The genus Melanconis (Diaporthales)
The genus Melanconis (Diaporthales)
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DOI：
10.3897/mycokeys.63.49054
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发表时间：
2020-03-02
期刊：
影响因子：
3.3
通讯作者：
Voglmayr, Hermann
中科院分区：
文献类型：
--
作者：
Jaklitsch, Walter M.;Voglmayr, Hermann
本文从系统发育、分类、分布和生态等方面对严格意义上的黑锥属进行了重新评价。利用ITS、LSU、ms204、rpb2、tef1和tub2的序列矩阵，识别了8个物种，并确定了它们的系统发育位置。根据系统发育、形态学和地理学的差异，将边缘黑锥虫（Melanconis marginalis）分为4个亚种。意大利黑锥虫（Melanconis italica）是边缘黑锥虫（Melanconis marginalis）的一个亚种。从桦属（Betula sp.）pacifica为新种。Melanconis alni和M. stilbostoma为选择型，M. alni，M. marginalis和M. stilbostoma是epitypified。所有以Alni保藏的GenBank序列显示实际上代表M. marginalis和M. marginalis属于新描述的M. pacifica。目前，赤杨属和桦木属是黑锥属的唯一寄主属。所有物种和亚种（重新）描述和说明。此外，证实了黑粉菌的新型化。
The genus Melanconis (Melanconidaceae, Diaporthales) in the strict sense is here re-evaluated regarding phylogenetic structure, taxonomy, distribution and ecology. Using a matrix of sequences from ITS, LSU, ms204, rpb2, tef1 and tub2, eight species are recognised and their phylogenetic positions are determined. Based on phylogenetic, morphological and geographical differentiation, Melanconis marginalis is subdivided into four subspecies. Melanconis italica is reduced to a subspecies of Melanconis marginalis. The two species Melanconis larissae from Betula sp. and M. pacifica from Alnus rubra are described as new. Melanconis alni and M. stilbostoma are lectotypified and M. alni, M. marginalis and M. stilbostoma are epitypified. All GenBank sequences deposited as Melanconis alni are shown to actually represent M. marginalis and those as M. marginalis belong to the newly described M. pacifica. Currently, Alnus and Betula are the sole host genera of Melanconis. All species and subspecies are (re-)described and illustrated. In addition, the neotypification of Melanconium pterocaryae is here validated.