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Breeding new white button mushroom 'Seolgang' and its characteristics
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/277075
New white button mushroom (Agricus bisporus) 'Seolgang' was developed by crossing two monokaryons 'CM020913-27' and SSU423-31. Because of the secondarily homothallism, only a small percentage of the basidia produce 3 or 4 spores, which are mostly haploid (n) and do not fruit. Single spore cultures derived from these types of spores produce a vegetative mycelium that also contain a variable number of genetically identical nuclei per cell called monokaryon. Because of the lack of clamp connections between mono- and dikaryons, a series of mycelial culture and fruiting test were progressed. After crossing, hybrids were cultivated on a small scale and on a commercial scale at a farm. For this, the spawn was made by a commercial spawn producer and the spawned compost by a commercial compost producer. Mycelial growth of 'Seolgang' on CDA was better at 20℃ and 25℃ when it was compared with that of No. 505. The mature cap shape of new strain 'Seolgang' is oblate spheroid and the immature cap shape is round to oblate spheroid. The cap diameter was 41.2 mm on average. In comparison with white strain 505 Ho, the strain had a yield that was 9% higher. It produced fruiting bodies which had a higher weight on average per fruiting body and were 19% firmer with a good shelf life. Days of fruiting body were 3~4 days later than that of No. 505. The physical characteristics such as elasticity, chewiness, adhesiveness were better than that of No. 505. Genetic analysis of the new strain 'Seolgang' showed different profiles compared to No. 505, CM02913-27, SSU413-31, when RAPD primers A02 and O04 were used.
