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Applied and Environmental Microbiology, March 2002, p. 1109-1114, Vol. 68, No. 3
0099-2240/02/$04.00+0     DOI: 10.1128/AEM.68.3.1109-1114.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Quantitative Trait Loci Controlling Vegetative Growth Rate in the Edible Basidiomycete Pleurotus ostreatus

Luis M. Larraya,1 Eneko Idareta,1 Dani Arana,1 Enrique Ritter,2 Antonio G. Pisabarro,1 and Lucia Ramírez1*

Departamento de Producción Agraria, Universidad Pública de Navarra, E-31006 Pamplona,1 Neiker, Arkaute, Álava, Spain2

Received 10 October 2001/ Accepted 18 December 2001

Mycelium growth rate is a quantitative characteristic that exhibits continuous variation. This trait has applied interest, as growth rate is correlated with production yield and increased advantage against competitors. In this work, we studied growth rate variation in the edible basidiomycete Pleurotus ostreatus growing as monokaryotic or dikaryotic mycelium on Eger medium or on wheat straw. Our analysis resulted in identification of several genomic regions (quantitative trait loci [QTLs]) involved in the control of growth rate that can be mapped on the genetic linkage map of this fungus. In some cases monokaryotic and dikaryotic QTLs clustered at the same map position, indicating that there are principal genomic areas responsible for growth rate control. The availability of this linkage map of growth rate QTLs can help in the design of rational strain breeding programs based on genomic information.

* Corresponding author. Mailing address: Departamento de Producción Agraria, Universidad Pública de Navarra, E-31006 Pamplona, Spain. Phone: (34) 948 169 130. Fax: (34) 948 169 732. E-mail: lramirez{at}unavara.es.

Applied and Environmental Microbiology, March 2002, p. 1109-1114, Vol. 68, No. 3
0099-2240/02/$04.00+0     DOI: 10.1128/AEM.68.3.1109-1114.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Pisabarro, A. G., Perez, G., Lavin, J. L., Ramirez, L. (2008). Genetic networks for the functional study of genomes. Brief Funct Genomic Proteomic 7: 249-263 [Abstract] [Full Text]  
  • Xu, J. (2004). Genotype-Environment Interactions of Spontaneous Mutations for Vegetative Fitness in the Human Pathogenic Fungus Cryptococcus neoformans. Genetics 168: 1177-1188 [Abstract] [Full Text]  
  • Larraya, L. M., Alfonso, M., Pisabarro, A. G., Ramirez, L. (2003). Mapping of Genomic Regions (Quantitative Trait Loci) Controlling Production and Quality in Industrial Cultures of the Edible Basidiomycete Pleurotus ostreatus. Appl. Environ. Microbiol. 69: 3617-3625 [Abstract] [Full Text]  
  • Penas, M. M., Rust, B., Larraya, L. M., Ramirez, L., Pisabarro, A. G. (2002). Differentially Regulated, Vegetative-Mycelium-Specific Hydrophobins of the Edible Basidiomycete Pleurotus ostreatus. Appl. Environ. Microbiol. 68: 3891-3898 [Abstract] [Full Text]  


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