Interallelic and intergenic incompatibilities of the Prdm9 (Hst1) gene in mouse hybrid sterility.
The Dobzhansky-Muller model of incompatibilities explains reproductive isolation between species by incorrect epistatic interactions. Although the mechanisms of speciation are of great interest, no incompatibility has been characterized at the gene level in mammals. The Hybrid sterility 1 gene (Hst1...
Main Authors: | , , , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Public Library of Science (PLoS)
2012-01-01
|
Series: | PLoS Genetics |
Online Access: | http://europepmc.org/articles/PMC3486856?pdf=render |
id |
doaj-37c688b497cd41a4b268bbff67848644 |
---|---|
record_format |
Article |
spelling |
doaj-37c688b497cd41a4b268bbff678486442020-11-25T02:01:21ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042012-01-01811e100304410.1371/journal.pgen.1003044Interallelic and intergenic incompatibilities of the Prdm9 (Hst1) gene in mouse hybrid sterility.Petr FlachsOndřej MiholaPetr SimečekSoňa GregorováJohn C SchimentiYasuhisa MatsuiFrédéric BaudatBernard de MassyJaroslav PiálekJiří ForejtZdenek TrachtulecThe Dobzhansky-Muller model of incompatibilities explains reproductive isolation between species by incorrect epistatic interactions. Although the mechanisms of speciation are of great interest, no incompatibility has been characterized at the gene level in mammals. The Hybrid sterility 1 gene (Hst1) participates in the arrest of meiosis in F(1) males of certain strains from two Mus musculus subspecies, e.g., PWD from M. m. musculus and C57BL/6J (henceforth B6) from M. m. domesticus. Hst1 has been identified as a meiotic PR-domain gene (Prdm9) encoding histone 3 methyltransferase in the male offspring of PWD females and B6 males, (PWD×B6)F(1). To characterize the incompatibilities underlying hybrid sterility, we phenotyped reproductive and meiotic markers in males with altered copy numbers of Prdm9. A partial rescue of fertility was observed upon removal of the B6 allele of Prdm9 from the azoospermic (PWD×B6)F(1) hybrids, whereas removing one of the two Prdm9 copies in PWD or B6 background had no effect on male reproduction. Incompatibility(ies) not involving Prdm9(B6) also acts in the (PWD×B6)F(1) hybrids, since the correction of hybrid sterility by Prdm9(B6) deletion was not complete. Additions and subtractions of Prdm9 copies, as well as allelic replacements, improved meiotic progression and fecundity also in the progeny-producing reciprocal (B6×PWD)F(1) males. Moreover, an increased dosage of Prdm9 and reciprocal cross enhanced fertility of other sperm-carrying male hybrids, (PWD×B6-C3H.Prdm9)F(1), harboring another Prdm9 allele of M. m. domesticus origin. The levels of Prdm9 mRNA isoforms were similar in the prepubertal testes of all types of F(1) hybrids of PWD with B6 and B6-C3H.Prdm9 despite their different prospective fertility, but decreased to 53% after removal of Prdm9(B6). Therefore, the Prdm9(B6) allele probably takes part in posttranscriptional dominant-negative hybrid interaction(s) absent in the parental strains.http://europepmc.org/articles/PMC3486856?pdf=render |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Petr Flachs Ondřej Mihola Petr Simeček Soňa Gregorová John C Schimenti Yasuhisa Matsui Frédéric Baudat Bernard de Massy Jaroslav Piálek Jiří Forejt Zdenek Trachtulec |
spellingShingle |
Petr Flachs Ondřej Mihola Petr Simeček Soňa Gregorová John C Schimenti Yasuhisa Matsui Frédéric Baudat Bernard de Massy Jaroslav Piálek Jiří Forejt Zdenek Trachtulec Interallelic and intergenic incompatibilities of the Prdm9 (Hst1) gene in mouse hybrid sterility. PLoS Genetics |
author_facet |
Petr Flachs Ondřej Mihola Petr Simeček Soňa Gregorová John C Schimenti Yasuhisa Matsui Frédéric Baudat Bernard de Massy Jaroslav Piálek Jiří Forejt Zdenek Trachtulec |
author_sort |
Petr Flachs |
title |
Interallelic and intergenic incompatibilities of the Prdm9 (Hst1) gene in mouse hybrid sterility. |
title_short |
Interallelic and intergenic incompatibilities of the Prdm9 (Hst1) gene in mouse hybrid sterility. |
title_full |
Interallelic and intergenic incompatibilities of the Prdm9 (Hst1) gene in mouse hybrid sterility. |
title_fullStr |
Interallelic and intergenic incompatibilities of the Prdm9 (Hst1) gene in mouse hybrid sterility. |
title_full_unstemmed |
Interallelic and intergenic incompatibilities of the Prdm9 (Hst1) gene in mouse hybrid sterility. |
title_sort |
interallelic and intergenic incompatibilities of the prdm9 (hst1) gene in mouse hybrid sterility. |
publisher |
Public Library of Science (PLoS) |
series |
PLoS Genetics |
issn |
1553-7390 1553-7404 |
publishDate |
2012-01-01 |
description |
The Dobzhansky-Muller model of incompatibilities explains reproductive isolation between species by incorrect epistatic interactions. Although the mechanisms of speciation are of great interest, no incompatibility has been characterized at the gene level in mammals. The Hybrid sterility 1 gene (Hst1) participates in the arrest of meiosis in F(1) males of certain strains from two Mus musculus subspecies, e.g., PWD from M. m. musculus and C57BL/6J (henceforth B6) from M. m. domesticus. Hst1 has been identified as a meiotic PR-domain gene (Prdm9) encoding histone 3 methyltransferase in the male offspring of PWD females and B6 males, (PWD×B6)F(1). To characterize the incompatibilities underlying hybrid sterility, we phenotyped reproductive and meiotic markers in males with altered copy numbers of Prdm9. A partial rescue of fertility was observed upon removal of the B6 allele of Prdm9 from the azoospermic (PWD×B6)F(1) hybrids, whereas removing one of the two Prdm9 copies in PWD or B6 background had no effect on male reproduction. Incompatibility(ies) not involving Prdm9(B6) also acts in the (PWD×B6)F(1) hybrids, since the correction of hybrid sterility by Prdm9(B6) deletion was not complete. Additions and subtractions of Prdm9 copies, as well as allelic replacements, improved meiotic progression and fecundity also in the progeny-producing reciprocal (B6×PWD)F(1) males. Moreover, an increased dosage of Prdm9 and reciprocal cross enhanced fertility of other sperm-carrying male hybrids, (PWD×B6-C3H.Prdm9)F(1), harboring another Prdm9 allele of M. m. domesticus origin. The levels of Prdm9 mRNA isoforms were similar in the prepubertal testes of all types of F(1) hybrids of PWD with B6 and B6-C3H.Prdm9 despite their different prospective fertility, but decreased to 53% after removal of Prdm9(B6). Therefore, the Prdm9(B6) allele probably takes part in posttranscriptional dominant-negative hybrid interaction(s) absent in the parental strains. |
url |
http://europepmc.org/articles/PMC3486856?pdf=render |
work_keys_str_mv |
AT petrflachs interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility AT ondrejmihola interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility AT petrsimecek interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility AT sonagregorova interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility AT johncschimenti interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility AT yasuhisamatsui interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility AT fredericbaudat interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility AT bernarddemassy interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility AT jaroslavpialek interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility AT jiriforejt interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility AT zdenektrachtulec interallelicandintergenicincompatibilitiesoftheprdm9hst1geneinmousehybridsterility |
_version_ |
1724957425192140800 |