Committee on Evolutionary Biology, University of Chicago, 1025 E. 57th Street, Chicago, Illinois 60637, U.S.A.
Stud Mycol. 2009;64:135-144S4. doi: 10.3114/sim.2009.64.07.
We present a revised phylogeny of lichenised Dothideomyceta (Arthoniomycetes and Dothideomycetes) based on a combined data set of nuclear large subunit (nuLSU) and mitochondrial small subunit (mtSSU) rDNA data. Dothideomyceta is supported as monophyletic with monophyletic classes Arthoniomycetes and Dothideomycetes; the latter, however, lacking support in this study. The phylogeny of lichenised Arthoniomycetes supports the current division into three families: Chrysothrichaceae (Chrysothrix), Arthoniaceae (Arthonia s. l., Cryptothecia, Herpothallon), and Roccellaceae (Chiodecton, Combea, Dendrographa, Dichosporidium, Enterographa, Erythrodecton, Lecanactis, Opegrapha, Roccella, Roccellographa, Schismatomma, Simonyella). The widespread and common Arthonia caesia is strongly supported as a (non-pigmented) member of Chrysothrix. Monoblastiaceae, Strigulaceae, and Trypetheliaceae are recovered as unrelated, monophyletic clades within Dothideomycetes. Also, the genera Arthopyrenia (Arthopyreniaceae) and Cystocoleus and Racodium (Capnodiales) are confirmed as Dothideomycetes but unrelated to each other. Mycomicrothelia is shown to be unrelated to Arthopyrenia s.str., but is supported as a monophyletic clade sister to Trypetheliaceae, which is supported by hamathecium characters. The generic concept in several groups is in need of revision, as indicated by non-monophyly of genera, such as Arthonia, Astrothelium, Cryptothecia, Cryptothelium, Enterographa, Opegrapha, and Trypethelium in our analyses.
我们提出了一个基于核大亚基（nuLSU）和线粒体小亚基（mtSSU）rDNA 数据联合数据集的有壳质层真菌类（节皮菌纲和子囊菌纲）的修订系统发育。有壳质层真菌类被支持为单系，具有单系的节皮菌纲和子囊菌纲；然而，后者在本研究中缺乏支持。有壳质层节皮菌纲的系统发育支持当前分为三个科： Chrysothrichaceae（Chrysothrix）、Arthoniaceae（Arthonia s. l.、Cryptothecia、Herpothallon）和 Roccellaceae（Chiodecton、Combea、Dendrographa、Dichosporidium、Enterographa、Erythrodecton、Lecanactis、Opegrapha、Rocella、Roccellographa、Schismatomma、Simonyella）。广泛分布且常见的 Arthonia caesia 强烈支持为 Chrysothrix 的（非色素）成员。Monoblastiaceae、Strigulaceae 和 Trypetheliaceae 在子囊菌纲中被回收为无关的单系群。此外，Arthopyrenia 属（Arthopyreniaceae）和 Cystocoleus 和 Racodium 属（Capnodiales）被确认为子囊菌纲，但彼此无关。Mycomicrothelia 被证明与 Arthopyrenia s.str. 无关，但与 Trypetheliaceae 具有单系关系，这得到了 Hamathecium 特征的支持。几个群组的属概念需要修订，例如在我们的分析中，Arthonia、Astrothelium、Cryptothecia、Cryptothelium、Enterographa、Opegrapha 和 Trypethelium 等属的非单系性表明了这一点。
