Departamento de Fitopatologia, Universidade de Brasília , Brasília, Distrito Federal, 70910-900, Brazil.
Empresa Brasileira de Pesquisas Agropecuárias (EMBRAPA)-Hortaliças , 70275-970, Brasília, Distrito Federal, Brazil.
Mycologia. 2020 Sep-Oct;112(5):1003-1016. doi: 10.1080/00275514.2020.1801017. Epub 2020 Sep 18.
The genus (Nectriaceae), originally described as a soil-borne fungus, has been associated with postharvest diseases, especially of tropical fruits. Taxonomic studies using both morphological and molecular phylogenetic analyses have contributed to recognition of novel species in several countries. However, in Brazil, only three isolates of have been collected from soil samples and roots since the late 1970s. Our study expands the sample range using many isolates obtained from rotting fruits of tropical plant species in different states of Brazil. Polyphasic taxonomy was assessed with phylogenetic analyses of DNA sequences from four nuclear loci, morphological comparisons, and pathogenicity tests. As a result, three known species (, and ) were identified from new hosts and locations in Brazil. In addition, three new species are described-, and . A key to all species worldwide is provided. Although species of have not been considered to be important plant pathogens, this study shows they may cause postharvest fruit rot in tropical fruits and therefore have an impact in communities that depend economically on the harvest and sale of these fruits.
（属于肉座菌科），最初被描述为一种土壤传播的真菌，与采后疾病有关，尤其是热带水果的采后疾病。使用形态学和分子系统发育分析的分类学研究有助于在几个国家识别新的物种。然而，在巴西，自 20 世纪 70 年代末以来，仅从土壤样本和根部收集到三种的分离株。本研究使用从巴西不同地区热带植物腐烂果实中获得的许多分离株扩展了样本范围。通过对来自四个核基因座的 DNA 序列的系统发育分析、形态比较和致病性测试，对多相分类进行了评估。结果，从巴西的新宿主和新地点鉴定出了三个已知种（、和）。此外，还描述了三个新种，即-、-和-。提供了一个全球所有物种的关键。尽管 种被认为不是重要的植物病原体，但本研究表明它们可能导致热带水果的采后果实腐烂，因此对依赖这些水果的收获和销售的社区有影响。
