Phylogeographic analysis of in subtropical China provides insights into the origin of cultivated monk fruit and conservation of genetic resources.

, an economically important plant species with high medicinal value, is endemic to subtropical China. To determine the population structure and origin of cultivated , we examined the variation in three chloroplast DNA regions (RA, HA, LF) and two orthologous nuclear genes ( and ) of in 130 wild individuals (selected from 13 wild populations across its natural distribution range) and 21 cultivated individuals using a phylogeographic approach. The results showed three distinct chloroplast lineages, which were restricted to different mountain ranges, and strong plastid phylogeographic structure.

Genetic and ecophysiological evidence that hybridization facilitated lineage diversification in yellow Camellia (Theaceae) species: a case study of natural hybridization between C. micrantha and C. flavida.

Background: Hybridization is generally considered an important creative evolutionary force, yet this evolutionary process is still poorly characterized in karst plants. In this study, we focus on natural hybridization in yellow Camellia species, a group of habitat specialists confined to karst/non-karst habitats in southwestern China.

Results: Based on population genome data obtain from double digest restriction-site associated DNA (ddRAD) sequencing, we found evidence for natural hybridization and introgression between C.

Complete chloroplast genomes of Y. Wan et S. Z. Huang and R. C. Hu et Y. Q. Liufu.

Y. Wan et S. Z.

(Theaceae), a new species of yellow camellia from limestone karsts in southwestern China.

R.C.Hu & Y.

Highly Active Catalysis of Cobalt Tetrakis(pentafluorophenyl)porphyrin Promoted by Chitosan for Cyclohexane Oxidation in Response-Surface-Methodology-Optimized Reaction Conditions.

We aimed at elevating catalytic performances of cobalt tetrakis(pentafluorophenyl)porphyrin (Co TPFPP) through axial coordination, nanocavities, and covalently grafting action. The Co TPFPP was immobilized onto nanoporous and nonporous chitosan, forming Co TPFPP/np- and nonp-CTS catalysts, respectively. The catalysts were characterized by various spectroscopic techniques.

Population Genetic Structure and Phylogeography of (Theaceae) Based on Chloroplast and Nuclear DNA Sequences.

is an endangered species of yellow camellia growing in limestone mountains in southwest China. The current classification of into two varieties, var. and var.

Porous chitosan-supported metal tetra(4-carboxyphenyl)porphyrin as a practical model for the hydrophobic pocket/cavity of cytochrome P-450 enzyme.

The objective of this study was to investigate porous chitosan-supported metal tetra(4-carboxyphenyl)porphyrin [Me TCPP/p-CTS] as a practical model for the structure and function of the hydrophobic pocket cavity in cytochrome P-450 enzyme. Porous and non-porous chitosan-supported Me TCPPs [Me TCPP/p- and nonp-CTS] were prepared by a similar procedure, characterized using various techniques, and then used as catalysts for the aerobic oxidation of cyclohexane. The Me TCPP/p-CTS, which contained many cavities, showed higher catalytic activity than the Me TCPP/nonp-CTS.