In situ diversification and adaptive introgression in Taiwanese Scutellaria

IF 3.6 3区 生物学 Q1 PLANT SCIENCES Plant Biology Pub Date : 2025-01-22 DOI:10.1111/plb.13769
P.-W. Sun, J.-T. Chang, M.-X. Luo, C.-T. Chao, F. K. Du, P.-C. Liao
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台湾黄芩的原位多样化与适应性渗进。
岛屿栖息地为研究物种形成提供了独特的机会。最近的研究表明,迁地起源和原地物种形成都有助于岛屿物种多样性。然而,关于岛屿特有植物物种的地方适应性的明确证据需要深入研究,而这方面的研究很少。本研究通过考察适应性渐渗、杂交和局部适应对岛屿物种遗传变异的影响,强调了局部适应在维持物种边界方面的重要性。利用51个核基因的多位点基因组扫描,研究了台湾岛黄芩种群的进化关系,并评价了原地多样化对黄芩种群产生高地域性和遗传多样性的作用。通过系统发育网络和基于abba - baba的分析检测到种间基因渗入,表明正在进行或最近的物种形成过程。基于聚结的模拟鉴定了台湾黄芩和谢氏黄芩的杂交物种形成,并证明了两个以上亲本种之间的杂交。基因型-环境关联研究表明,气候的影响,特别是与降水和温度相关的因素,促进了物种之间的适应性遗传分化。此外,还确定了与环境压力有关的适应性渗入,这种渗入可能促进了新岛屿栖息地的殖民化。本研究阐明了杂交、渐渗和适应如何塑造了这种岛屿特有植物物种复合体的进化历史和分化,并揭示了半孤立岛屿上物种形成的多方面机制。
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来源期刊
Plant Biology
Plant Biology 生物-植物科学
CiteScore
8.20
自引率
2.60%
发文量
109
审稿时长
3 months
期刊介绍: Plant Biology is an international journal of broad scope bringing together the different subdisciplines, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, and mycology. Plant Biology publishes original problem-oriented full-length research papers, short research papers, and review articles. Discussion of hot topics and provocative opinion articles are published under the heading Acute Views. From a multidisciplinary perspective, Plant Biology will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.
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