Wang Xiaobing, Han Qisheng
School of Civil Engineering and Architecture, Xinxiang University, Xinxiang, China.
Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, China.
Front Plant Sci. 2022 Feb 24;13:759801. doi: 10.3389/fpls.2022.759801. eCollection 2022.
A long-standing hypothesis in biogeography predicts that a species' abundance is highest at the center of its geographical range and decreases toward its edges. In this study, we test the of ectomycorrhizal (ECM) fungal communities associated with , an endemic species widely distributed in northwest China. We analyzed the taxonomic richness and the relative abundance of ECM fungi in four main distribution areas, from center to edges. In total, 234 species of ECM fungi were detected, and of these, 137 species were shared among all four sites. , , , and were the dominant genera. ECM fungal richness and biodiversity were highest at the central and lower at peripheral sites. Our results indicated that ECM fungal species richness was consistent with the , while the relative abundances of individual fungal genera shifted inconsistently across the plant's range.
生物地理学中一个长期存在的假说是，一个物种的丰度在其地理分布范围的中心最高，并向边缘递减。在本研究中，我们测试了与梭梭相关的外生菌根（ECM）真菌群落，梭梭是一种广泛分布于中国西北部的特有物种。我们分析了从中心到边缘的四个主要分布区域中ECM真菌的分类丰富度和相对丰度。总共检测到234种ECM真菌，其中137种在所有四个地点都有。土生空团菌属、硬皮马勃属、红菇属和乳菇属是优势属。ECM真菌丰富度和生物多样性在中心最高，在外围地点较低。我们的结果表明，ECM真菌物种丰富度与[此处原文缺失相关内容]一致，而各个真菌属的相对丰度在植物分布范围内的变化并不一致。
