Rapid establishment of species barriers in plants compared with that in animals

• 成果类型: Article
• 署名作者: Monnet, Francois; Postel, Zoe; Touzet, Pascal; Fraisse, Christelle; van de Peer, Yves; Vekemans, Xavier; Roux, Camille
• 署名单位: Centre National de la Recherche Scientifique (CNRS); CNRS - Institute of Ecology & Environment (INEE); Universite de Lille; Ghent University; Ghent University; Flanders Institute for Biotechnology (VIB); University of Pretoria; Nanjing Agricultural University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8463
• DOI: 10.1126/science.adl2356
• 发表日期: 2025-09-11
• 页码: 1147-1150
• 关键词: gene flow; hybrid incompatibility; speciation; selection; divergence; EVOLUTION; introgression; pollination; radiations; diversity

摘要

Speciation, the process by which new reproductively isolated species emerge from ancestral populations, results from the gradual accumulation of barriers to gene flow within genomes. To date, the notion that interspecific genetic exchange (introgression) occurs more frequently between plant species than animals has gained a strong footing in scientific discourse. By examining the dynamics of gene flow across a continuum of divergence in both kingdoms, we observed the opposite relationship: Plants experience less introgression than animals at the same level of genetic divergence, suggesting that species barriers are established more rapidly in plants. This pattern raises questions about which differences in microevolutionary processes between plants and animals influence the dynamics of reproductive isolation establishment at the macroevolutionary scale.