Uncovering Hidden Lineages in Korean Foliicolous Lichens (Strigulaceae, Strigulales): Discovery of a New Cryptic Genus and Species

Foliicolous or leaf-dwelling lichens are mostly found in (sub-)tropical rainforests; due to their sensibility to environmental changes, they may serve as biological indicators for rainforest ecosystems. In Korea, the northward shift of subtropical conditions due to global climate change has emphasiz...

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Main Authors: Jung-Jae Woo, Robert Lücking, Seung-Yoon Oh, Yong-Chull Jeun, Jae-Seoun Hur
Format: Article
Language:English
Published: Taylor & Francis Group 2025-07-01
Series:Mycobiology
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Online Access:https://www.tandfonline.com/doi/10.1080/12298093.2025.2530843
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author Jung-Jae Woo
Robert Lücking
Seung-Yoon Oh
Yong-Chull Jeun
Jae-Seoun Hur
author_facet Jung-Jae Woo
Robert Lücking
Seung-Yoon Oh
Yong-Chull Jeun
Jae-Seoun Hur
author_sort Jung-Jae Woo
collection DOAJ
description Foliicolous or leaf-dwelling lichens are mostly found in (sub-)tropical rainforests; due to their sensibility to environmental changes, they may serve as biological indicators for rainforest ecosystems. In Korea, the northward shift of subtropical conditions due to global climate change has emphasized the importance of understanding foliicolous lichen diversity and distribution, as they are now increasingly found in these latitudes. This study revises the taxonomy and distribution of foliicolous species in the family Strigulaceae in Korea through ITS-based identification and multigenetic analyses using four additional genetic markers (SSU, LSU, TEF1-α, and RPB2). The results support Racoplaca pelta sp. nov. and Reticula ambigua gen. nov. et sp. nov. as distinct phylogenetic lineages. Newly obtained ITS sequences confirmed that previously misidentified specimens of Strigula subelegans (KoLRI016349 and KoLRI016333) and Racoplaca melanobapha (KoLRI016334) correspond to S. multiformis and R. pelta, respectively. In addition, the distribution of Strigulaceae, once known only from Jeju Island within Korea, was found to extend to four additional southern islands: An, Ga-geo, Geo-mun, and Gwan-mae.
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spelling doaj-art-c9cfc2612bdd49f0b0f1630d8bc7e7f02025-07-30T03:45:16ZengTaylor & Francis GroupMycobiology1229-80932092-93232025-07-0153455657110.1080/12298093.2025.2530843Uncovering Hidden Lineages in Korean Foliicolous Lichens (Strigulaceae, Strigulales): Discovery of a New Cryptic Genus and SpeciesJung-Jae Woo0Robert Lücking1Seung-Yoon Oh2Yong-Chull Jeun3Jae-Seoun Hur4Korean Lichen Research Institute, Sunchon National University, Suncheon, KoreaBotanischer Garten und Botanisches Museum Berlin, Freie Universität Berlin, Berlin, GermanyDepartment of Biology and Chemistry, Changwon National University, Changwon, South KoreaCollege of Applied Life Science, Major of Plant Resources and Environment, Jeju National University, Jeju, KoreaKorean Lichen Research Institute, Sunchon National University, Suncheon, KoreaFoliicolous or leaf-dwelling lichens are mostly found in (sub-)tropical rainforests; due to their sensibility to environmental changes, they may serve as biological indicators for rainforest ecosystems. In Korea, the northward shift of subtropical conditions due to global climate change has emphasized the importance of understanding foliicolous lichen diversity and distribution, as they are now increasingly found in these latitudes. This study revises the taxonomy and distribution of foliicolous species in the family Strigulaceae in Korea through ITS-based identification and multigenetic analyses using four additional genetic markers (SSU, LSU, TEF1-α, and RPB2). The results support Racoplaca pelta sp. nov. and Reticula ambigua gen. nov. et sp. nov. as distinct phylogenetic lineages. Newly obtained ITS sequences confirmed that previously misidentified specimens of Strigula subelegans (KoLRI016349 and KoLRI016333) and Racoplaca melanobapha (KoLRI016334) correspond to S. multiformis and R. pelta, respectively. In addition, the distribution of Strigulaceae, once known only from Jeju Island within Korea, was found to extend to four additional southern islands: An, Ga-geo, Geo-mun, and Gwan-mae.https://www.tandfonline.com/doi/10.1080/12298093.2025.2530843Foliicolous lichensstrigulaceaecryptic diversitymultigene analysesclimate change
spellingShingle Jung-Jae Woo
Robert Lücking
Seung-Yoon Oh
Yong-Chull Jeun
Jae-Seoun Hur
Uncovering Hidden Lineages in Korean Foliicolous Lichens (Strigulaceae, Strigulales): Discovery of a New Cryptic Genus and Species
Mycobiology
Foliicolous lichens
strigulaceae
cryptic diversity
multigene analyses
climate change
title Uncovering Hidden Lineages in Korean Foliicolous Lichens (Strigulaceae, Strigulales): Discovery of a New Cryptic Genus and Species
title_full Uncovering Hidden Lineages in Korean Foliicolous Lichens (Strigulaceae, Strigulales): Discovery of a New Cryptic Genus and Species
title_fullStr Uncovering Hidden Lineages in Korean Foliicolous Lichens (Strigulaceae, Strigulales): Discovery of a New Cryptic Genus and Species
title_full_unstemmed Uncovering Hidden Lineages in Korean Foliicolous Lichens (Strigulaceae, Strigulales): Discovery of a New Cryptic Genus and Species
title_short Uncovering Hidden Lineages in Korean Foliicolous Lichens (Strigulaceae, Strigulales): Discovery of a New Cryptic Genus and Species
title_sort uncovering hidden lineages in korean foliicolous lichens strigulaceae strigulales discovery of a new cryptic genus and species
topic Foliicolous lichens
strigulaceae
cryptic diversity
multigene analyses
climate change
url https://www.tandfonline.com/doi/10.1080/12298093.2025.2530843
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