Wei Shuwei, Qi Bao, Zhang Xiaozhuo, Zhang Hui, Shi Dongfang, Wang Qi, Li Yu, Peng Zhanwu
Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China.
Hefei Mycological Valley Innovation Institute, Hefei, China.
BMC Microbiol. 2025 May 24;25(1):320. doi: 10.1186/s12866-025-04036-x.
Myochromella mammosa, a novel species from southwestern China, is distinguished by its small, solitary or gregarious basidiomata. The pileus is clock-shaped, with distinct central mastoids, edge stripes, and a darker center that flattens upon maturation. The stipe is white, firm when young, and becomes hollow and slightly thickened at the base with age. We conducted a comprehensive analysis of publicly available ITS sequences from NCBI-GenBank and fungal amplicon sequencing data from NCBI-SRA to explore the global distribution and enumeration of recorded species of Myochromella. At a 98% sequence similarity threshold, eleven species were identified, including eight without formal designations. Myochromella's diversity is primarily Northern Hemisphere-centric and tends toward endemic distribution. Leveraging amplicon sequencing data sets enables precise species diversity assessments, enhancing field collection efficiency and providing novel insights into macrofungal species diversity.
乳房肉色孢菌（Myochromella mammosa）是一种来自中国西南部的新物种，其特点是担子果小，单生或丛生。菌盖呈钟形，有明显的中央乳头状突起、边缘条纹，且中心颜色较深，成熟时会变平。菌柄白色，幼嫩时坚实，随着年龄增长基部会中空并稍有增粗。我们对来自NCBI - GenBank的公开ITS序列以及来自NCBI - SRA的真菌扩增子测序数据进行了全面分析，以探究肉色孢菌属（Myochromella）已记录物种的全球分布和数量。在98%的序列相似性阈值下，鉴定出了11个物种，其中包括8个未正式命名的物种。肉色孢菌属的多样性主要以北半球为中心，且倾向于特有分布。利用扩增子测序数据集能够进行精确的物种多样性评估，提高野外采集效率，并为大型真菌物种多样性提供新的见解。
