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7 results for “Disjunct biogeography”
Fig. 2 in Biogeography, phylogenetic relationships and morphological analyses of the South American genus Mutisia L.f. (Asteraceae) shows early connections of two disjunct biodiversity hotspots
Fig. 2 Morphological diversity in Mutisia species pertaining to different sections: a M. orbignyana (section Isantha); b, c M. ledifolia (section Fruticosa); d M. coccinea (section Mutisia); e M. campanulata (section Mutisia); f M. clematis (section Mutisia); g M. decurrens (section Guariruma); h M. hamata (section Guariruma); i M. ilicifolia (section Ovata); and j M. grandiflora (section Mutisia). Photos by Henry Gonzales (a), Andrés Moreira-Muñoz (b, c, g, h, i); Marcelo Monge (d), Gustavo Shimizu (e), Mauricio Diazgranados (f), Ricardo Jaramillo (j)
Fig. 1 in Biogeography, phylogenetic relationships and morphological analyses of the South American genus Mutisia L.f. (Asteraceae) shows early connections of two disjunct biodiversity hotspots
Fig. 1 Collection localities of Mutisia species extracted from GBIF, Chilean herbaria (SGO and CONC) and team collections, plotted upon four biodiversity hotspots: (1) Tropical Andes (TA), (2) Chilean Winter Rainfall and Valdivian Forests (CWR), (3) Atlantic Forest (AF) and (4) Cerrado (CE). Disjunct distribution of Andean and AF species is marked with a dotted line
Fig. 3 in Biogeography, phylogenetic relationships and morphological analyses of the South American genus Mutisia L.f. (Asteraceae) shows early connections of two disjunct biodiversity hotspots
Fig. 3 Diversity patterns of Mutisia. a Species richness map, showing the Andes of Central Chile as the richest area. b Corrected weighted endemism map, with the Andes of Ecuador standing out
Fig. 6 in Biogeography, phylogenetic relationships and morphological analyses of the South American genus Mutisia L.f. (Asteraceae) shows early connections of two disjunct biodiversity hotspots
Fig. 6 Stochastic trait mapping of Mutisia and Pachylaena. a Habit. b Leaf shape. c Leaf apex. Trait values are indicated to the left and right of the taxon names. Pie charts at nodes represent the probabilities of
Nuclear and plastid phylogenomic analyses provide insights into the reticulate evolution, species delimitation and biogeography of the Sino-Japanese disjunctive Diabelia (Caprifoliaceae)
<p>Understanding biological diversity and the mechanisms of the Sino-Japanese disjunctions are major challenge<span>s in</span><span> </span><span>eastern Asia biogeography</span><span>. </span><span>The Sino-Japanese flora has been broadly studied as an ideal model</span><span> for plant phylogeography</span><span>. </span><span>Diabelia</span><span> (Caprifoliaceae) is an</span><span> East Asian genus, </span><span>with a disjunctive distribution across </span><span>the </span><span>Sino-</span><span>J</span><span>apanese region.</span><span> However, </span><span>relationships within </span><span>Diabelia</span><span> remain elusive. In this study, </span><span>we reconstructed</span><span> the </span><span>phylogeny of </span><span>Diabelia</span><span> </span><span>and </span><span>inferred historical biogeography and evolutionary patterns</span><span> based on nuclear and </span><span>plastid</span><span> sequence</span><span>s</span><span> from </span><span>target enrichment</span><span> and genome skimming approaches, respectively</span><span>.</span><span> We found that the </span><span>main </span><span>clades</span><span> within </span><span>Diabelia</span><span> were</span><span> </span><span>discordant between nuclear and plastid trees</span><span>. </span><span>Both </span><span>nuclear and plastid </span><span>phylogenetic analys</span><span>e</span><span>s </span><span>supported</span><span> five main clades: </span><span>D. serrata</span><span>, </span><span>D. </span><span>tetrasepala</span><span>, </span><span>D. </span><span>sanguinea</span><span>, </span><span>D. </span><span>spathulata</span><span> </span><span>var. </span><span>stenophylla</span><span> and </span><span>D. </span><span>spathulata</span><span> </span><span>var. </span><span>spathulata</span><span>. Species network analyses revealed that </span><span>Diabelia</span><span> </span><span>tetrasepala</span><span> </span><span>is likely the </span><span>result </span><span>of a</span><span> hybridization event</span><span>. Divergence time estimation</span><span> and </span><span>ancestral area reconstructions</span><span> showed that </span><span>Diabelia</span><span> originated in</span><span> </span><span>Japan during </span><span>the </span><span>early Miocene, with subsequent vicariance </span><span>and dispersal </span><span>events between Japan and Korea, and between Japan and China</span><span>.</span><span> </span><span>Overall</span><span>, </span><span>our results support the division of</span><span> </span><span>Diabelia</span><span> into five main clades and </span><span>the recognition of five species in the genus.</span><span> </span><span>T</span><span>his research </span><span>provides new insights in the species delimitation and</span><span> </span><span>speciation processes of</span><span> </span><span>taxonomically complex lineages such as </span><span>Diabelia</span><span>.</span></p>
Nuclear and plastid phylogenomic analyses provide insights into the reticulate evolution, species delimitation and biogeography of the Sino-Japanese disjunctive Diabelia (Caprifoliaceae)
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Fig. 5 in Biogeography, phylogenetic relationships and morphological analyses of the South American genus Mutisia L.f. (Asteraceae) shows early connections of two disjunct biodiversity hotspots
Fig. 5 Divergence times and ancestral range estimates of Mutisia and Pachylaena. Major clades and the current distribution of species in areas A to E are indicated right and left of the taxon names, respectively. Node bars are 95% HPD intervals of divergences times from the posterior distribution of the BEAST analysis. Pie charts at
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