Palma Dovis, Leopoldo
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Palma Dovis
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Leopoldo
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Producción Agraria
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Publication Open Access Genetic breeding of edible mushrooms: from the genome to the production of new varieties of Pleurotus ostreatus(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006) Pisabarro de Lucas, Gerardo; Peñas Parrila, María Manuela; Pérez Garrido, María Gumersinda; Park, Sang-Kyu; Eizmendi Goikoetxea, María Arantzazu; Parada Albarracín, Julián Andrés; Palma Dovis, Leopoldo; Idareta Olagüe, Eneko; Jurado Cabanillas, Javier; Castellón Gadea, Jordi; Ramírez Nasto, Lucía; Producción Agraria; Nekazaritza EkoizpenaThe breeding of new varieties of industrially cultivated edible mushrooms must proceed in the framework defined by the breeding objectives, the biological characteristics of the material and the legal and cultural constraints imposed to the breeding technology to be used. This last aspect is of the greatest importance in the case of a food that is considered in European countries as high quality and closer to nature than other industrially produced foods. This fact prevents the use of genetic-engineering based technologies for breeding, as the consumers would hardly accept genetically modified mushrooms. Consequently, mushroom breeding should be based on time-consuming processes of classic breeding. Molecular biology, however, can offer to the breeders useful tools for speeding up the selection process, for evaluating the new bred lines and, last but not least, to identify and eventually protect legally the outcome of their breeding programs.Publication Open Access Computational prediction of protein-coding gene and annotation of DNA sequences with agronomic interest in Pleurotus ostreatus (Oyster Mushroom)(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006) Palma Dovis, Leopoldo; Peñas Parrila, María Manuela; Ramírez Nasto, Lucía; Pisabarro de Lucas, Gerardo; Producción Agraria; Nekazaritza EkoizpenaPleurotus ostreatus, commonly known as oyster mushroom, is a commercially important edible fungus with interesting biotechnological properties. Quantitative trait loci (QTL) analyses are rare in fungi and little is known about their number, position, and genetic structure. Previous studies of our group have allowed the construction of a genetic linkage map of P. ostreatus var. florida, which has provided the basis for performing an efficient QTL analysis. In fact, there is a region of the chromosome VII of P. ostreatus where the most QTLs related to the production and precocity characters have been mapped. These quantitative traits are presumably under the control of a polygenic genetic system and could be associated with some chromosomal regions. The hypothesis of this work is that there is a region in the chromosome VII of protoclon PC15 (monokaryotic parental of the N001 dikaryotic strain) where exist genes which are responsible for the QTLs mentioned above. In order to test this hypothesis, we are developing a molecular QTL analysis through the sequencing of a region with an approximated size of 320 Kbp in chromosome VII (protoclon PC15). For this purpose, a BAC genomic library was constructed and two BAC clones spanning the region of interest are being sequenced. To carry out an efficient computational prediction of protein-coding genes and its annotation on the partial sequences obtained up to date, we have used different Internet resources such as BLASTx, BLASTp, BLASTn, and FGENESH trained on some basidiomycetes genomic data like Phanerochaete chrysosporium and Cryptococcus neoformans (SoftBerry). To our knowledge, this is the firs molecular QTL analysis performed on this edible mushroom.