Sampling sizes, haplotype numbers and core/non-core definition for each province. Red shadow indicates the “core” production region, green coloured shadow indicates the “non-core”. Sector graph shows the proportion of the core and non-core region in county level, the yellow colour indicates “mixed” county which contains both the core and non-core production region. The line chart in the lower left corner shows the number of sampling sizes, ITS, COI and the combined haplotypes for each province.

 
 
  Part of: Li Y, Lu J-J, An Y-B, Jiang L, Wu H-J, Wang K, Phurbu D, Luobu J, Ma C, Yang R-H, Dong C-H, Yao Y-J (2025) An attempt of DNA barcodes based geographical origin authentication of the Chinese caterpillar fungus, Ophiocordyceps sinensis. IMA Fungus 16: e144783. https://doi.org/10.3897/imafungus.16.144783