Centre for Research in Fungal Diversity, Department of Ecology & Biodiversity, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, PR China.
Mycologia. 2002 Sep-Oct;94(5):803-13.
The monophyletic status of the genus Massarina was evaluated on the basis of phylogenetic analysis of the partial small subunit gene (SSU), internal transcribed spacers (ITS 1 & 2), and 5.8S gene sequences of the ribosomal DNA. Species of Massarina used in the study clustered into two distinct clades with high bootstrap support in trees generated from maximum parsimony, weighted parsimony, maximum likelihood, and neighbor-joining analyses. The hypothesis that Massarina species belong to a phylogenetically monophyletic group is rejected. Species with narrowly fusiform ascospores form a monophyletic clade with Lophiostoma, a genus highly similar in morphology. The five species currently accepted in Massarina with such spore morphology are here transferred into the genus Lophiostoma. Massarina species with broadly fusiform to ellipsoidal ascospores are retained as Massarina s. str., lectotypified by M. eburnea. Massarina walkeri is presently excluded from both Massarina and Lophiostoma. The transfer of M. papulosa to a new genus Oletheriostrigula is verified.
基于核糖体 DNA 的小亚基基因（SSU）、内部转录间隔区（ITS1 和 ITS2）和 5.8S 基因序列的系统发育分析，评估了 Massarina 属的单系状态。用于研究的 Massarina 种聚集成两个不同的分支，在最大简约法、加权简约法、最大似然法和邻接法生成的树中具有高 bootstrap 支持。Massarina 种属于系统发育单系群的假设被拒绝。形态上与 Lophiostoma 高度相似的狭梭形子囊孢子形成一个单系分支，后者是一个属。目前在 Massarina 中接受的具有这种孢子形态的五个种被转移到 Lophiostoma 属中。具有宽梭形到椭圆形子囊孢子的 Massarina 种被保留为 Massarina s. str.，以 M. eburnea 为模式种。Massarina walkeri 目前既不包括在 Massarina 属也不包括在 Lophiostoma 属中。将 M. papulosa 转移到一个新的 Oletheriostrigula 属得到了验证。
