A phylogenetic study of Micarea melaeniza and similar-looking species (Pilocarpaceae) unveils hidden diversity and clarifies species boundaries and reproduction modes

被引：1

作者：

Kantelinen, Annina ^{[1
]}

Svensson, Mans ^{[2
]}

Malicek, Jiri ^{[3
]}

Vondrak, Jan ^{[3
,4
]}

Thor, Goran ^{[5
]}

Palice, Zdenek ^{[3
]}

Svoboda, Stanislav ^{[3
]}

Myllys, Leena ^{[1
]}

机构：

[1] Univ Helsinki, Finnish Museum Nat Hist, Bot & Mycol Unit, POB 7, FI-00014 Helsinki, Finland

[2] Uppsala Univ, Museum Evolut, Norbyvagen 16, SE-75236 Uppsala, Sweden

[3] Czech Acad Sci, Inst Bot, Zamek 1, Preihonice 25243, Czech Republic

[4] Univ South Bohemia, Fac Sci, Dept Bot, CZ-37005 Ceske Budejovice, Czech Republic

[5] Swedish Univ Agr Sci, Dept Ecol, POB 7044, SE-750 07 Uppsala, Sweden

来源：

MYCOKEYS | 2024年 / 106期

关键词：

Biodiversity; DNA-barcoding; lichenized ascomycete; new species; overlooked taxa; reproduction mode; PRASINA GROUP; NATIONAL-PARK; PRIMERS; AMPLIFICATION; ASCOMYCOTA; LICHENS; GENUS; RDNA; DNA;

D O I：

10.3897/mycokeys.106.123484

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Micarea (Ascomycota, Pilocarpaceae) is a large cosmopolitan genus of crustose lichens. We investigated molecular systematics and taxonomy of the poorly known Micarea melaeniza group focussing on M. melaeniza , M. nigella and M. osloensis . A total of 54 new sequences were generated and using Bayesian and maximum likelihood analysis of two markers (nuITS and mtSSU), we discovered two previously unrecognized phylo- genetic lineages, one of which is described here as Micarea eurasiatica Kantelinen & G. Thor, sp. nov. , morphologically characterized by pycnidia that are sessile to emergent, cy- lindrically shaped, with greenish-black K+ olive green, wall pigmentation and containing large mesoconidia up to 6 mu m in length. The species is known from Japan and Finland. In addition, we show that the reproduction biology of M. osloensis has been poorly under- stood and that the species often occurs as an anamorph with stipitate pycnidia. We pres- ent a species synopsis and notes on pigments. Our research supports previous results of asexuality being an important reproductive strategy of species growing on dead wood.

引用

页码：327 / 354

页数：28