Department of Microbiology and Plant Pathology, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria 0002, South Africa.
Stud Mycol. 2010;66:15-30. doi: 10.3114/sim.2010.66.02.
Calonectria pauciramosa is a pathogen of numerous plant hosts worldwide. Recent studies have indicated that it included cryptic species, some of which are identified in this study. Isolates from various geographical origins were collected and compared based on morphology, DNA sequence data of the beta-tubulin, histone H3 and translation elongation factor-1alpha regions and mating compatibility. Comparisons of the DNA sequence data and mating compatibility revealed three new species. These included Ca. colombiana sp. nov. from Colombia, Ca. polizzii sp. nov. from Italy and Ca. zuluensis sp. nov. from South Africa, all of which had distinguishing morphological features. Based on DNA sequence data, Ca. brasiliensis is also elevated to species level.
少突拟盘多毛孢是一种世界性的植物病原菌。最近的研究表明，它包含隐种，其中一些在本研究中得到了鉴定。从不同地理来源采集的分离物，并基于形态学、β-微管蛋白、组蛋白 H3 和翻译延伸因子 1α 区域的 DNA 序列数据以及交配相容性进行比较。DNA 序列数据和交配相容性的比较揭示了三个新种。它们包括来自哥伦比亚的 Ca. colombiana sp. nov.、来自意大利的 Ca. polizzii sp. nov. 和来自南非的 Ca. zuluensis sp. nov.，它们都具有明显的形态特征。基于 DNA 序列数据，Ca. brasiliensis 也被提升到种的水平。
