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Genetics of mating incompatibility in fungi BIO341F
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Genetics of mating incompatibility in fungi BIO341F.

Jan 16, 2016

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Page 1: Genetics of mating incompatibility in fungi BIO341F.

Genetics of mating incompatibility in fungi

BIO341F

Page 2: Genetics of mating incompatibility in fungi BIO341F.

From: Herskowitz, I. 1988. Microbiol. Rev. 52:536-553.

Yeast cell cycle

Page 3: Genetics of mating incompatibility in fungi BIO341F.

From: Herskowitz, I. 1988. Microbiol. Rev. 52:536-553.

Yeast cell types and life cycle

Page 4: Genetics of mating incompatibility in fungi BIO341F.

From: Casselton, L. A. & Olesnicky, N. S. 1998. Molecular genetics of mating recognition in basidiomycete fungi.Microbiol. Mol. Biol. Rev, 62:55-70.

Signal transduction pathway from pheromone to transcription

Page 5: Genetics of mating incompatibility in fungi BIO341F.

From: Herskowitz, I. 1988. Microbiol. Rev. 52:536-553.

Page 6: Genetics of mating incompatibility in fungi BIO341F.

From: Herskowitz, I. 1988. Microbiol. Rev. 52:536-553.

Regulatory circuits

Page 7: Genetics of mating incompatibility in fungi BIO341F.

From: Herskowitz, I. 1988. Microbiol. Rev. 52:536-553.

Regulation of entry into meiosis

Page 8: Genetics of mating incompatibility in fungi BIO341F.

From: Herskowitz, I. 1988. Microbiol. Rev. 52:536-553.

**

Mating type switching: homothallic versus heterothallic

Page 9: Genetics of mating incompatibility in fungi BIO341F.

From: Herskowitz, I. 1988. Microbiol. Rev. 52:536-553.

Page 10: Genetics of mating incompatibility in fungi BIO341F.

From: Herskowitz, I. 1988. Microbiol. Rev. 52:536-553.

Switching dependent on HO

MAT

HMRa

HML

HML

MAT HMRa

Page 11: Genetics of mating incompatibility in fungi BIO341F.

Basidiomycete mating systems

Schizophyllum commune

Page 12: Genetics of mating incompatibility in fungi BIO341F.
Page 13: Genetics of mating incompatibility in fungi BIO341F.

From: Casselton, L. A. & Olesnicky, N. S. 1998. Molecular genetics of mating recognition in basidiomycete fungi.Microbiol. Mol. Biol. Rev, 62:55-70.

Coprinus cinereus

Page 14: Genetics of mating incompatibility in fungi BIO341F.

Unifactorial Incompatibility System

A1

A2

A1

A2 A3 A4

-

-

+

+ +

+ +

+

Page 15: Genetics of mating incompatibility in fungi BIO341F.

Bifactorial incompatibility system

A1B1

- - - +

+ ---

-

- --

+ - -

+

+

+ ++

+ + +

+

+

+ ++

+ + +

+

A2B2A2B1 A1B2 A3B3 A4B4A4B3 A3B4

A2B2

A1B2

A2B1

A1B1

Page 16: Genetics of mating incompatibility in fungi BIO341F.
Page 17: Genetics of mating incompatibility in fungi BIO341F.

From: Casselton, L. A. & Olesnicky, N. S. 1998. Molecular genetics of mating recognition in basidiomycete fungi.Microbiol. Mol. Biol. Rev, 62:55-70.

Page 18: Genetics of mating incompatibility in fungi BIO341F.

1.5 cm

Schizophyllum commune

Adaptive potential of dikaryons, diploids, and haploids

Clark & Anderson. 2004. Genetics 167:1663

Coprinus cinereus

TravisClark

Anderson and Kohn. 2007. Dikaryons, diploids, and evolution. In: Sex in Fungi: Molecular Determination and Evolutionary Implications (Eds. Heitman, Kronstad, and Casselton). ASM Press.

Page 19: Genetics of mating incompatibility in fungi BIO341F.

Mating-type pheromones, receptors and nuclear spacing.

See Schuurs et al. 1998. FGB 23:150-161.

B genes: -nuclear migrationA Genes: -nuclear pairing -coordinate nuclear division -hook cell formation

Page 20: Genetics of mating incompatibility in fungi BIO341F.

B genes: -hook cell fusion

A.H.R. BullerUrsula KuesTim James

Page 21: Genetics of mating incompatibility in fungi BIO341F.

From Brown & Casselton

Page 22: Genetics of mating incompatibility in fungi BIO341F.
Page 23: Genetics of mating incompatibility in fungi BIO341F.

Appendix: Genome-wide mutation dynamic within a long-lived

individual of Armillaria

Page 24: Genetics of mating incompatibility in fungi BIO341F.

Genetic individuals of Armillaria gallica in a mixedhardwood forest

Page 25: Genetics of mating incompatibility in fungi BIO341F.

Mating of two compatible haploid strainsproduces a diploid

Page 26: Genetics of mating incompatibility in fungi BIO341F.

GME17863_g putative homeodomain 2 protein [Flammulina velutipes] NAMAAY1_SCHCO Mating-type protein A-alpha Y1 OS=Schizophyllum commune PE=2 SV=1F1CZK4_FLAVE Putative homeodomain 2 protein OS=Flammulina velutipes GN=HD2-1 PE=3 SV=1 IPR001356; Homeobox IPR009057; Homeodomain-like IPR012287; Homeodomain-related IPR017970; Homeobox, conserved site GO:0003677; DNA binding; Molecular Function GO:0003700; sequence-specific DNA binding transcription factor activity; Molecular Function GO:0005515; protein binding; Molecular Function GO:0005634; nucleus; Cellular Component GO:0006355; regulation of transcription, DNA-dependent; Biological Process GO:0030528; transcription regulator activity; Molecular Function GO:0043565; sequence-specific DNA binding; Molecular Function GO:0045449; regulation of transcription; Biological Process

GME17864_g homeodomain type 1 mating protein a1-1 [Coprinopsis scobicola] NAMAB11_COPCI Mating-type protein beta1-1 OS=Coprinopsis cinerea PE=3 SV=1 Q9C1N6_COPSC Homeodomain type 1 mating protein a1-1 OS=Coprinopsis scobicola GN=a1-1 PE=3 SV=1 IPR001356; Homeobox IPR008422; Homeobox KN domain IPR009057; Homeodomain-like IPR012287; Homeodomain-related GO:0003677; DNA binding; Molecular Function GO:0003700; sequence-specific DNA binding transcription factor activity; Molecular Function GO:0005515; protein binding; Molecular Function GO:0005634; nucleus; Cellular Component GO:0006355; regulation of transcription, DNA-dependent; Biological Process GO:0043565; sequence-specific DNA binding; Molecular Function GO:0045449; regulation of transcription; Biological Process

A gene of Armillaria gallica