Document Detail


Evolution of reproductive systems in filamentous ascomycetes. II. Evolution of hermaphroditism and other reproductive strategies.
MedLine Citation:
PMID:  1612927     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The evolution of different reproductive systems in filamentous ascomycetes is studied in a population genetic model. These fungi differ essentially from higher plants and animals because mating types can exist in addition to male and female gametes, and the conidia serve as both male gametes and asexual spores; moreover, selfing is genetically equivalent to asexual reproduction in these haploid organisms. A variable fitness of ascospore production is predicted as the explanation for the evolution of two systems that abundantly exist in nature: hermaphroditism in heterothallic species and the formation of both asexual and sexual spores in homothallic species. Imperfect fungi will evolve if sexual spores do not show a remarkably higher fitness than asexual spores.
Authors:
M J Nauta; R F Hoekstra
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Heredity     Volume:  68 ( Pt 6)     ISSN:  0018-067X     ISO Abbreviation:  Heredity     Publication Date:  1992 Jun 
Date Detail:
Created Date:  1992-07-24     Completed Date:  1992-07-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0373007     Medline TA:  Heredity     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  537-46     Citation Subset:  IM    
Affiliation:
Department of Genetics, Agricultural University, Wageningen, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Ascomycota / genetics*,  physiology
Evolution*
Genetics, Population
Hermaphroditism*
Mathematics
Models, Genetic

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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