Toward the genetics of mammalian reproduction: induction and mapping of gametogenesis mutants in mice.
The genetic control of mammalian gametogenesis is inadequately characterized because of a lack of mutations causing infertility. To further the discovery of genes required for mammalian gametogenesis, phenotype-driven screens were performed in mice using random chemical mutagenesis of whole animals and embryonic stem cells. Eleven initial mutations are reported here that affect proliferation of germ cells, meiosis, spermiogenesis, and spermiation. Nine of the mutations have been mapped genetically. These preliminary studies provide baselines for estimating the number of genes required for gametogenesis and offer guidance in conducting new genetic screens that will accelerate and optimize mutant discovery. This report demonstrates the efficacy and expediency of mutagenesis to identify new genes required for mammalian gamete development.
Ward
Jeremy O
JO
The Jackson Laboratory, Bar Harbor, Maine 04609, USA.
Reinholdt
Laura G
LG
Hartford
Suzanne A
SA
Wilson
Lawriston A
LA
Munroe
Robert J
RJ
Schimenti
Kerry J
KJ
Libby
Brian J
BJ
O'Brien
Marilyn
M
Pendola
Janice K
JK
Eppig
John
J
Schimenti
John C
JC
D000818:Animals; D002874:Chromosome Mapping; D005038:Ethylnitrosourea / Q000494:pharmacology; D005260:Female; D005718:Gametogenesis / Q000235:genetics*; D005838:Genotype; D007246:Infertility / Q000235:genetics; D008297:Male; D008540:Meiosis / Q000235:genetics; D051379:Mice; D016296:Mutagenesis / Q000187:drug effects; D009152:Mutagenicity Tests; D009153:Mutagens / Q000494:pharmacology; D009154:Mutation / Q000235:genetics*; D009865:Oocytes / Q000502:physiology; D010641:Phenotype; D011247:Pregnancy; D012098:Reproduction / Q000235:genetics*
D009153:Mutagens; D005038:Ethylnitrosourea