Table 1. Collections of Pholiota microspora used in this study.
| ID | MLG a | Type | Organ | Date b | Collector c | Location / Source |
| 218 | G14 | Wild strain | Hypha | 1995/10/01 | SG | Etanbetsu, Asahikawa, Hokkaido, Japan |
| 242 | G03 | Wild strain | Hypha | 1998/10/15 | KB | Kamui-yama, Okushiri, Hokkaido, Japan |
| 243 | G38 | Wild strain | Hypha | 1998/10/15 | KB | Kamui-yama, Okushiri, Hokkaido, Japan |
| 171 | G30 | Wild strain | Hypha | 1996/10/24 | AK | Nisimeya-mura, Aomori, Japan |
| 172 | G12 | Wild strain | Hypha | 1996/10/24 | AK | Ammonnotaki, Nisimeya-mura, Aomori, Japan |
| 173 | G39 | Wild strain | Hypha | 1996/10/24 | AK | Ammonnotaki, Nisimeya-mura, Aomori, Japan |
| 174 | G34 | Wild strain | Hypha | 1996/10/24 | AK | Ammonnotaki, Nisimeya-mura, Aomori, Japan |
| 192 | G25 | Wild strain | Hypha | 1996/11/06 | KB | Yagen-onsen, Ohata-machi, Aomori, Japan |
| K32 | KG62 | Wild strain | DNA extract | 2014 | KX | 26-99 strain, Hirosaki, Aomori, Japan |
| K07 | KG45 | Wild strain | DNA extract | ― | KX | 62-2 strain, Mt. Hakkoda, Aomori, Japan |
| 216 | G04 | Wild strain | Hypha | 1997/10/21 | KB | Hayasaka-kogen, Morioka, Iwate, Japan |
| 217 | G06 | Wild strain | Hypha | 1997/10/21 | KB | Hayasaka-kogen, Morioka, Iwate, Japan |
| 121 | G33 | Wild strain | Hypha | 1994/11/01 | AK | Yuri-gun, Akita, Japan |
| K27 | KG06 | Wild strain | DNA extract | 2006 | KX | 19-25 strain, Towada, Akita, Japan |
| K28 | KG60 | Wild strain | DNA extract | 2009 | KX | 21-48 strain, Mt. Funagata, Miyagi, Japan |
| K29 | KG07 | Wild strain | DNA extract | 2014 | KX | 26-59 strain, Miyagi, Japan |
| K30 | KG07 | Wild strain | DNA extract | 2014 | KX | 26-60 strain, Miyagi, Japan |
| K31 | KG07 | Wild strain | DNA extract | 2014 | KX | 26-61 strain, Miyagi, Japan |
| 111 | G46 | Wild strain | Hypha | 1993/10/30 | AK | Gassan, Yamagata, Japan |
| 112 | G26 | Wild strain | Hypha | 1993/10/30 | AK | Gassan, Yamagata, Japan |
| 248 | G49 | Wild strain | Hypha | 1999/10/29 | KB | Nishikawa-machi, Yamagata, Japan |
| 255 | G17 | Wild strain | Hypha | 1999/10/29 | AK | Nishikawa-machi, Yamagata, Japan |
| 257 | G29 | Wild strain | Hypha | 1999/10/29 | AK | Nishikawa-machi, Yamagata, Japan |
| 262 | G50 | Wild strain | Hypha | 1999/10/29 | AK | Nishikawa-machi, Yamagata, Japan |
| H01 | GH1 | Wild strain | Fruit body | 2020/10/25 | AH | Nukumidaira, Oguni-machi, Yamagata, Japan |
| H02 | GH2 | Wild strain | Fruit body | 2020/10/25 | AH | Nukumidaira, Oguni-machi, Yamagata, Japan |
| 202 | G27 | Wild strain | Hypha | 1997/10/29 | AK | Tengendai, Yonezawa, Yamagata, Japan |
| K04 | KG32 | Wild strain | DNA extract | 2013/07/19 | KX | Iide, Yamagata, Japan |
| K33 | KG23 | Wild strain | DNA extract | 2015/10/22 | KX | 27-111 strain, Yamagata, Japan |
| K34 | KG36 | Wild strain | DNA extract | 2015/10/22 | KX | 27-122 strain, Yamagata, Japan |
| K35 | KG56 | Wild strain | DNA extract | 2015/10/26 | KX | 27-140 strain, Mogami-gun, Yamagata, Japan |
| K36 | KG52 | Wild strain | DNA extract | 2015/10/26 | KX | 27-141 strain, Mogami-gun, Yamagata, Japan |
| K37 | KG08 | Wild strain | DNA extract | 2015/10/26 | KX | 27-144 strain, Mogami-gun, Yamagata, Japan |
| 222 | G22 | Wild strain | Hypha | 1998/11/11 | AK | Mt. Kinpoku-san, Sado, Niigata, Japan |
| 224 | G48 | Wild strain | Hypha | 1998/11/11 | AK | Mt. Kinpoku-san, Sado, Niigata, Japan |
| 226 | G10 | Wild strain | Hypha | 1998/11/11 | AK | Mt. Kinpoku-san, Sado, Niigata, Japan |
| 290 | G40 | Wild strain | Hypha | 2000/10/17 | TK | Akiyamago, Tsunan-machi, Niigata, Japan |
| 291 | G42 | Wild strain | Hypha | 2000/10/17 | TK | Akiyamago, Tsunan-machi, Niigata, Japan |
| 114 | G51 | Wild strain | Hypha | 1993/10/30 | AK | Mori-toge, Koriyama, Fukushima, Japan |
| 012 | G23 | Wild strain | Hypha | 1982/10/21 | MW | Yaheishiro, Nishiaizu, Fukushima, Japan |
| 013 | G13 | Wild strain | Hypha | 1982/10/21 | MW | Yaheishiro, Nishiaizu, Fukushima, Japan |
| 022 | G18 | Wild strain | Hypha | 1982/10/21 | MW | Yaheishiro, Nishiaizu, Fukushima, Japan |
| 015 | G19 | Wild strain | Hypha | 1982/10/21 | MW | Yaheishiro, Nishiaizu, Fukushima, Japan |
| 020 | G19 | Wild strain | Hypha | 1982/10/21 | MW | Yaheishiro, Nishiaizu, Fukushima, Japan |
| 021 | G19 | Wild strain | Hypha | 1982/10/21 | MW | Yaheishiro, Nishiaizu, Fukushima, Japan |
| 017 | G41 | Wild strain | Hypha | 1982/10/21 | MW | Yaheishiro, Nishiaizu, Fukushima, Japan |
| 018 | G37 | Wild strain | Hypha | 1982/10/21 | MW | Yaheishiro, Nishiaizu, Fukushima, Japan |
| 294 | G20 | Wild strain | Hypha | 2000/11/09 | AK | Hinoemata-mura, Fukushima, Japan |
| 237 | G43 | Wild strain | Hypha | 1998/10/08 | AK | Furaisawa, Kaneyama-machi, Fukushima, Japan |
| 270 | G44 | Wild strain | Hypha | 1999/11/10 | AK | Tadami-machi, Fukushima, Japan |
| 199 | G47 | Wild strain | Hypha | 1997/10/19 | AK | Tenei-mura, Iwase-gun, Fukushima, Japan |
| 188 | G31 | Wild strain | Hypha | 1995/11/08 | KM | Gokayama, Taira-mura, Toyama, Japan |
| 116 | G28 | Wild strain | Hypha | 1993/10/28 | KM | Izumi-mura, Onogun, Fukui, Japan |
| 117 | G28 | Wild strain | Hypha | 1993/10/28 | KM | Izumi-mura, Onogun, Fukui, Japan |
| 118 | G28 | Wild strain | Hypha | 1993/10/28 | KM | Izumi-mura, Onogun, Fukui, Japan |
| 119 | G28 | Wild strain | Hypha | 1993/10/28 | KM | Izumi-mura, Onogun, Fukui, Japan |
| 115 | G36 | Wild strain | Hypha | 1993/10/28 | KM | Izumi-mura, Onogun, Fukui, Japan |
| 283 | G02 | Wild strain | Hypha | 2000/10/18 | KB | Akiyamago, Sakae-mura, Nagano, Japan |
| 284 | G02 | Wild strain | Hypha | 2000/10/18 | SO | Akiyamago, Sakae-mura, Nagano, Japan |
| 287 | G05 | Wild strain | Hypha | 2000/10/18 | KM | Akiyamago, Sakae-mura, Nagano, Japan |
| 288 | G01 | Wild strain | Hypha | 2000/10/18 | KB | Akiyamago, Sakae-mura, Nagano, Japan |
| 106 | G09 | Wild strain | Hypha | 1993/10/17 | AK | Otari-mura, Nagano, Japan |
| 107 | G16 | Wild strain | Hypha | 1993/10/28 | AK | Otari-mura, Nagano, Japan |
| 108 | G32 | Wild strain | Hypha | 1993/10/28 | AK | Otari-mura, Nagano, Japan |
| 109 | G32 | Wild strain | Hypha | 1993/10/28 | AK | Otari-mura, Nagano, Japan |
| 105 | G45 | Wild strain | Hypha | 1993/10/28 | AK | Otari-mura, Nagano, Japan |
| 189 | G21 | Wild strain | Hypha | 1996/10/24 | KB | Daisen, Tottori, Japan |
| 190 | G08 | Wild strain | Hypha | 1996/10/24 | KB | Daisen, Tottori, Japan |
| 204 | G11 | Wild strain | Hypha | 1997/10/30 | AK | Ishizuchi-yama, Kochi, Japan |
| 205 | G00 | Wild strain | Hypha | 1997/10/30 | AK | Ishizuchi-yama, Kochi, Japan |
| 209 | G00 | Wild strain | Hypha | 1997/10/30 | AK | Ishizuchi-yama, Kochi, Japan |
| 210 | G00 | Wild strain | Hypha | 1997/10/30 | AK | Ishizuchi-yama, Kochi, Japan |
| 211 | G00 | Wild strain | Hypha | 1997/10/30 | AK | Ishizuchi-yama, Kochi, Japan |
| F27 | CG1 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | Putative original strain for indoor sawdust cultivation |
| Tohoku-N104 | CG1 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | Tohoku N104 strain, Kinokkusu Co., Miyagi, Japan |
| KX-N006 | CG2 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | KX-N006 strain, Kinokkusu Co., Miyagi, Japan― |
| KX-N007 | CG3 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | KX-N007 strain, Kinokkusu Co., Miyagi, Japan |
| KX-N008 | CG3 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | KX-N008 strain, Kinokkusu Co., Miyagi, Japan |
| KX-N009 | CG4 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | KX-N009 strain, Kinokkusu Co., Miyagi, Japan |
| KX-N010 | CG2 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | KX-N010 strain, Kinokkusu Co., Miyagi, Japan |
| Tohoku-N123 | CG5 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | Tohoku N123 strain, Kinokkusu Co., Miyagi, Japan |
| Tohoku-N127 | CG6 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | Tohoku N127 strain, Kinokkusu Co., Miyagi, Japan |
| 007 | CG1 | Cultivated strain for sawdust cultivation | Hypha | ― | FPFRC | Inoculum for wooden tray cultivation, Japan |
| 008 | CG6 | Cultivated strain for sawdust cultivation | Hypha | ― | FPFRC | Inoculum for wooden tray cultivation, Japan |
| N103 | KG02 | Cultivated strain for log cultivation | DNA extract | ― | KX | N103 strain, Kinokkusu Co., Miyagi, Japan |
| KX-N109 | KG58 | Cultivated strain for log cultivation | DNA extract | ― | KX | KX-N109 strain, Kinokkusu Co., Miyagi, Japan |
| Mori-13 | CG6 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | Mori-13 strain, Mori Sangyo Co. Ltd, Gunma, Japan |
| N245 | CG7 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | N245 strain, Kawamura-shokuyokin-kenkyujo Co., Yamagata, Japan |
| N258 | CG5 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | N258 strain, Kawamura-shokuyokin-kenkyujo Co., Yamagata, Japan |
| Hokken-N108 | CG5 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | N108 strain, Hokken Co. Ltd, Tochigi, Japan |
| Hokken-N160 | CG6 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | N160 strain, Hokken Co. Ltd, Tochigi, Japan |
| Fukushima-N1 | CG8 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | Fukushima N1 strain, FPFRC, Fukushima |
| Fukushima-N2 | KG42 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | Fukushima N2 strain, FPFRC, Fukushima |
| KM-86 | KG02 | Cultivated strain for log cultivation | DNA extract | 2012 | KX | KM-86 strain, Kagawashiitake Co., Miyagi, Japan |
| KM-88 | KG09 | Cultivated strain for log cultivation | DNA extract | 2012 | KX | KM-88 strain, Kagawashiitake Co., Miyagi, Japan |
| K10 | KG02 | Cultivated strain for log cultivation | DNA extract | 2013/07/19 | KX | 5-126 strain, Miyagi, Japan |
| N133 | CG6 | Cultivated strain for sawdust cultivation | DNA extract | ― | KX | N133 strain, Sakegawa, Yamagata, Japan |
| K25 | KG02 | Cultivated strain for log cultivation | DNA extract | ― | KX | Middle-maturing strain, Sakata-Kawamura, Japan |
| K26 | KG02 | Cultivated strain for log cultivation | DNA extract | ― | KX | Middle-maturing strain, Amarume-Kawamura, Japan |
| CP06 | CG3 | Commercial product | Fruit body | 2019/11 | AH | Donguri farm Coop., Miyagi, Japan |
| K17 | CG5 | Commercial product | DNA extract | 2021/07/06 | KX | Fresh-nameko, SugawaraReizou Co., Ltd., Yamagata, Japan |
| K18 | CG5 | Commercial product | DNA extract | 2014/05/08 | KX | Okki-nameko, SugawaraReizou Co., Ltd., Yamagata, Japan |
| K19 | CG5 | Commercial product | DNA extract | 2014/05/08 | KX | Chokai-nameko, SugawaraReizou Co., Ltd., Yamagata, Japan |
| K40 | CG5 | Commercial product | Fruit body | 2021/08/04 | AH | Chokai-nameko, SugawaraReizou Co., Ltd., Yamagata, Japan |
| K41 | CG3 | Commercial product | Fruit body | 2021/07/11 | AH | JA-Oishii-mogami Coop., Yamagata, Japan |
| CP09 | CG3 | Commercial product | Fruit body | 2019/11 | AH | Oak farm Coop., Yamagata, Japan |
| CP01 | CG4 | Commercial product | Fruit body | 2019/11 | AH | JA-Fukushima-mirai Coop., Fukushima, Japan |
| K24 | CG5 | Commercial product | DNA extract | 2014 | KX | Suzuki farm Co., Ltd., Fukushima, Japan |
| CP03 | CG5 | Commercial product | Fruit body | 2019/11 | AH | Suzuki farm Co., Ltd., Fukushima, Japan |
| CP04 | CG5 | Commercial product | Fruit body | 2019/11 | AH | Suzuki farm Co., Ltd., Fukushima, Japan |
| CP05 | CG5 | Commercial product | Fruit body | 2019/11 | AH | Suzuki farm Co., Ltd., Fukushima, Japan |
| CP07 | CG3 | Commercial product | Fruit body | 2019/11 | AH | An individual farmer, Koriyama, Fukushima, Japan |
| CP08 | CG3 | Commercial product | Fruit body | 2019/11 | AH | Happy farm Co., Ltd., Fukushima, Japan |
| CP02 | CG3 | Commercial product | Fruit body | 2019/11 | AH | JA-Tokamachi Coop., Niigata, Japan |
| K43 | CG3 | Commercial product | Fruit body | 2021/12/12 | AH | JA- Tanofuji Coop., Gunma, Japan |
| K44 | CG3 | Commercial product | Fruit body | 2021/07/11 | AH | JA-Nagano Coop., Nagano, Japan |
| K46 | CG3 | Commercial product | Fruit body | 2021/12/18 | TT | Nameko farm Hida Coop., Gifu, Japan |
| K22 | CG3 | Commercial product | DNA extract | 2010/11/29 | KX | Akaike farm Coop., Shizuoka, Japan |
| K45 | CG3 | Commercial product | Fruit body | 2021/12/16 | AH | Kamiyukawa kinoko-seisan Coop., Nara, Japan |
| K42 | CG3 | Commercial product | Fruit body | 2021/12/16 | AH | Oyamacho-nokyo Coop., Oita, Japan |
| CP10 | CG5 | Commercial product | Fruit body | 2021/07 | SK | Marukome Co., Ltd., a processed food made in China |
| K23 | NA | Commercial product | DNA extract | 2017/11/27 | KX | Marukome Co., Ltd., a processed food made in China |
| K38 | KG11 | Cultivated strain for sawdust cultivation | DNA extract | 2013 | KX | 25-1 strain, China |
| No137 | KG02 | Cultivated strain for log cultivation | DNA extract | ― | KX | No137 strain, China |
a MLG: Multi-locus genotype based on 14 microsatellite markers. b Date: sampling date for wild strain or purchase date for commercial product. c Collectors: AH, Akira Hirao; AK. Atsushi Kumata; FPFRC, Fukushima Prefecture Forest Research Center; KB, Katsuhiko Babasaki; KX, Kinokkusu Co.;KM; Kazuhiko Masuno; SG, Seiki Gisusi; SK, Shingo Kaneko; SO, Shinjiro Oya; TK, Takaaki Kishimoto; TT, Toshihito Takagi; MW, Masaaki Watanabe.