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Phylogeny and biogeography of exacum (gentianaceae): a disjunctive distribution in the Indian ocean basin resulted from long distance dispersal and extensive radiation.
TLDR
The molecular dating analysis demonstrates that the radiation is too recent to be associated with the Gondwanan continental breakup, and Ancestral area reconstruction suggests that Exacum originated in Madagascar, and divergence dating suggests its origin was not before the Eocene.
High variation and strong phylogeographic pattern among cpDNA haplotypes in Taxus wallichiana (Taxaceae) in China and North Vietnam
TLDR
The molecular phylogenetic data, together with the geographic distribution of the haplotypes, suggest the existence of several localized refugia during the last glaciation from which the present‐day distribution may be derived.
Molecular systematics and remodelling of Chirita and associated genera (Gesneriaceae)
TLDR
The polyphyletic genus Chirita is remodelled after an extensive molecular phylogenetic study of species assigned to it and to other associated genera and a general list showing the present accommodation of the species previously described under ChiritA, Chiritopsis, Hemiboeopsis, Primulina and Wentsaiboea is provided.
Geological and ecological factors drive cryptic speciation of yews in a biodiversity hotspot.
TLDR
The high genetic divergence, long-term isolation and ecological differentiation suggest a scenario of cryptic speciation in T. wallichiana associated with geological and climatic changes in the HHM, and challenges the notion of general population 'contraction' during the last glaciation in the region.
A new delineation for Oreocharis incorporating an additional ten genera of Chinese Gesneriaceae
TLDR
Oreocharis provides an excellent example of a major monophyletic group that has experienced a rapid radiation early in its evolution and shows manifold convergences in floral characters, apparently reflecting different pollination strategies, but has little variation in vegetative habit and fruit structure.
DNA barcoding for the discrimination of Eurasian yews (Taxus L., Taxaceae) and the discovery of cryptic species
TLDR
Using the proposed DNA barcode, a technical system can be established to rapidly and reliably identify Taxus species in Eurasia for conservation protection and for monitoring illegal trade.
Diversity of cycloidea -like Genes in Gesneriaceae in Relation to Floral Symmetry
TLDR
Analysis of Gesneriaceae cycloidea suggests that independent duplication and gene loss events have occurred during the evolution of this family after the split from Scrophulariaceae, and suggests that Gcyc may be expressed before primordia initiation in R. myconi, or may have additional functions not directly related to floral symmetry.
Phylogenetic position and generic differentiation of Epithemateae (Gesneriaceae) inferred from plastid DNA sequence data.
TLDR
The systematic position and generic differentiation of the morphologically and geographically outstanding tribe Epithemateae (Gesneriaceae) was analyzed using the rbcL/atpB-spacer and trnL-F intron-Spacer regions of chloroplast DNA and the results are in perfect accordance with the relationships worked out earlier on grounds of architectural and floral characters.
Evolutionary relationships of the New Caledonian heterotrophic conifer, Parasitaxus usta (Podocarpaceae), inferred from chloroplast trnL-F intron/spacer and nuclear rDNA ITS2 sequences
TLDR
The phylogenetic position of Parasitaxus has been inferred from a cladistic analysis of molecular characters from chloroplast and nuclear genomes including all genera of Podocarpaceae, indicating that the plant behaves like a holoparasite.
Species separation of Taxus baccata, T. canadensis, and T. cuspidata (Taxaceae) and origins of their reputed hybrids inferred from RAPD and cpDNA data.
TLDR
Principal coordinates analysis (PCO) and unweighted pair-group method algorithm (UPGMA) analyses of RAPD bands clearly separated the species, indicating that they belong to discrete genetic stocks and supporting their individual species status.
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