論文 - 詳細
| RRC ID | 60843 |
|---|---|
| 著者 | Bellot S, Bayton RP, Couvreur TLP, Dodsworth S, Eiserhardt WL, Guignard MS, Pritchard HW, Roberts L, Toorop PE, Baker WJ. |
| タイトル | On the origin of giant seeds: the macroevolution of the double coconut (Lodoicea maldivica) and its relatives (Borasseae, Arecaceae). |
| ジャーナル | New Phytol |
| Abstract |
Seed size shapes plant evolution and ecosystems, and may be driven by plant size and architecture, dispersers, habitat and insularity. How these factors influence the evolution of giant seeds is unclear, as are the rate of evolution and the biogeographical consequences of giant seeds. We generated DNA and seed size data for the palm tribe Borasseae (Arecaceae) and its relatives, which show a wide diversity in seed size and include the double coconut (Lodoicea maldivica), the largest seed in the world. We inferred their phylogeny, dispersal history and rates of change in seed size, and evaluated the possible influence of plant size, inflorescence branching, habitat and insularity on these changes. Large seeds were involved in 10 oceanic dispersals. Following theoretical predictions, we found that: taller plants with fewer-branched inflorescences produced larger seeds; seed size tended to evolve faster on islands (except Madagascar); and seeds of shade-loving Borasseae tended to be larger. Plant size and inflorescence branching may constrain seed size in Borasseae and their relatives. The possible roles of insularity, habitat and dispersers are difficult to disentangle. Evolutionary contingencies better explain the gigantism of the double coconut than unusually high rates of seed size increase. |
| 巻・号 | 228(3) |
| ページ | 1134-1148 |
| 公開日 | 2020-6-16 |
| DOI | 10.1111/nph.16750 |
| PMID | 32544251 |
| PMC | PMC7590125 |
| MeSH | Arecaceae* Cocos Ecosystem Madagascar Seed Dispersal* Seeds / genetics |
| IF | 7.299 |
| 引用数 | 0 |
| リソース情報 | |
| GBIF | Vascular plant specimens of Akita Prefectural Museum Herbarium, University Archives and Collections, Fukushima University, Japan (FKSE) Angiospermatatophytina Collection of Saitama Museum of Natural History 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 Herbarium Specimens of Tokushima Prefectural Museum, Japan Herbarium of Kitakyushu Museum of Natural History and Human 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 Herbarium Specimens of Bonin and Ryukyu Islands Occurrence data of woody plants in the Ginkakuzi-san National Forest Tracheophyta collection of Biodiversity Center of Japan, Ministry of the Environment |