DOI: 10.1016/j.ympev.2019.106664
论文题名: The late blooming amphipods: Global change promoted post-Jurassic ecological radiation despite Palaeozoic origin
作者: Copilaş-Ciocianu D. ; Borko Š. ; Fišer C.
刊名: Molecular Phylogenetics and Evolution
ISSN: 10557903
出版年: 2020
卷: 143 语种: 英语
英文关键词: Amphipoda
; Cenozoic
; Climatic cooling
; Ecological radiation
; Molecular phylogeny
; Tectonic reconfiguration
英文摘要: The ecological radiation of amphipods is striking among crustaceans. Despite high diversity, global distribution and key roles in all aquatic environments, little is known about their ecological transitions, evolutionary timescale and phylogenetic relationships. It has previously been proposed that the amphipod ecological diversification began in the Late Palaeozoic. By contrast, due to their affinity for cold/oxygenated water and absence of pre-Cenozoic fossils, we hypothesized that the ecological divergence of amphipods arose throughout the cool Late Mesozoic/Cenozoic. We tested our hypothesis by inferring a large-scale, time-calibrated, multilocus phylogeny, and reconstructed evolutionary patterns for major ecological traits. Although our results reveal a Late Palaeozoic amphipod origin, diversification and ecological divergence ensued only in the Late Mesozoic, overcoming a protracted stasis in marine littoral habitats. Multiple independent post-Jurassic radiations took place in deep-sea, freshwater, terrestrial, pelagic and symbiotic environments, usually postdating deep-sea faunal extinctions, and corresponding with significant climatic cooling, tectonic reconfiguration, continental flooding, and increased oceanic oxygenation. We conclude that the profound Late Mesozoic global changes triggered a tipping point in amphipod evolution by unlocking ecological opportunities that promoted radiation into many new niches. Our study also provides a solid, time-calibrated, evolutionary framework to accelerate research on this overlooked, yet globally important taxon. © 2019 Elsevier Inc. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159400
Appears in Collections: 气候变化与战略
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作者单位: Laboratory of Evolutionary Ecology of Hydrobionts, Nature Research Centre, Vilnius, Lithuania; SubBio Lab, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
Recommended Citation:
Copilaş-Ciocianu D.,Borko Š.,Fišer C.. The late blooming amphipods: Global change promoted post-Jurassic ecological radiation despite Palaeozoic origin[J]. Molecular Phylogenetics and Evolution,2020-01-01,143