采自吉林省敦化市的2个蘑菇目(Agaricales)新记录种

Two new record species of Agaricales from Dunhua city, Jilin province

摘要:

【背景】在中国吉林省延边朝鲜族自治州敦化市寒葱岭红叶谷进行大型真菌资源调查的过程中发现了2个物种。【目的】确定这2个物种的分类地位。【方法】采集大型真菌标本，对其形态进行详细观察和描述，并提取DNA、测定rDNA ITS序列，基于最大似然法和贝叶斯法构建分子系统发育树。【结果】鉴定结果表明，这2个蘑菇目物种分别是径边刺毛鬼伞(Tulosesus callinus)和拉氏红菇(Russula lakhanpalii)，在形态上与原始描述高度吻合，系统发育分析也验证了形态学的鉴定结果。【结论】拉氏红菇(R. lakhanpalii)系中国首次报道，径边刺毛鬼伞(T. callinus)为吉林省新记录种。

Abstract:

[Background] Two species were discovered during the investigation of macrofungal resources in Hancongling Red Leaf Valley, Dunhua city, Yanbian Korean Autonomous Prefecture, Jilin province, China. [Objective] To determine the taxonomic status of the two species. [Methods] The samples of macrofungi were collected, and their morphology was observed and described in detail. After DNA extraction, the rDNA ITS sequence of each species was determined, and phylogenetic trees were constructed based on maximum likelihood method and Bayesian inference. [Results] The two species were respectively identified as Tulosesus callinus and Russula lakhanpalii, with the morphology consistent with the original description. The phylogenetic analysis confirmed the identification results based on morphology. [Conclusion] R. lakhanpalii is firstly reported in China and T. callinus is a new record species in Jilin province.