摘 要: 利用RAPD标记以银耳属的2个种为外类群研究了木耳属8个种的分子系统发育关系。根据UPGMA 构建的树状图结果表明木耳属(Auricularia)和银耳属(Tremella)分别为单一的分类单元。木耳属的8个种被分成3个明显不同的组,第一组包括盾...摘 要: 利用RAPD标记以银耳属的2个种为外类群研究了木耳属8个种的分子系统发育关系。根据UPGMA 构建的树状图结果表明木耳属(Auricularia)和银耳属(Tremella)分别为单一的分类单元。木耳属的8个种被分成3个明显不同的组,第一组包括盾形木耳(A.peltata Lloyd)和角质木耳(A.cornea Spreng.),第二组包括所有供试的黑木耳(A.auricula Underw.),第三组包括皱木耳(A.delicata Henn.)、琥珀木耳(A.fuscosuccinea Farl.)、毛木耳(A.polytricha Sacc.)、大木耳(A.maxima Y. R. Guo)和网膜木耳(A.reticulata L. J. Li)五个形态种。种间发育关系表明角质木耳和毛木耳应是两个不同的种而非同种异名,子实体横切面中髓层的有无并不表明不同种间亲缘关系的远近。展开更多
We present a revised molecular phylogeny of higher Basidiomycota focusing on Lepidostromataceae based on the large subunit(28S)of the nuclear ribosomal rDNA(nuLSU),with additionl data from the translation elongation f...We present a revised molecular phylogeny of higher Basidiomycota focusing on Lepidostromataceae based on the large subunit(28S)of the nuclear ribosomal rDNA(nuLSU),with additionl data from the translation elongation factor 1 alpha 1(TEF1)and the RNA polymerase II second largest subunit(RPB2)genes.Our results suggest that Lepidostromataceae is best recognized in a separate order,Lepidostromatales ordo novum,within subclass Agaricomycetidae.Furthermore,the internal topology of Lepidostromataceae,correlating with thallus features,indicates that three genera,instead of a single genus,should be recognized.We therefore introduce the genera Ertzia genus novum and Sulzbacheromyces genus novum for Lepidostroma akagerae and L.caatingae,respectively.In addition,the new species L.winklerianum spec.nova is described for Mexican material previously identified as L.calocerum.The photobionts of Sulzbacheromyces and Lepidostroma were identified using molecular data of the large subunit of the ribulose 1,5-bisphosphate carboxylase/oxygenase(rbcL)gene,revealing a possibly undescribed genus in Trebouxiophyceae and the first report of lichenization for the genus Bracteacoccus in Chlorophyceae.展开更多
文摘摘 要: 利用RAPD标记以银耳属的2个种为外类群研究了木耳属8个种的分子系统发育关系。根据UPGMA 构建的树状图结果表明木耳属(Auricularia)和银耳属(Tremella)分别为单一的分类单元。木耳属的8个种被分成3个明显不同的组,第一组包括盾形木耳(A.peltata Lloyd)和角质木耳(A.cornea Spreng.),第二组包括所有供试的黑木耳(A.auricula Underw.),第三组包括皱木耳(A.delicata Henn.)、琥珀木耳(A.fuscosuccinea Farl.)、毛木耳(A.polytricha Sacc.)、大木耳(A.maxima Y. R. Guo)和网膜木耳(A.reticulata L. J. Li)五个形态种。种间发育关系表明角质木耳和毛木耳应是两个不同的种而非同种异名,子实体横切面中髓层的有无并不表明不同种间亲缘关系的远近。
基金Funding was provided to BPH through an Explorers Club Diversa Award,a Duke University Graduate International Research Travel Award,an American Bryological&Lichenological Society Student Travel Award,and a Sigma Xi Grant-In-Aid of ResearchPartial financial support for RL was provided by grant DEB 0841405 from the National Science Foundation to George Mason University:"Phylogenetic Diversity of Mycobionts and Photobionts in the Cyanolichen Genus Dictyonema,with Emphasis on the Neotropics and the Galapagos Islands"(PI:J.Lawrey+1 种基金Co-PIs:R.Lücking,P.Gillevet)Molecular sequence work by BM was partially supported by grant DEB 715660 from the National Science Foundation to The Field Museum:"Neotropical Epiphytic Microlichens-An Innovative Inventory of a Highly Diverse yet Little Known Group of Symbiotic Organisms"(PI R.Lücking).
文摘We present a revised molecular phylogeny of higher Basidiomycota focusing on Lepidostromataceae based on the large subunit(28S)of the nuclear ribosomal rDNA(nuLSU),with additionl data from the translation elongation factor 1 alpha 1(TEF1)and the RNA polymerase II second largest subunit(RPB2)genes.Our results suggest that Lepidostromataceae is best recognized in a separate order,Lepidostromatales ordo novum,within subclass Agaricomycetidae.Furthermore,the internal topology of Lepidostromataceae,correlating with thallus features,indicates that three genera,instead of a single genus,should be recognized.We therefore introduce the genera Ertzia genus novum and Sulzbacheromyces genus novum for Lepidostroma akagerae and L.caatingae,respectively.In addition,the new species L.winklerianum spec.nova is described for Mexican material previously identified as L.calocerum.The photobionts of Sulzbacheromyces and Lepidostroma were identified using molecular data of the large subunit of the ribulose 1,5-bisphosphate carboxylase/oxygenase(rbcL)gene,revealing a possibly undescribed genus in Trebouxiophyceae and the first report of lichenization for the genus Bracteacoccus in Chlorophyceae.
