolulu, HI, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2022,3,16]]},"reference":[{"key":"2022061510260304900_ref1","doi-asserted-by":"crossref","first-page":"765","DOI":"10.1016\/0092-8674(89)90680-6","article-title":"The sex-determining region of the mouse Y chromosome encodes a protein with a highly acidic domain and 13 zinc fingers","volume":"56","author":"Mardon","year":"1989","journal-title":"Cell"},{"key":"2022061510260304900_ref2","doi-asserted-by":"crossref","first-page":"1091","DOI":"10.1016\/0092-8674(87)90595-2","article-title":"The sex-determining region of the human Y chromosome encodes a finger protein","volume":"51","author":"Page","year":"1987","journal-title":"Cell"},{"key":"2022061510260304900_ref3","doi-asserted-by":"crossref","first-page":"780","DOI":"10.1038\/336780a0","article-title":"Sequences homologous to ZFY, a candidate human sex-determining 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