Hybrid bw-type mushroom strains and lines and methods and uses therefor

Abstract

A culture of the Agaricus bisporus strain B12998 is provided, the culture of the strain B12998 having been deposited under the NRRL Accession Number 50902. Other embodiments include a hybrid strain of Agaricus bisporus having BP-1 as one parent and an OW, SW, HW or experimental BW strain as a second parent. Still other embodiments include a hybrid strain of Agaricus bisporus having strain B12998 as at least one parent. Methods are provided for obtaining offspring including homokaryotic lines from select hybrid strain cultures of Agaricus bisporus, as well as methods and processes for producing hybrid mushroom cultures. A method of mushroom strain development is further provided.

What is claimed is: 
     
         1 . A part of a BW-type hybrid mushroom strain culture incorporating a homokaryon obtained from the hybrid mushroom strain culture designated B12998, a culture of which has been deposited under NRRL Accession No. 50902, the part being a spore. 
     
     
         2 . A part according to  claim 1 , wherein the spore has a single nucleus and is homokaryotic. 
     
     
         3 . A part according to  claim 2 , wherein the spore has two nuclei and is heterokaryotic. 
     
     
         4 . A spore of a BW-type hybrid mushroom strain culture, the BW-type hybrid strain culture incorporating a homokaryon obtained from the hybrid mushroom strain culture designated B12998, a culture of which has been deposited under NRRL Accession No. 50902. 
     
     
         5 . Method of using the spore according to  claim 4 , for mushroom breeding purposes, the method comprising:
 carrying out a mushroom strain development technique selected from the group consisting of inbreeding, outbreeding, selfing, introgressive trait conversions, essential derivation, pedigree-assisted breeding, marker assisted selection, and transformation.