RRC ID 82273
著者 Saunders TC, Larridon I, Baker WJ, Barrett RL, Forest F, Françoso E, Maurin O, Rokni S, Roalson EH.
タイトル Tangled webs and spider-flowers: Phylogenomics, biogeography, and seed morphology inform the evolutionary history of Cleomaceae.
ジャーナル Am J Bot
Abstract PREMISE:Cleomaceae is an important model clade for studies of evolutionary processes including genome evolution, floral form diversification, and photosynthetic pathway evolution. Diversification and divergence patterns in Cleomaceae remain tangled as research has been restricted by its worldwide distribution, limited genetic sampling and species coverage, and a lack of definitive fossil calibration points.
METHODS:We used target sequence capture and the Angiosperms353 probe set to perform a phylogenetic study of Cleomaceae. We estimated divergence times and biogeographic analyses to explore the origin and diversification of the family. Seed morphology across extant taxa was documented with multifocal image-stacking techniques and morphological characters were extracted, analyzed, and compared to fossil records.
RESULTS:We recovered a well-supported and resolved phylogenetic tree of Cleomaceae generic relationships that includes 236 (~86%) species. We identified 11 principal clades and confidently placed Cleomella as sister to the rest of the family. Our analyses suggested that Cleomaceae and Brassicaceae diverged ~56 mya, and Cleomaceae began to diversify ~53 mya in the Palearctic and Africa. Multiple transatlantic disjunct distributions were identified. Seeds were imaged from 218 (~80%) species in the family and compared to all known fossil species.
CONCLUSIONS:Our results represent the most comprehensive phylogenetic study of Cleomaceae to date. We identified transatlantic disjunctions and proposed explanations for these patterns, most likely either long-distance dispersals or contractions in latitudinal distributions caused by climate change over geological timescales. We found that seed morphology varied considerably but mostly mirrored generic relationships.
巻・号 111(9)
ページ e16399
公開日 2024-8-29
DOI 10.1002/ajb2.16399
PMID 39206557
MeSH Biological Evolution* Flowers / anatomy & histology Flowers / genetics Fossils / anatomy & histology Phylogeny* Phylogeography* Seeds* / anatomy & histology Seeds* / genetics
IF 3.038
リソース情報
GBIF Spermatophyte collection of Himeji City Science Museum Herbarium Specimens of The Kagoshima University Museum (KAG) Plant specimens of Otaru Museum Plant specimens of Komatsu City Museum Vascular plant specimens of Akita Prefectural Museum Vascular plants database of Atsugi City Museum Herbarium, University Archives and Collections, Fukushima University, Japan (FKSE) Vascular plant specimens of Nagano Environmental Conservation Research Institute, Nagano Prefecture Plant specimens of Oiso Municipal Museum Plant specimens of Toyota City Nature Sanctuary (from non-museum circle) Vascular Plant Collection of Natural History Museum and Institute, Chiba Herbarium Specimens of Museum of Nature and Human Activities, Hyogo Pref., Japan Spermatophyta collection of Museum of Natural and Environmental History, Shizuoka 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 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 Vascular plants collection of Hiratsuka City Museum Plant specimens of Horaiji-san Museum of Natural History Kichi T. collection Vascular Plant Specimens of the RYU Herbarium (Faculty of Science, University of the Ryukyus) Herbarium Specimens of Bonin and Ryukyu Islands Plant specimens of Parthenon Tama Museum (PTHM)