RRC ID 76516
Author Zhou P, Li JH, Liu YZ, Zhu ZW, Luo Y, Xiang XG.
Title Species richness disparity in tropical terrestrial herbaceous floras: Evolutionary insight from Collabieae (Orchidaceae).
Journal Mol Phylogenet Evol
Abstract Species richness is spatially heterogeneous even in the hyperdiverse tropical floras. The main cause of uneven species richness among the four tropical regions are hot debated. To date, higher net diversification rates and/or longer colonization time have been usually proposed to contribute to this pattern. However, there are few studies to clarify the species richness patterns in tropical terrestrial floras. The terrestrial tribe Collabieae (Orchidaceae) unevenly distributes in the tropical regions with a diverse and endemic center in Asia. Twenty-one genera 127 species of Collabieae and 26 DNA regions were used to reconstruct the phylogeny and infer the biogeographical processes. We compared the topologies, diversification rates and niche evolutionary rates of Collabieae and regional lineages on empirical samplings and different simulated samplings fractions respectively. Our results suggested that the Collabieae originated in Asia at the earliest Oligocene, and then independently spread to Africa, Central America, and Oceania since the Miocene via long-distance dispersal. These results based on empirical data and simulated data were similar. BAMM, GeoSSE and niche analyses inferred that the Asian lineages had higher net diversification and niche evolutionary rates than those of Oceanian and African lineages on the empirical and simulated analyses. Precipitation is the most important factor for Collabieae, and the Asian lineage has experienced more stable and humid climate, which may promote the higher net diversification rate. Besides, the longer colonization time may also be associated with the Asian lineages' diversity. These findings provided a better understanding of the regional diversity heterogeneity in tropical terrestrial herbaceous floras.
Volume 186
Pages 107860
Published 2023-6-16
DOI 10.1016/j.ympev.2023.107860
PII S1055-7903(23)00160-4
PMID 37329932
MeSH Asia Biological Evolution Orchidaceae* / genetics Phylogeny Phylogeography Plants
IF 3.496
GBIF Long-term fauna and flora records of the experimental forests of the Forest Research Station of Hokkaido University, Japan Plant specimens of Toyota City Nature Sanctuary Plant specimens of Tochigi Prefectural Museum Plant specimens of Nasunogahara Museum Plant specimens of Otaru Museum Plant specimens of Komatsu City Museum Plant specimens of Horaiji-san Museum of Natural History Toji K. collection The 6-7th National Survey on the Natural Environment: Vegetation Survey Vascular Plant Specimens of Yamagata Prefectural Museum Plant Specimens collections of the Kyushu University Museum Vascular plant specimens of Akita Prefectural Museum Vascular plants database of Atsugi City Museum Herbarium, University Archives and Collections, Fukushima University, Japan (FKSE) Angiospermatatophytina Collection of Saitama Museum of Natural History Vascular plant specimens of Iida City Museum Plant specimens of Oiso Municipal Museum Herbarium of Hokkaido University Museum (SAPS) 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 Kitami Region Museum of Science History and Art(KIRM) Vascular plant specimens of National Museum of Nature and Science (TNS) Plant Specimens of Kurashiki Museum of Natural History Herbarium of Kitakyushu Museum of Natural History and Human History Plant Specimens of Lake Biwa Museum Spermatophyta specimens of Iwate Prefectural Museum 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 Plant Specimens of The Shimane Nature Museum of Mt. Sanbe Vascular Plant Specimen database of Kanagawa Prefectural Museum of Natural History Gunma Museum of Natural History, Vascular Plant Specimen Vascular plants collection of Hiratsuka City Museum Plant specimens of Kushiro City Museum Monitoring records of plant species in the Hakone region of Fuji-Hakone-Izu National Park, Japan, 2001-2010 Plant specimens of Horaiji-san Museum of Natural History Kichi T. collection Spermatophytes collection of Okinawa Prefectural Museum & Art Museum Plant specimens of Mie Prefectural Museum Herbarium Specimens of Bonin and Ryukyu Islands Herbarium of Shinshu University Plant specimens of Parthenon Tama Museum (PTHM) Plant Observation Records of Japan Tracheophyta collection of Biodiversity Center of Japan, Ministry of the Environment Vascular plant specimens of The Shirakami Research Center for Environmental Sciences, Hirosaki University Vascular plant specimens of Aomori City Forestry Museum Asahikawa Educational College herbarium Plant specimens of the Museum of Yamagata University Plant specimens of Toyota City Nature Sanctuary (from non-museum circle) Vascular plant specimens of Toyama Science Museum