Patterns of fungal–algal symbiont association in Usnea aurantiaco-atra reveal the succession of lichen–moss communities in Fildes Peninsula, Antarctica

Polar research

Fang Peng¹  Feng Wang²  Hongyuan Zheng²  Shunan Cao³  Qiming Zhou⁴  Chuanpeng Liu⁵ 

[1] China Center for Type Culture Collection, College of Life Sciences, Wuhan University, Wuhan, ChinaView further author information;College of Environmental Science and Engineering, Tongji University, Shanghai, ChinaView further author information;Key Laboratory for Polar Science, State Ocean Administration, Polar Research Institute of China, Shanghai, Chinahttp://orcid.org/0000-0002-3264-851X;School of Life Science and Technology, Harbin Institute of Technology, Harbin, ChinaCorrespondence;School of Life Science and Technology, Harbin Institute of Technology, Harbin, ChinaView further author information

关键词: Haplotype;    ITS rDNA;    linkage disequilibrium;    mycobiont;    populations;    reproduction;    ITS: internal transcribed spacer;    PCR: polymerase chain reaction;   

DOI  :  10.1080/17518369.2017.1374123

学科分类：自然科学（综合）

来源: Co-Action Publishing

【 摘 要 】

ABSTRACTUsnea aurantiaco-atra is the most widespread flora in Fildes Peninsula. There are two growth types of U. aurantiaco-atra: the erect form on rocks and the prostrate form associated with mosses. Phylogenetic analysis showed that individuals of the two growth forms share genotypes. Moreover, haploid disequilibrium testing indicated no significant genetic difference for the two growth forms when fungal and algal internal transcribed spacer rDNA were treated as two alleles of one lichen individual. The two growth forms of U. aurantiaco-atra appear to reflect different stages of lichen–moss community succession. A mode is proposed for demonstrating the occurrence of this succession.

【 授权许可】

CC BY-NC