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Positional cloning of the Hybrid sterility 1 gene: fine genetic mapping and evaluation of two candidate genes
 Mihola, Ondřej ; Trachtulec, Zdeněk (advisor) ; Munclinger, Pavel (referee) ; Pravenec, Michal (referee)
Summaryofpublications 1. Positionalcloningof the Hybridsterility1 gene:finegenetic mappingand evaluationof twocandidategenes Hybridsteri|iýis one of the mechanismsof speciation.The Hybridsteriliý1 (HsÍí)genewasthefirstmappedmammaliangene.The geneaffectsfertiliýof male hybridsbetweencertainlaboratorystrains(suchas C57Bl/10)and Mus musculus musculusmiceby causinga breakdownof spermatogenesisat thestageof primary spermatocytes.|ntheprocessof positiona|c|oningoftheHsÍígene,Wegenerateda contigof bacterialartificialchromosomes(BACs)and subsequentlya lowcoverage sequenceof the candidateregionof the '12951/SvlmJstrain.New geneticmarkers narroweddown the HsÍíregionfrom 580 to 360 ki|obases.The productsof two genesfromthisregion,TATA-bindingprotein(Ibp)and proteasomesubunitbeta1 (Psmb1\,accumulateduringspermatogenesis.The proteinshave been described previouslyas having conservedC{erminal sequencesand species-specificN- termini.We eva|uatedthe candidacyof thesegenesfor Hsťíby a||e|icsequencing and by real-timereverse-transcriptionPCR of testicularmRNAs.The resultssuggest thatneitherthePsmÓí northe lbp genecausehybridsteri|ity.Thesing|enuc|eotide po|ymorphisms(SNPs)we havefound,was usedfor the hap|oýpeana|ysisof the HsÍíregion.
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