论文名称:

Phylogenetic analysis of Rhizoclonium (Cladophoraceae, Cladophorales), and the description of Rhizoclonium subtile sp. nov. from China

作者: Zhao, Zhi-Juan; Zhu, Huan; Liu, Guo-Xiang; Hu, Zheng-Yu
摘要:

The genus Rhizoclonium (Cladophoraceae, Cladophorales) accommodates uniserial, unbranched filamentous algae, closely related to Cladophora and Chaetomorpha. Its taxonomy has been problematic for a long time due to the lack of diagnostic morphological characters. To clarify the species diversity and taxonomic relationships of this genus, we collected and analyzed thirteen freshwater Rhizoclonium specimens from China. The morphological traits of these specimens were observed and described in detail. Three nuclear gene markers small subunit ribosomal DNA (SSU), large subunit ribosomal DNA (LSU) and internal transcribed spacer 2 (ITS2) sequences were analyzed to elucidate their phylogenetic relationships. The results revealed that there were at least fifteen molecular species assignable to Rhizoclonium and our thirteen specimens were distributed in four clades. On the basis of morphological and molecular evidence we propose the new species, R. subtile sp. nov.

卷: 383
期: 2
页码: 147
出版时间: 2018
刊物名称: PHYTOTAXA
全文链接: http://dx.doi.org/10.11646/phytotaxa.383.2.2