2025/07/17 by Xiaofei Shi, Shiru Zhang, Gregory M. Mueller +3 · 1 voice
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Mycorrhizal Fungi and Plant Interactions #Lichen and fungal ecology #Plant Pathogens and Fungal Diseases
paper · doi:10.3897/imafungus.16.144260
Suillus Gray ( Suillaceae , Boletales ) is an ectomycorrhizal fungal genus with exceptional host specificity associated with Pinaceae . The sampling gap in East Asia could be filled by discovering new species and unreported hosts. This study provides a comprehensive multigene dataset (ITS, LSU, TEFα-1 , RPB1 , and RPB2 ) of Suillus , covering about 80% of known species. Species recognitions by concordance phylogenetic species recognition (GCPSR), concatenation, and coalescent methods were conducted. Seventy-one Suillus species are recognized globally using coalescent analyses and GCPSR, of which 12 new species, 5 new locality records, and 14 potentially new species were revealed in East Asia. The higher classification of Suillus is another breakthrough supported by morphology and concatenation analyses of protein-coding genes and ribosomal loci. New subgenera Boletinus , Fuscoboletinus and Larigni are all associated with Larix , whereas subgenus Douglasia prefers to Pseudotsuga menziesii and subgenus Suillus prefers Pinus . Subgenus Suillus contains most of the diversity and is further divided into two phylogenetic sections Suillus and Diversipedes . This study aimed to characterize Suillus subgenera, sections, and new species based on molecular data combined with morphology and ecology.