2026-10-12T01:53:41Z https://www.scidb.cn/oai

10.57760/sciencedb.01268 2026-09-11T10:30:29Z

2026-09-11 Residence-time-dependent shifts in plant–soil feedback strategies from mutualism to pathogen regulation in a vigorous invasive plant doi:10.57760/sciencedb.01268 en  Divergence in plant–soil feedbacks (PSF) across invasive plant populations, from recently founded edge populations to long-colonized central populations, may be shaped by residence-time-dependent selection but remains largely unexplored. We conducted a two-phase common garden experiment to assess PSF effects on the invasiveness of Galinsoga quadriradiata and explore microbial mechanisms across the central and edge populations.The edge populations of G. quadriradiata exhibited stronger overall PSF than the central populations. PSF significantly influenced plant growth, resource allocation, leaf functional traits, and life-history strategies, with central populations tending to allocate more resources to aboveground structures to enhance light competition, whereas edge populations exhibited greater belowground resource allocation and expanded their temporal niche by accelerating seed maturation. Crucially, the microbial mechanisms underlying PSF diverged between population types: PSF in the central populations was primarily associated with pathogen-related microbial traits, while PSF in the edge populations was more strongly linked to arbuscular mycorrhizal fungi (AMF). Our findings reveal that invasive plants dynamically adjust their PSF strategies across invasion stages. This population-level differentiation in PSF strategies and their underlying microbial mechanisms represent a key ecological mechanism enabling invasive plants to adapt to different stages of invasion and sustain successful range expansion. invasive plant; plant–soil feedback; population differentiation; invasion front; Galinsoga quadriradiata Jia Wang Wengang Zhang Xiaoqing Li Bo Wang Ziyu Liu Yingying Sun Yuhang Song Jiabin Zou Jinfeng Shi Gang Liu PUBLIC https://creativecommons.org/licenses/by-nc/4.0/ dataset Science Data Bank