Molecular Biology and Evolution, Vol 13, 809-817, Copyright © 1996 by Society for Molecular Biology and Evolution
DM Geiser, WE Timberlake and ML Arnold
If strictly mitotic asexual fungi lack recombination, the conventional view
predicts that they are recent derivatives from older meiotic lineages. We
tested this by inferring phylogenetic relationships among closely related
meiotic and strictly mitotic taxa with Aspergillus conidial (mitotic)
states. Phylogenies were constructed by using DNA sequences from the
mitochondrial small ribosomal subunit, the nuclear ribosomal internal
transcribed spacers, and the nuclear 5.8S ribosomal gene. Over 920 bp of
sequence was analyzed for each taxon. Phylogenetic analysis of both the
mitochondrial and nuclear data sets showed at least four clades that
possess both meiotic and strictly mitotic taxa. These results support the
hypothesis that strictly mitotic lineages arise frequently from more
ancient meiotic lineages with Aspergillus conidial states. Many of the
strictly mitotic species examined retained characters that may be vestiges
of a meiotic state, including the production of sclerotia, sclerotium-like
structures, and hulle cells.
ORIGINAL ARTICLE
Loss of meiosis in Aspergillus
Department of Genetics, University of Georgia, USA. dgeiser@mendel.berkeley. edu
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  B. W. Horn, J. H. Ramirez-Prado, and I. Carbone The sexual state of Aspergillus parasiticus Mycologia, March 1, 2009; 101(2): 275 - 280. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S. Horowitz Brown, R. Zarnowski, W. C. Sharpee, and N. P. Keller Morphological Transitions Governed by Density Dependence and Lipoxygenase Activity in Aspergillus flavus Appl. Envir. Microbiol., September 15, 2008; 74(18): 5674 - 5685. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D.M. Geiser, M.A. Klich, J.C. Frisvad, S.W. Peterson, J. Varga, and R.A. Samson The current status of species recognition and identification in Aspergillus Stud Mycol, January 1, 2007; 59(1): 1 - 10. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Pal, A.D. van Diepeningen, J. Varga, R.F. Hoekstra, P.S. Dyer, and A.J.M. Debets Sexual and vegetative compatibility genes in the aspergilli Stud Mycol, January 1, 2007; 59(1): 19 - 30. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. Buschbom and D. Barker Evolutionary History of Vegetative Reproduction in Porpidia s.l. (Lichen-Forming Ascomycota) Syst Biol, June 1, 2006; 55(3): 471 - 484. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 Z. Antal, J. Varga, L. Kredics, A. Szekeres, L. Hatvani, L. Manczinger, C. Vagvolgyi, and E. Nagy Intraspecific mitochondrial DNA polymorphism within the emerging filamentous fungal pathogen Trichoderma longibrachiatum J. Med. Microbiol., January 1, 2006; 55(1): 31 - 35. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. Xu Genotype-Environment Interactions of Spontaneous Mutations for Vegetative Fitness in the Human Pathogenic Fungus Cryptococcus neoformans Genetics, November 1, 2004; 168(3): 1177 - 1188. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. A. Wilson, A. M. Calvo, P.-K. Chang, and N. P. Keller Characterization of the Aspergillus parasiticus {Delta}12-desaturase gene: a role for lipid metabolism in the Aspergillus-seed interaction Microbiology, September 1, 2004; 150(9): 2881 - 2888. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. M. Calvo, J. Bok, W. Brooks, and N. P. Keller veA Is Required for Toxin and Sclerotial Production in Aspergillus parasiticus Appl. Envir. Microbiol., August 1, 2004; 70(8): 4733 - 4739. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Varga Mating type gene homologues in Aspergillus fumigatus Microbiology, April 1, 2003; 149(4): 816 - 819. [Full Text] [PDF]
|
|
|
|
|
|
J. Xu Estimating the Spontaneous Mutation Rate of Loss of Sex in the Human Pathogenic Fungus Cryptococcus neoformans Genetics, November 1, 2002; 162(3): 1157 - 1167. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. F. LoBuglio and J. W. Taylor Recombination and genetic differentiation in the mycorrhizal fungus Cenococcum geophilum Fr Mycologia, September 1, 2002; 94(5): 772 - 780. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. R. Borneman, M. J. Hynes, and A. Andrianopoulos An STE12 Homolog From the Asexual, Dimorphic Fungus Penicillium marneffei Complements the Defect in Sexual Development of an Aspergillus nidulans steA Mutant Genetics, March 1, 2001; 157(3): 1003 - 1014. [Abstract] [Full Text]
|
|
|
|
 |
|
 J. W. Taylor, D. M. Geiser, A. Burt, and V. Koufopanou The Evolutionary Biology and Population Genetics Underlying Fungal Strain Typing Clin. Microbiol. Rev., January 1, 1999; 12(1): 126 - 146. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. M. Geiser, J. I. Pitt, and J. W. Taylor Cryptic speciation and recombination in the aflatoxin-producing fungus Aspergillus flavus PNAS, January 6, 1998; 95(1): 388 - 393. [Abstract] [Full Text] [PDF]
|
|