Oh Seung-Yoon, Woo Jung-Jae, Hur Jae-Seoun
Department of Biology and Chemistry, Changwon National University, Changwon, South Korea.
Gyeongnam Bio and Anti-aging Core Facility, Changwon National University, Changwon, South Korea.
Mycobiology. 2025 Jun 19;53(4):412-420. doi: 10.1080/12298093.2025.2518793. eCollection 2025.
, such as a, are increasingly recognized as potential indicators of subtropical ecosystem dynamics due to their sensitivity to climatic conditions, with climate change likely to expand their distribution in the South Korea. Despite their ecological importance, studies on the distribution and genetic structure of in South Korea remain limited. This study aims to examine this knowledge gap by analyzing the ecological preferences, genetic diversity, and distribution change of under future climate scenarios. Field surveys were conducted across 96 sites, including 66 sites on Jeju Island and 30 islands, revealing a highly restricted distribution with the species present at only 12 sites in four islands. Analysis of bioclimate variables indicated that warmer temperatures and lower temperature seasonality significantly influence the distribution of . Population genetic analyses, based on ITS sequences from 45 samples, identified 17 haplotypes and revealed moderate regional differentiation, with significant isolation-by-distance but no isolation-by-environment effect. Species distribution modeling predicts potential range expansion under future climate scenarios. These findings highlight the ecological sensitivity of to temperature gradients and its potential as a bioindicator for subtropical ecosystem shifts, emphasizing the need to conserve genetically diverse populations to enhance resilience against climate change.
诸如a这样的物种，由于其对气候条件敏感，越来越被视为亚热带生态系统动态变化的潜在指标，气候变化可能会扩大它们在韩国的分布范围。尽管它们具有生态重要性，但关于韩国此类物种的分布和遗传结构的研究仍然有限。本研究旨在通过分析未来气候情景下该物种的生态偏好、遗传多样性和分布变化来填补这一知识空白。在96个地点进行了实地调查，包括济州岛的66个地点和30个岛屿，结果显示其分布极为受限，该物种仅在四个岛屿的12个地点出现。生物气候变量分析表明，温度升高和较低的温度季节性对该物种的分布有显著影响。基于45个样本的ITS序列进行的种群遗传分析，鉴定出17个单倍型，并揭示出中等程度的区域分化，存在显著的距离隔离但无环境隔离效应。物种分布模型预测了未来气候情景下潜在的分布范围扩张。这些发现突出了该物种对温度梯度的生态敏感性及其作为亚热带生态系统变化生物指标的潜力，强调需要保护遗传多样的种群以增强应对气候变化的恢复力。
