caa a22 4500 475806484 CHVBK 20180406123748.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1007/BF00985328 doi (NATIONALLICENCE)springer-10.1007/BF00985328 A phylogenetic analysis of the Illiciaceae based on sequences of internal transcribed spacers (ITS) of nuclear ribosomal DNA [Elektronische Daten] [Gang Hao, Richard Saunders, Mee-Len Chye] Sequences of the internal transcribed spacers (ITS) of nuclear ribosomal DNA were determined for 15 species ofIllicium (Illiciaceae) to examine phylogenetic relationships. The ITS trees show a major dichotomy between the two North American species (I. floridanum andI. parviflorum) and the remaining east Asian species. This suggests that the existing division between two sections (sect.Illicium and sect.Cymbostemon) ofIllicium based on tepal characters in unnatural. The ITS phylogeny shows congruence with palynology: of the species examined, the three species (I. angustisepalum, I. anisatum andI. fargesii) from sect.Illicium that possess trizonocolpate pollen consistently form a clade, although nesting within a clade consisting of the species of sect.Cymbostemon, which generally have trisyncolpate pollen. The low ITS sequence divergence and the close relationship among east Asian species suggest a recent diversification of this group of species or an unusual slowdown of sequence mutations. Springer-Verlag, 2000 Cladistics nationallicence evolution nationallicence Illiciales nationallicence Illicium nationallicence ITS nationallicence star anise nationallicence Hao Gang Department of Ecology & Biodiversity, The University of Hong Kong, Pokfulam Road, Hong Kong, China aut Saunders Richard Department of Ecology & Biodiversity, The University of Hong Kong, Pokfulam Road, Hong Kong, China aut Chye Mee-Len Department of Botany, The University of Hong Kong, Pokfulam Road, Hong Kong, China aut Plant Systematics and Evolution Springer-Verlag 223/1-2(2000-03-01), 81-90 0378-2697 223:1-2<81 2000 223 606 https://doi.org/10.1007/BF00985328 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00985328 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hao Gang Department of Ecology & Biodiversity, The University of Hong Kong, Pokfulam Road, Hong Kong, China aut NATIONALLICENCE 700 1- Saunders Richard Department of Ecology & Biodiversity, The University of Hong Kong, Pokfulam Road, Hong Kong, China aut NATIONALLICENCE 700 1- Chye Mee-Len Department of Botany, The University of Hong Kong, Pokfulam Road, Hong Kong, China aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 223/1-2(2000-03-01), 81-90 0378-2697 223:1-2<81 2000 223 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer