Zeng Nian-Kai, Liang Zhi-Qun, Wu Gang, Li Yan-Chun, Yang Zhu L, Liang Zhi-Qun
College of Pharmacy, Hainan Medical University, Haikou 571199, China.
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
Mycologia. 2016 Mar-Apr;108(2):363-80. doi: 10.3852/15-072. Epub 2016 Jan 6.
Species of the genus Retiboletus (Boletaceae, Boletales) in China are investigated based on morphology and phylogenetic analyses of DNA sequences from nuc rDNA internal transcribed spacer (ITS) and partial 28S regions and sequences from the translation elongation factor 1-a gene (tef1a). Six lineages are recovered among the collections studied. Five of these are documented and presented in the present paper, including three new species and two new combinations. The remaining species is not described due to the paucity of material. The specimens from China identified as "R. ornatipes" or "R. retipes" are in fact R. sinensis or R. kauffmanii, those labeled "R. griseus" are either R. fuscus or R. pseudogriseus A key to all known taxa of the genus is provided. Phylogenetic relationships of taxa within Retiboletus are partially resolved. A preliminary biogeographical analysis shows that allied species of Retiboletus between eastern Asia and North/Central America are common but there are no Retiboletus species common to both continents. Species of Retiboletus in Japan and southern China are conspecific or closely related.
基于对核糖体DNA内转录间隔区（ITS）和部分28S区域的DNA序列以及翻译延伸因子1-α基因（tef1a）序列的形态学和系统发育分析，对中国的网柄牛肝菌属（牛肝菌科，牛肝菌目）物种进行了研究。在所研究的样本中发现了六个谱系。其中五个在本文中进行了记录和描述，包括三个新物种和两个新组合。由于材料稀少，其余物种未作描述。在中国被鉴定为“华丽网柄牛肝菌”或“红网柄牛肝菌”的标本实际上是中华网柄牛肝菌或考夫曼网柄牛肝菌，那些标记为“灰网柄牛肝菌”的标本要么是暗褐网柄牛肝菌，要么是假灰网柄牛肝菌。提供了该属所有已知分类群的检索表。网柄牛肝菌属内分类群的系统发育关系得到了部分解析。初步的生物地理学分析表明，东亚与北美/中美洲之间的网柄牛肝菌 allied species很常见，但两大洲没有共同的网柄牛肝菌物种。日本和中国南方的网柄牛肝菌物种是同种或密切相关的。 （注：原文中“allied species”不太明确准确意思，可能影响翻译的精准度）
