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Annotation: Mating type A locus

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Presentation on theme: "Annotation: Mating type A locus"— Presentation transcript:

1 Annotation: Mating type A locus

2 The mating type loci of higher basidiomycetes
A locus B locus HD1-1 HD2-1 mfa1 pra1 MAT-1 MAT-2 pra2 mfa2 HD2-2 HD1-2 Casselton and Kues, review

3 Species Phylogeny Homobasidiomycetes Agaricales Basidiomycota
Coprinopsis cinerea Coprinopsis scobicola Coprinellus disseminatus Pholiota nameko Schizophyllum commune Laccaria bicolor Pleurotus djamor Phanerochaete chrysosporium Cryptococcus neoformans Ustilago maydis Ustilago hordei Microbotryum violaceum Neurospora crassa Saccharomyces cerevisiae Pneumocystis carinii Agaricales Homobasidiomycetes Basidiomycota Ustilaginomycetes/smuts Urediniomycetes/rusts Ascomycota from James TY

4 Evolution of the A mating type locus
Aa Ab Ad pab mip b-fg 40 kb 99 kb ade C. cinerea C. scobicola pab 39 kb mip b-fg C. disseminatus pab 32 kb mip b-fg S. commune ade pab 50 kb mip x P. djamor 39 kb b-fg mip P. chrysosporium mip b-fg pab ade T.Y. James, U. Kües

5 Evolution of the A mating type locus
Aa Ab Ad Aa 5kb 13kb 55kb 175kb specific conserved

6 A mating type locus in Laccaria bicolor
Aa Ab Ad 5kb Aa 13kb 55kb 175kb specific conserved

7 A mating type locus in Laccaria bicolor
FMNOR1 translocated 5kb Aa 13kb 55kb 175kb specific conserved

8 A mating type locus in Laccaria bicolor
5kb Aa 13kb 55kb 175kb specific conserved

9 B mating type locus in Laccaria bicolor
Demo ChromoMapper L.bicolor

10 B mating type locus in Laccaria bicolor

11 Known mating pheromone response pathway
cdc25 Ste6 Gpa1 β γ GDP Receptor GTP Pheromone HMG P Ras1 MAPKKK MAPKK MAPK ACTIVATION cdc24 Cdc42 Ste20 MORPHOLOGY Nucleus Cytoplasm Plasma Membrane pheromone receptor mating type hmg-box genes Mating Response Genes Conserved between ascomycetes and basidiomycetes

12 Conclusion The genomic region surrounding
- the A locus is conserved on 170kb - the B locus is not conserved between fungi Pheromone and receptor coding gene duplication were detected in 7 other scaffolds

13 Acknowledgements Francis Martin Alexandre Hirzel Ursula Kües
Ian Sanders

14 A mating type locus in Laccaria bicolor
pab mip b-fg 40 kb 99 kb ade C. cinerea C. scobicola pab 39 kb mip b-fg C. disseminatus pab 32 kb mip b-fg S. commune ade pab 50 kb mip x pab mip b-fg 39 kb 99 kb ade L. bicolor P. djamor 39 kb b-fg mip P. chrysosporium mip b-fg pab ade T.Y. James, U. Kües

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