PARK, SEON-JOO and KI-JOONG KIM.* Institute of Biotechnology and Department of Biology, Yeungnam University, Korea. - Sectional relationship Hypericum (Clusiaceae) based on the molecular data.
Sectional relationship of Hypericum (Clusiaceae) based on the
molecular data Seon-Joo Park and Ki-Joong Kim, Institute of
Biotechnology and Department of Biology, Yeungnam University, Korea
Hypericum, a large genus of Clusiaceae, is consists of 30 sections and
450 species. The genus distribute worldwide. Considerable advances
have been made in establishing phylogenetic hypothesis for the genus
Hypericum using morphological data. However, the evolutionary
directions of morphological characters are often limited to
understanding the evolution of the genus. To examine the sectional
phylogeny of Hypericum, we sequenced the ITS regions of nuclear rDNA
and trnL-F and pasA-ycf3 regions of chloroplast genome. The data shows
well-resolved phylogeny for the sectional relationships. The basal
group in the genus is the section Campylosporus that mainly
distributed in Tropical Africa and Mexico. The section Brathys derived
from the section Spachium. The cosmopolitan section Hypericum was
paraphyletic group. The geological isolation clearly has played a
major role in the evolution of this genus.
Key words: Hypericum, molecular data