Department of Systematic Botany, Uppsala University, Norbyvägen 18D, SE 752 36 Uppsala, Sweden.
Mycologia. 2010 May-Jun;102(3):588-95. doi: 10.3852/09-107.
In sampling soils to survey dictyostelid cellular slime molds in Alaska we encountered two groups of isolates that have morphologies that differ from any previously described species within their group. We sequenced the nuclear small subunit ribosomal RNA gene (SSU rDNA) of selected isolates from the two groups and found sequences from both groups to be distinct from all previously described dictyostelid sequences. Phylogenetic analyses place one novel species in dictyostelid Group 2 and the other in Group 4 (Schaap et al. 2006). In this paper we formally describe as new these two species of cellular slime molds, Dictyostelium ammophilum sp. nov. and Dictyostelium boreale sp. nov., based on the combination of morphological and molecular characters.
在对阿拉斯加的粘菌进行采样调查时，我们遇到了两组形态与该组内任何已描述物种都不同的分离物。我们对这两组中选定的分离物的核小亚基核糖体 RNA 基因（SSU rDNA）进行了测序，发现两组的序列都与所有已描述的粘菌序列明显不同。系统发育分析将一个新种归入粘菌第 2 组，另一个归入第 4 组（Schaap 等人，2006 年）。在本文中，我们根据形态和分子特征，正式将这两种粘菌描述为新种，即嗜氨粘菌（Dictyostelium ammophilum sp. nov.）和北方粘菌（Dictyostelium boreale sp. nov.）。
