論文 - 詳細
| RRC ID | 72719 |
|---|---|
| 著者 | Testo WL, de Gasper AL, Molino S, Galán JMGY, Salino A, Dittrich VAO, Sessa EB. |
| タイトル | Deep vicariance and frequent transoceanic dispersal shape the evolutionary history of a globally distributed fern family. |
| ジャーナル | Am J Bot |
| Abstract |
PREMISE:Historical biogeography of ferns is typically expected to be dominated by long-distance dispersal, due to their minuscule spores. However, few studies have inferred the historical biogeography of a large and widely distributed group of ferns to test this hypothesis. Our aims are to determine the extent to which long-distance dispersal vs. vicariance have shaped the history of the fern family Blechnaceae, to explore ecological correlates of dispersal and diversification, and to determine whether these patterns differ between the northern and southern hemispheres. METHODS:We used sequence data for three chloroplast loci to infer a time-calibrated phylogeny for 154 out of 265 species of Blechnaceae, including representatives of all genera in the family. This tree was used to conduct ancestral range reconstruction and stochastic character mapping, estimate diversification rates, and identify ecological correlates of diversification. KEY RESULTS:Blechnaceae originated in Eurasia and began diversifying in the late Cretaceous. A lineage comprising most extant diversity diversified principally in the austral Pacific region around the Paleocene-Eocene Thermal Maximum. Land connections that existed near the poles during periods of warm climates likely facilitated migration of several lineages, with subsequent climate-mediated vicariance shaping current distributions. Long-distance dispersal is frequent and asymmetrical, with New Zealand/Pacific Islands, Australia, and tropical America being major source areas. CONCLUSIONS:Ancient vicariance and extensive long-distance dispersal have shaped the history of Blechnaceae in both the northern and southern hemispheres. The exceptional diversity in austral regions appears to reflect rapid speciation in these areas; mechanisms underlying this evolutionary success remain uncertain. This article is protected by copyright. All rights reserved. |
| 巻・号 | 109(10) |
| ページ | 1579-1595 |
| 公開日 | 2022-10-1 |
| DOI | 10.1002/ajb2.16062 |
| PMID | 36063431 |
| MeSH | Australia Biological Evolution Ferns* / genetics Phylogeny Phylogeography |
| IF | 3.038 |
| リソース情報 | |
| GBIF | Fern (Pteridophyta) specimens of Toyama Science Museum Plant specimens of Ishikawa Museum of Natural History Plant specimens of Toyota City Nature Sanctuary Plant specimens of Otaru Museum Plant specimens of Komatsu City Museum Vascular Plant Specimens of Yamagata Prefectural Museum Vascular plant specimens of Akita Prefectural Museum Herbarium, University Archives and Collections, Fukushima University, Japan (FKSE) Pteridophyta specimens of Iwate Prefectural Museum Ibaraki Nature Museum, Vascular Plants collection Vascular plant specimens of National Museum of Nature and Science (TNS) Plant Specimens of Kurashiki Museum of Natural History Herbarium Specimens of Tokushima Prefectural Museum, Japan Vascular Plants Collection of Sagamihara City Museum Plant specimens in the Museum of Nature and Human Activities, Hyogo Prefecture, Japan Plant specimens deposited in Osaka Museum of Natural History, Japan Vascular Plant Specimens of Kochi Prefectural Makino Botanical Garden Vascular Plant Specimen database of Kanagawa Prefectural Museum of Natural History Gunma Museum of Natural History, Vascular Plant Specimen Vascular plant specimens of Sugadaira Research Station, Mountain Science Center, University of Tsukuba Plant specimens of Parthenon Tama Museum (PTHM) Vascular plant specimens of Nagano Environmental Conservation Research Institute, Nagano Prefecture Vascular plant specimens of Toyama Science Museum |