1. Aimi, T., , R. Yoshida, , M. Ishikawa, , D. P. Bao, and , Y. Kitamoto. 2005. Identification and linkage mapping of the genes for the putative homeodomain protein ( hox1 ) and the putative pheromone receptor protein homologue ( rcb1 ) in a bipolar basidiomycete, Pholiota nameko . Curr. Genet. 48: 184 – 194 .

2. Badrane, H., and , G. May. 1999. The divergence-homogenization duality in the evolution of the b1 mating type gene of Coprinus cinereus . Mol. Biol. Evol. 16: 975 – 986 .

3. Banuett, F. 1998. Signalling in the yeasts: an informational cascade with links to the filamentous fungi. Microbiol. Mol. Biol. Rev. 62: 249 – 274 .

4. Baptistaferreira, , J. L. C., A. Economou, and , L. A. Casselton. 1983. Mitochondrial genetics of Coprinus —recombination of mitochondrial genomes. Curr. Genet. 7: 405 – 407 .

5. Berbee, M. L., and , J. W. Taylor. 1993. Dating the evolutionary radiations of the true fungi. Can. J. Bot. 71: 1114 – 1127 .

6. Bodensteiner, P., , M. Binder, , J. M. Moncalvo, , R. Agerer, and , D. S. Hibbett. 2004. Phylogenetic relationships of cyphelloid homobasidiomycetes. Mol. Phylogenet. Evol. 33: 501 – 515 .

7. Boidin, J. 1971. Nuclear behavior in the mycelium and the evolution of the Basidiomycetes, p. 129–148. In R. H. Petersen (ed.), Evolution in the Higher Basidiomycetes . The University of Tennessee Press, Knoxville.

8. Bortfeld, M., , K. Auffarth, , R. Kahmann, and , C. W. Basse. 2004. The Ustilago maydis a2 mating-type locus genes lga2 and rga2 compromise pathogenicity in the absence of the mitochondrial p32 family protein Mrb1. Plant Cell 16: 2233 – 2248 .

9. Branda, S. S., and , G. Isaya. 1995. Prediction and identification of new natural substrates of the yeast mitochondrial intermediate peptidase. J. Biol. Chem. 270: 27366 – 27373.

10. Brown, A. J., and , L. A. Casselton. 2001. Mating in mushrooms: increasing the chances but prolonging the affair. Trends Genet. 17: 393 – 400 .

11. Butler, G., , C. Kenny, , A. Fagan, , C. Kurischko, , C. Gaillardin, and K. H. Wolfe. 2004. Evolution of the MAT locus and its Ho endonuclease in yeast species. Proc. Natl. Acad. Sci. USA 101: 1632 – 1637 .

12. Casselton, L. A. 2002. Mate recognition in fungi. Heredity 88: 142 – 147 .

13. Casselton, , L. A., R. N. Asante-Owusu, , A. H. Banham, , C. S. Kingsnorth, , U. Kües, S. F. O’Shea, and E. H. Pardo. 1995. Mating type of sexual development in Coprinus cinereus . Can. J. Bot. 73: S266 – S272 .

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

15. Cvrčková, F., , C. De Virgilio, , D. Manser, , J. R. Pringle, and , K. Nasmyth. 1995. Ste20-like protein kinases are required for normal localization of cell growth and for cytokinesis in budding yeast. Genes Dev. 9: 1817 – 1830 .

16. Dandekar, T., , B. Snel, , M. Huynen, and , P. Bork. 1998. Conservation of gene order: a fingerprint of proteins that physically interact. Trends Biochem. Sci. 23: 324 – 328 .

17. Davidson, R. C., , C. B. Nicholls, , G. M. Cox, , J. R. Perfect, and , J. Heitman. 2003. A MAP kinase cascade composed of cell type specific and non-specific elements controls mating and differentiation of the fungal pathogen Cryptococcus neoformans . Mol. Microbiol. 49: 469 – 485 .

18. Day, P. R. 1960. The structure of the A mating-type locus in Coprinus lagopus . Genetics 45: 641 – 651 .

19. Drees, , B. L., B. Sundin, , E. Brazeau, , J. P. Caviston, , G. C. Chen, , W. Guo, , K. G. Kozminski, , M. W. Lau, , J. J. Moskow, , A. Tong, , L. R. Schenkman, , A. McKenzie, , P. Brennwald, , M. Longtine, , E. Bi, , C. Chan, , P. Novick, , C. Boone, , J. R. Pringle, , T. N. Davis, , S. Fields, and , D. G. Drubin. 2001. A protein interaction map for cell polarity development. J. Cell Biol. 154: 549 – 571 .

20. Eichler, E. E., and , D. Sankoff. 2003. Structural dynamics of eukaryotic chromosome evolution. Science 301: 793 – 797 .

21. Ferreira, A. V. B., , S. Saupe, and , N. L. Glass. 1996. Transcriptional analysis of the mtA idiomorph of Neurospora crassa identifies two genes in addition to mtA-1. Mol. Gen. Genet. 250: 767 – 774 .

22. Fischer, G., , E. P. C. Rocha, , F. Brunet, , M. Vergassola, and , B. Dujon. 2006. Highly variable rates of genome rearrangements between hemiascomycetous yeast lineages. PLoS Genet. 2: e32.

23. Fowler, T. J., , M. F. Mitton, , E. I. Rees, and , C. A. Raper. 2004. Crossing the boundary between the Bα and Bβ mating-type loci in Schizophyllum commune . Fungal Genet. Biol. 41: 89 – 101 .

24. Fowler, T. J., , M. F. Mitton, , L. J. Vaillancourt, and , C. A. Raper. 2001. Changes in mate recognition through alterations of pheromones and receptors in the multisexual mushroom fungus Schizophyllum commune . Genetics 158: 1491 – 1503 .

25. Fraser, J. A., , S. Diezmann, , R. L. Subaran, , A. Allen, , K. B. Lengeler, , F. S. Dietrich, and , J. Heitman. 2004. Convergent evolution of chromosomal sex-determining regions in the animal and fungal kingdoms. PLoS Biol. 2: 2243 – 2255.

26. Fraser, J. A., and J. Heitman. 2006. Sex, MAT , and the evolution of fungal virulence, p. 13–33. In J. Heitman, , S. G. Filler, , J. E. Edwards, , Jr., and A. P. Mitchell (ed.), Molecular Principles of Fungal Pathogenesis . ASM Press, Washington, DC.

27. Giasson, L., , C. A. Specht, , C. Milgrim, , C. P. Novotny, and , R. C. Ullrich. 1989. Cloning and comparison of Aα mating-type alleles of the basidiomycete Schizophyllum commune . Mol. Gen. Genet. 218: 72 – 77 .

28. Grützner, F., , H. R. Crollius, , G. Lütjens, O. Jaillon, , J. Weissenbach, , H. H. Ropers, and , T. Haaf. 2002. Fourhundred million years of conserved synteny of human Xp and Xq genes on three Tetraodon chromosomes. Genome Res. 12: 1316 – 1322 .

29. Halsall, J. R., , M. J. Milner, and , L. A. Casselton. 2000. Three subfamilies of pheromone and receptor genes generate multiple B mating specificities in the mushroom Coprinus cinereus . Genetics 154: 1115 – 1123 .

30. Hibbett, D. S., and , M. Binder. 2002. Evolution of complex fruiting-body morphologies in homobasidiomycetes. Proc. R. Soc. Lond. B 269: 1963 – 1969 .

31. Hibbett, D. S., and , M. J. Donoghue. 2001. Analysis of character correlations among wood decay mechanisms, mating systems, and substrate ranges in homobasidiomycetes. Syst. Biol. 50: 215 – 242 .

32. Hiscock, S. J., and , U. Kües. 1999. Cellular and molecular mechanisms of sexual incompatibility in plants and fungi. Int. Rev. Cytol. 193: 165 – 295 .

33. Hogberg, P., , A. Nordgren, , N. Buchmann, , A. F. S. Taylor, , A. Ekblad, , M. N. Hogberg, , G. Nyberg, , M. OttossonLofvenius, and D. J. Read. 2001. Large-scale forest girdling shows that current photosynthesis drives soil respiration. Nature 411: 789 – 792 .

34. Hopple, J. S., Jr., and R. Vilgalys. 1999. Phylogenetic relationships in the mushroom genus Coprinus and dark-spored allies based on sequence data from the nuclear gene coding for the large ribosomal subunit RNA: divergent domains, outgroups, and monophyly. Mol. Phylogenet. Evol. 13: 1 – 19 .

35. Hurst, L. D., and , W. D. Hamilton. 1992. Cytoplasmic fusion and the nature of sexes. Proc. R. Soc. Lond. B 247: 189 – 194 .

36. Hurst, L. D., , C. Pal, and , M. J. Lercher. 2004. The evolutionary dynamics of eukaryotic gene order. Nat. Rev. Genet. 5: 299 – 310 .

37. Isaya, G., , W. R. Sakati, , R. A. Rollins, , G. P. Shen, , L. C. Hanson, , R. C. Ullrich, and , C. P. Novotny. 1995. Mammalian mitochondrial intermediate peptidase—structure-function analysis of a new homolog from Schizophyllum commune and relationship to thimet oligopeptidases. Genomics 28: 450 – 461 .

38. James, T. Y. 2003. The Evolution of Mating-Type Genes in the Mushroom Fungi (Homobasidiomycetes) . Duke University, Durham, NC.

39. James, T. Y., , U. Kües, S. A. Rehner, and , R. Vilgalys. 2004. Evolution of the gene encoding mitochondrial intermediate peptidase and its cosegregation with the Aα mating-type locus of mushroom fungi. Fungal Genet. Biol. 41: 381 – 390 .

40. James, T. Y., , S. R. Liou, and , R. Vilgalys. 2004. The genetic structure and diversity of the A and B mating-type genes from the tropical oyster mushroom, Pleurotus djamor . Fungal Genet. Biol. 41: 813 – 825 .

41. James, T. Y., , P. Srivilai, , U. Kües, and R. Vilgalys. 2006. Evolution of the bipolar mating system of the mushroom Coprinellus disseminatus from its tetrapolar ancestors involves loss of mating-type-specific pheromone receptor function. Genetics 172: 1877 – 1891 .

42. Kirk, P. M., , P. F. Cannon, , J. C. David, and , J. A. Stalpers (ed.). 2001. Ainsworth & Bisby’s Dictionary of the Fungi , 9th ed. CAB International, Wallingford, United Kingdom.

43. Kothe, E. 2001. Mating-type genes for basidiomycete strain improvement in mushroom farming. Appl. Microbiol. Biotechnol. 56: 602 – 612 .

44. Kües, , U. 2000. Life history and developmental processes in the basidiomycete Coprinus cinereus . Microbiol. Mol. Biol. Rev. 64: 316 – 353 .

45. Kües, U., and , L. A. Casselton. 1993. The origin of multiple mating types in mushrooms. J. Cell Sci. 104: 227 – 230 .

46. Kües, U., , B. Göttgens, R. Stratmann, , W. V. J. Richardson, , S. F. O’Shea, and L. A. Casselton. 1994. A chimeric homeodomain protein causes self-compatibility and constitutive sexual development in the mushroom Coprinus cinereus . EMBO J. 13: 4054 – 4059 .

47. Kües, U., , T. Y. James, , R. Vilgalys, and , M. P. Challen. 2001. The chromosomal region containing pab-1 , mip , and the A mating type locus of the secondarily homothallic homobasidiomycete Coprinus bilanatus . Curr. Genet. 39: 16 – 24 .

48. Kües, U., , A. M. Tymon, , W. V. J. Richardson, , G. May, , P. T. Gieser, and , L. A. Casselton. 1994. A mating-type factors of Coprinus cinereus have variable numbers of specificity genes encoding two classes of homeodomain proteins. Mol. Gen. Genet. 245: 45 – 52 .

49. Larraya, L. M., , G. Perez, , E. Ritter, , A. G. Pisabarro, and , L. Ramirez. 2000. Genetic linkage map of the edible basidiomycete Pleurotus ostreatus . Appl. Environ. Microbiol. 66: 5290 – 5300 .

50. Lee, N., , G. Bakkeren, , K. Wong, , J. E. Sherwood, and , J. W. Kronstad. 1999. The mating-type and pathogenicity locus of the fungus Ustilago hordei spans a 500-kb region. Proc. Natl. Acad. Sci. USA 96: 15026 – 15031 .

51. Lengeler, K. B., , D. S. Fox, , J. A. Fraser, , A. Allen, , K. Forrester, , F. Dietrich, and , J. Heitman. 2002. The mating type locus of Cryptococcus neoformans : a step in the evolution of sex chromosomes. Eukaryot. Cell 1: 704 – 718 .

52. Lengeler, K. B., , P. Wang, , G. M. Cox, , J. R. Perfect, and , J. Heitman. 2000. Identification of the MATa mating-type locus of Cryptococcus neoformans reveals a serotype A MATa strain thought to have been extinct. Proc. Natl. Acad. Sci. USA 97: 14455 – 14460 .

53. Leveleki, L., , M. Mahlert, , B. Sandrock, and , M. Bölker. 2004. The PAK family kinase Cla4 is required for budding and morphogenesis in Ustilago maydis . Mol. Microbiol. 54: 396 – 406 .

54. Liu, Y.-G., and , R. F. Whittier. 1995. Thermal asymmetric interlaced PCR: automatable amplification and sequencing of insert end fragments from P1 and YAC clones for chromosome walking. Genomics 25: 674 – 681 .

55. Lukens, L., , H. Yicun, and , G. May. 1996. Correlation of genetic and physical maps at the A mating-type locus of Coprinus cinereus . Genetics 144: 1471 – 1477 .

56. Marion, A. L., , K. A. Bartholomew, , J. Wu, , H. L. Yang, , C. P. Novotny, and , R. C. Ullrich. 1996. The Aα mating-type locus of Schizophyllum commune : structure and function of gene X . Curr. Genet. 29: 143 – 149 .

57. Martinez, D., , L. F. Larrondo, , N. Putnam, , M. D. S. Gelpke, , K. Huang, , J. Chapman, , K. G. Helfenbein, , P. Ramaiya, , J. C. Detter, , F. Larimer, , P. M. Coutinho, , B. Henrissat, , R. Berka, , D. Cullen, and , D. Rokhsar. 2004. Genome sequence of the lignocellulose degrading fungus Phanerochaete chrysosporium strain RP78. Nat. Biotechnol. 22: 695 – 700 .

58. May, G., , F. Shaw, , H. Badrane, and , X. Vekemans. 1999. The signature of balancing selection: fungal mating compatibility gene evolution. Proc. Natl. Acad. Sci. USA 96: 9172 – 9177 .

59. Moncalvo, J.-M., R. Vilgalys, S. A. Redhead, J. E. Johnson, T. Y. James, M. C. Aime, V. Hofstetter, S. Verduin, E. Larsen, T. J. Baroni, R. G. Thorn, S. Jacobsson, H. Clémençon, and O. K. Miller, Jr. 2002. One hundred and seventeen clades of euagarics. Mol. Phylogenet. Evol. 23: 357 – 400 .

60. Murphy, J. F., and O. K. Miller, Jr. 1997. Diversity and local distribution of mating alleles in Marasmiellus praeacutus and Collybia subnuda (Basidiomycetes, Agaricales). Can. J. Bot. 75: 8 – 17 .

61. O’Brien, H. E., J. L. Parrent, J. A. Jackson, J. M. Moncalvo, and R. Vilgalys. 2005. Fungal community analysis by large-scale sequencing of environmental samples. Appl. Environ. Microb. 71: 5544 – 5550 .

62. Ochman, H., A. S. Gerber, and D. L. Hartl. 1988. Genetic applications of an inverse polymerase chain reaction. Genetics 120: 621 – 623 .

63. Olesnicky, N. S., A. J. Brown, Y. Honda, S. L. Dyos, S. J. Dowell, and L. A. Casselton. 2000. Self-compatible B mutants in Coprinus with altered pheromone-receptor specificities. Genetics 156: 1025 – 1033 .

64. O’Shea, S. F., P. T. Chaure, J. R. Halsall, N. S. Olesnicky, A. Leibbrandt, I. F. Connerton, and L. A. Casselton. 1998. A large pheromone and receptor gene complex determines multiple B mating type specificities in Coprinus cinereus . Genetics 148: 1081 – 1090 .

65. Ramer, S. W., and R. W. Davis. 1993. A dominant truncation allele identifies a gene, STE20 , that encodes a putative protein kinase necessary for mating in Saccharomyces cerevisiae . Proc. Natl. Acad. Sci. USA 90: 452 – 456 .

66. Raper, J. R. 1966. Genetics of Sexuality in Higher Fungi . Ronald Press, New York, NY.

67. Raper, J. R., M. G. Baxter, and A. H. Ellingboe. 1960. The genetic structure of the incompatibility factors of Schizophyllum commune : the A factor. Proc. Natl. Acad. Sci. USA 46: 833 – 842 .

68. Raper, J. R., and A. S. Flexer. 1971. Mating systems and evolution of the Basidiomycetes, p. 149–167. In R. H. Petersen (ed.), Evolution in the Higher Basidiomycetes . University of Tennessee Press, Knoxville.

69. Riquelme, M., M. P. Challen, L. A. Casselton, and A. J. Brown. 2005. The origin of multiple B mating specificities in Coprinus cinereus . Genetics 170: 1105 – 1119 .

70. Röhr, H., U. Kües, and U. Stahl. 1998. Organelle DNA of plants and fungi: inheritance and recombination. Prog. Bot. 60: 39 – 87 .

71. Sato, K., T. Nishio, R. Kimura, M. Kusaba, T. Suzuki, K. Hatakeyama, D. J. Ockendon, and Y. Satta. 2002. Coevolution of the S -locus genes SRK , SLG and SP11 / SCR in Brassica oleracea and B. rapa . Genetics 162: 931 – 940 .

72. Saville, B. J., Y. Kohli, and J. B. Anderson. 1998. mtDNA recombination in a natural population. Proc. Natl. Acad. Sci. USA 95: 1331 – 1335 .

73. Schirawski, J., B. Heinze, M. Wagenknecht, and R. Kahmann. 2005. Mating type loci of Sporisorium reilianum : novel pattern with three a and multiple b specificities. Eukaryot. Cell 4: 1317 – 1327 .

74. Simchen, G. 1967. Genetic control of recombination and the incompatibility system in Schizophyllum commune . Genet. Res. 9: 195 – 210 .

75. Smulian, A. G., T. Sesterhenn, R. Tanaka, and M. T. Cushion. 2001. The ste3 pheromone receptor gene of Pneumocystis carinii is surrounded by a cluster of signal transduction genes. Genetics 157: 991 – 1002 .

76. Specht, C. A. 1996. Isolation of the Bα and Bβ mating-type loci of Schizophyllum commune . Curr. Genet. 28: 374 – 379 .

77. Specht, C. A., M. M. Stankis, C. P. Novotny, and R. C. Ullrich. 1994. Mapping the heterogeneous DNA region that determines the nine Aα mating-type specificities of Schizophyllum commune . Genetics 137: 709 – 714 .

78. Stankis, M. M., C. A. Specht, H. Yang, L. Giasson, R. C. Ullrich, and C. P. Novotny. 1992. The Aα mating locus of Schizophyllum commune encodes two dissimilar multiallelic homeodomain proteins. Proc. Natl. Acad. Sci. USA 89: 7169 – 7173 .

79. Stoll, M., D. Begerow, and F. Oberwinkler. 2005. Molecular phylogeny of Ustilago , Sporisorium , and related taxa based on combined analyses of rDNA sequences. Mycol. Res. 109: 342 – 356 .

80. Suyama, M., and P. Bork. 2001. Evolution of prokaryotic gene order: genome rearrangements in closely related species. Trends Genet. 17: 10 – 13 .

81. Turgeon, B. G., H. Bohlmann, L. M. Ciuffetti, S. K. Christiansen, G. Yang, W. Schafer, and O. C. Yoder. 1993. Cloning and analysis of the mating-type genes from Cochliobolus heterostrophus . Mol. Gen. Genet. 238: 270 – 284 .

82. Ullrich, R. C., and J. R. Raper. 1974. Number and distribution of bipolar incompatibility factors in Sistotrema brinkmannii . Am. Nat. 108: 506 – 518 .

83. Urban, M., R. Kahmann, and M. Bölker. 1996. The biallelic a mating type locus of Ustilago maydis : remnants of an additional pheromone gene indicate evolution from a multiallelic ancestor. Mol. Gen. Genet. 250: 414 – 420 .

84. Waalwijk, C., T. van der Lee, I. de Vries, T. Hesselink, J. Arts, and G. H. J. Kema. 2004. Synteny in toxigenic Fusarium species: the fumonisin gene cluster and the mating type region as examples. Eur. J. Plant Pathol. 110: 533 – 544 .

85. Walser, P. J., M. Hollenstein, M. J. Klaus, and U. Kües. 2001. Genetic analysis of basidiomycete fungi, p. 59–90. In N. J. Talbot (ed.), Molecular and Cell Biology of Filamentous Fungi: a Practical Approach . Oxford University Press , Oxford, United Kingdom .

86. Wang, P., C. B. Nichols, M. B. Lengeler, M. E. Cardenas, G. M. Cox, J. R. Perfect, and J. Heitman. 2002. Mating-type-specific and nonspecific PAK kinases play shared and divergent roles in Cryptococcus neoformans . Eukaryot. Cell 1: 257 – 272 .

87. Wendland, J., L. J. Vaillancourt, J. Hegner, K. B. Lengeler, K. J. Laddison, C. A. Specht, C. A. Raper, and E. Kothe. 1995. The mating-type locus Bα1 of Schizophyllum commune contains a pheromone receptor gene and putative pheromone genes. EMBO J. 14: 5271 – 5278 .

88. Whitehouse, H. L. K. 1949. Multiple allelomorph heterothallism in the fungi. New Phytol. 48: 212 – 244 .

89. Yan, Z., C. M. Hull, J. Heitman, S. Sun, and J. P. Xu. 2004. SXI1α controls uniparental mitochondrial inheritance in Cryptococcus neoformans . Curr. Biol. 14: R743 – R744.

90. Yan, Z., and J. P. Xu. 2003. Mitochondria are inherited from the MATa parent in crosses of the basidiomycete fungus Cryptococcus neoformans . Genetics 163: 1315 – 1325 .