Mushroom breeding program in Iran
Fecha
2006Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
nodoi-noplumx
|
Resumen
Mushroom cultivation is a newly established, but growing industry in Iran. There are about 120 producers
with a total of about 20,000 tones per year in the country. Agaricus bisporus consists of more
than 85 percents of the total production of all mushrooms produced in Iran. Its yield average is about
12-15 kg/m2, while in the global production it is about 27-30 kg/m2. This is mainly due to us ...
[++]
Mushroom cultivation is a newly established, but growing industry in Iran. There are about 120 producers
with a total of about 20,000 tones per year in the country. Agaricus bisporus consists of more
than 85 percents of the total production of all mushrooms produced in Iran. Its yield average is about
12-15 kg/m2, while in the global production it is about 27-30 kg/m2. This is mainly due to using strains
of genetically weak performance.
Since ten years ago a breeding program was started with emphasis on breeding high yielding strains in
Mashhad. The short-term effort consisted of selection among single spore isolates and multispores
cultures with a better performance in yield. The long-term effort consisted of employing of heterosis
in hybrid strains. To reach the aim, more than 350 homokaryone isolates were selected through RAPD
markers followed by yield trials from commercial and domestic strains, and crosses were made in many
combinations using diallel method.
Selection among spores of commercial strains could somehow recover their potential genetic capacity,
so that an average of 22 Kg/m2 was recorded in the selected strains. Using growth type as a marker, it
was possible to decrease the number of isolates in final stages of selection for homokaryones in solid
medium or spawn. Cluster analysis based on average of band numbers emerged by RAPD markers,
could separate homokaryotic and heterokaryotic isolates in two distinct groups. Some hybrids showed
a better mycelia growth and a considerable higher yield than their parents. Efforts are now being made
to collect wild strains of Agaricus bisporus in Iran and evaluating them for desirable genes including resistance
to pest and diseases. [--]
Materias
Mushroom cultivation,
Agaricus bisporus,
Iran
Editor
Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
Publicado en
Antonio G. Pisabarro and Lucía Ramírez (eds.): VI Meeting on Genetics and Cellular Biology of Basidiomycetes (GCBB-VI). Pamplona: Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006.
Notas
Comunicación presentada al VI Meeting on Genetics and Cellular Biology of Basidiomycetes (GCBB-VI), organizado por y celebrado en la Universidad Pública de Navarra el 3-6 de junio de 2005.