Biotechnology Bulletin ›› 2021, Vol. 37 ›› Issue (11): 101-108.doi: 10.13560/j.cnki.biotech.bull.1985.2021-1147

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Evaluation of the Growth and Development Traits for Wild Germplasm of Pleurotus tuoliensis

YANG Ya-shu1(), WANG Ying2, GAO Wei1()   

  1. 1. Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Key Laboratory of Microbial Resources,Ministry of Agriculture and Rural Affairs,Beijing 100081
    2. Inner Mongolia University of Science and Technology Baotou Teachers’ College,Baotou 014030
  • Received:2021-09-07 Online:2021-11-26 Published:2021-12-03
  • Contact: GAO Wei E-mail:yangyashusdau@163.com;gaowei01@caas.cn

Abstract:

The phenotypic identification and analysis of growth and development traits for the wild germplasm of Pleurotus tuoliensis were conducted,thereby the diversity and the utilizability of the germplasm from the special P. tuoliensis were explored. A total of 100 wild strains were randomly selected from the collection of China Center for Mushroom Spawn Standards and Control(CCMSSC). The mycelial growth rate on PDA plates and that in substrate tubes of cottonseed husk as culture material,as well as the formation time of primordia were tested and analyzed. According to the results of statistics,the three tested traits were all quantitative traits controlled by multiple loci,and there was no significant correlation among the three tested traits. The broad-sense heritability of the mycelial growth rates was high,indicating that the phenotypic variation of traits was mainly determined by genotypes although influenced by environments. Primordium formation time of strain group from different geographical origin varied significantly,the shortest for the strain from Tuoli,and the longest for the strains from Qinghe,suggesting that it resulted from the different evolution mechanism for different-origin strains. The findings of this study provides scientific basis for exploring useful germplasm in breeding P. tuoliensis and theoretical foundation for converting excellent germplasm into useful parent material.

Key words: Pleurotus tuoliensis, wild germplasm, mycelial growth rate, primordia formation, phenotypic evaluation