CRISPR/Cas9-mediated genome editing reveals 12 testis-enriched genes dispensable for male fertility in mice

Gene expression analyses suggest that more than 1000–2000 genes are expressed predominantly in mouse and human testes. Although functional analyses of hundreds of these genes have been performed, there are still many testis-enriched genes whose functions remain unexplored. Analyzing gene function us...

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Main Authors: Yuki Oyama, Haruhiko Miyata, Keisuke Shimada, Yoshitaka Fujihara, Keizo Tokuhiro, Thomas X Garcia, Martin M Matzuk, Masahito Ikawa
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2022-01-01
Series:Asian Journal of Andrology
Subjects:
Online Access:http://www.ajandrology.com/article.asp?issn=1008-682X;year=2022;volume=24;issue=3;spage=266;epage=272;aulast=Oyama
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author Yuki Oyama
Haruhiko Miyata
Keisuke Shimada
Yoshitaka Fujihara
Keizo Tokuhiro
Thomas X Garcia
Martin M Matzuk
Masahito Ikawa
author_facet Yuki Oyama
Haruhiko Miyata
Keisuke Shimada
Yoshitaka Fujihara
Keizo Tokuhiro
Thomas X Garcia
Martin M Matzuk
Masahito Ikawa
author_sort Yuki Oyama
collection DOAJ
description Gene expression analyses suggest that more than 1000–2000 genes are expressed predominantly in mouse and human testes. Although functional analyses of hundreds of these genes have been performed, there are still many testis-enriched genes whose functions remain unexplored. Analyzing gene function using knockout (KO) mice is a powerful tool to discern if the gene of interest is essential for sperm formation, function, and male fertility in vivo. In this study, we generated KO mice for 12 testis-enriched genes, 1700057G04Rik, 4921539E11Rik, 4930558C23Rik, Cby2, Ldhal6b, Rasef, Slc25a2, Slc25a41, Smim8, Smim9, Tmem210, and Tomm20l, using the clustered regularly interspaced short palindromic repeats /CRISPR-associated protein 9 (CRISPR/Cas9) system. We designed two gRNAs for each gene to excise almost all the protein-coding regions to ensure that the deletions in these genes result in a null mutation. Mating tests of KO mice reveal that these 12 genes are not essential for male fertility, at least when individually ablated, and not together with other potentially compensatory paralogous genes. Our results could prevent other laboratories from expending duplicative effort generating KO mice, for which no apparent phenotype exists.
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spelling doaj.art-7f88ba8a95df47dfb5206782c61235752022-12-22T02:28:12ZengWolters Kluwer Medknow PublicationsAsian Journal of Andrology1008-682X1745-72622022-01-0124326627210.4103/aja.aja_63_21CRISPR/Cas9-mediated genome editing reveals 12 testis-enriched genes dispensable for male fertility in miceYuki OyamaHaruhiko MiyataKeisuke ShimadaYoshitaka FujiharaKeizo TokuhiroThomas X GarciaMartin M MatzukMasahito IkawaGene expression analyses suggest that more than 1000–2000 genes are expressed predominantly in mouse and human testes. Although functional analyses of hundreds of these genes have been performed, there are still many testis-enriched genes whose functions remain unexplored. Analyzing gene function using knockout (KO) mice is a powerful tool to discern if the gene of interest is essential for sperm formation, function, and male fertility in vivo. In this study, we generated KO mice for 12 testis-enriched genes, 1700057G04Rik, 4921539E11Rik, 4930558C23Rik, Cby2, Ldhal6b, Rasef, Slc25a2, Slc25a41, Smim8, Smim9, Tmem210, and Tomm20l, using the clustered regularly interspaced short palindromic repeats /CRISPR-associated protein 9 (CRISPR/Cas9) system. We designed two gRNAs for each gene to excise almost all the protein-coding regions to ensure that the deletions in these genes result in a null mutation. Mating tests of KO mice reveal that these 12 genes are not essential for male fertility, at least when individually ablated, and not together with other potentially compensatory paralogous genes. Our results could prevent other laboratories from expending duplicative effort generating KO mice, for which no apparent phenotype exists.http://www.ajandrology.com/article.asp?issn=1008-682X;year=2022;volume=24;issue=3;spage=266;epage=272;aulast=Oyamacrispr/cas9; knockout mice; male infertility; spermatozoa; testis
spellingShingle Yuki Oyama
Haruhiko Miyata
Keisuke Shimada
Yoshitaka Fujihara
Keizo Tokuhiro
Thomas X Garcia
Martin M Matzuk
Masahito Ikawa
CRISPR/Cas9-mediated genome editing reveals 12 testis-enriched genes dispensable for male fertility in mice
Asian Journal of Andrology
crispr/cas9; knockout mice; male infertility; spermatozoa; testis
title CRISPR/Cas9-mediated genome editing reveals 12 testis-enriched genes dispensable for male fertility in mice
title_full CRISPR/Cas9-mediated genome editing reveals 12 testis-enriched genes dispensable for male fertility in mice
title_fullStr CRISPR/Cas9-mediated genome editing reveals 12 testis-enriched genes dispensable for male fertility in mice
title_full_unstemmed CRISPR/Cas9-mediated genome editing reveals 12 testis-enriched genes dispensable for male fertility in mice
title_short CRISPR/Cas9-mediated genome editing reveals 12 testis-enriched genes dispensable for male fertility in mice
title_sort crispr cas9 mediated genome editing reveals 12 testis enriched genes dispensable for male fertility in mice
topic crispr/cas9; knockout mice; male infertility; spermatozoa; testis
url http://www.ajandrology.com/article.asp?issn=1008-682X;year=2022;volume=24;issue=3;spage=266;epage=272;aulast=Oyama
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