Gene-ecological studies of critically isolated fern Pteris dentata Forssk.: genetic diversity, environmental adaptation, and future distribution modeling (SDM).

IF 2.8 4区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY
Masoud Sheidai, Maedeh Alaeifar, Fahimeh Koohdar, Raheleh Tabaripour
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引用次数: 0

Abstract

Background: Understanding the ecological and genetic characteristics of narrowly distributed species like Pteris dentata is crucial for effective conservation planning. P. dentata, a narrowly distributed fern species that prefers moist, shaded environments, is threatened by habitat degradation associated with urban expansion, climate change, and invasive species-highlighting the urgent need for its conservation.

Methods and results: This study investigated genetic diversity, landscape genetics, adaptive potential, and the landscape adaptive index in two northern Iranian populations of P. dentata. Despite overall low genetic diversity, the populations exhibited significant differentiation in genetic composition and morpho-anatomical traits, primarily shaped by spatial factors. Patterns of isolation by distance (IBD) and isolation by environment (IBE) were both detected. Variation in adaptive potential and the landscape adaptive index indicated population-specific responses to environmental and climatic stressors. Advanced modeling techniques, including Structural Equation Modeling (SEM) and Random Forest (RF), revealed complex relationships among environmental, climatic, edaphic, and genetic variables influencing adaptation.

Conclusions: Species distribution modeling predicts a substantial decline in suitable habitat for P. dentata in Iran by 2050, driven by climate change-emphasizing the need for proactive conservation strategies.

临界分离蕨类植物齿蕨的基因生态学研究。遗传多样性、环境适应和未来分布模型(SDM)。
背景:了解齿翼蝶等狭窄分布物种的生态和遗传特征对有效的保护规划至关重要。齿形蕨是一种分布狭窄的蕨类植物,喜欢潮湿、阴凉的环境,受到城市扩张、气候变化和物种入侵等相关的栖息地退化的威胁,迫切需要保护。方法与结果:研究了伊朗北部两个居群齿形桫椤(P. dentata)的遗传多样性、景观遗传学、适应潜力和景观适应指数。尽管总体遗传多样性较低,但居群在遗传组成和形态解剖特征上表现出显著的差异,主要受空间因素的影响。检测了距离分离(IBD)和环境分离(IBE)的模式。适应潜力和景观适应指数的变化反映了种群对环境和气候压力的特定响应。包括结构方程模型(SEM)和随机森林(RF)在内的先进建模技术揭示了影响适应的环境、气候、地理和遗传变量之间的复杂关系。结论:物种分布模型预测,在气候变化的驱动下,到2050年,伊朗齿形桫椤的适宜栖息地将大幅减少,这强调了采取积极保护策略的必要性。
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来源期刊
Molecular Biology Reports
Molecular Biology Reports 生物-生化与分子生物学
CiteScore
5.00
自引率
0.00%
发文量
1048
审稿时长
5.6 months
期刊介绍: Molecular Biology Reports publishes original research papers and review articles that demonstrate novel molecular and cellular findings in both eukaryotes (animals, plants, algae, funghi) and prokaryotes (bacteria and archaea).The journal publishes results of both fundamental and translational research as well as new techniques that advance experimental progress in the field and presents original research papers, short communications and (mini-) reviews.
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