Track topics on Twitter Track topics that are important to you
Curcuma is an important member of Zingiberaceae. Many species of this genus are widely used in traditional medicine and have important cultural value in East Asia. Among them, C. longa is considered to be the main source of curcumin and has a very wide range of uses. The rapid development of molecular phylogeny has deepened our understanding of taxonomy and evolution of Curcuma. However, little is known about the chloroplast genome phylogeny and the genetic bases of adaptative evolution. In this work, we sequenced the complete chloroplast genome of 4 Curcuma species. Curcuma chloroplast genomes showed highly conserved structures and the length ranged from 159,423 bp to 152,723 bp. A total of 133 genes were observed. Multiple repeats and simple sequence repeats (SSRs) were detected. By comparing with related species, 7 highly variable regions were identified as potential specific DNA barcodes for species identification. Phylogenetic analysis of complete plastome sequences and specific data sets revealed discordance with expected genus boundary. Chloroplast phylogenetic relationships were better predicted by geography than by morphological and nuclear DNA, indicating a substantial existence of introgression. 9 genes were proved to have high posteriori probability in positive selection analysis, and 4 of them (psbA, psbD, PetA and rbcL) closely related to photosynthesis, implying that chloroplast genes may had undergone positive selection pressure in evolution. These results are of great significance for us to understand the genetic basis, phylogeny and adaptive evolution of Curcuma chloroplast.
This article was published in the following journal.
Artemisia L. is a complex genus of medicinal importance. Publicly available chloroplast genomes of few Artemisia species are insufficient to resolve taxonomic discrepancies at species level. We report...
Diatoms are the most diverse lineage of algae, but the diversity of their chloroplast genomes, particularly within a genus, has not been well documented. Herein, we present three chloroplast genomes f...
Chloroplasts significantly influence species phylogenies because of their maternal inheritance and the moderate evolutionary rate of their genomes. Avocado, which is a member of the family Lauraceae, ...
Vachellia and Senegalia are the most important genera in the subfamily Mimosoideae (Fabaceae). Recently, species from both genera were separated from the long-characterized Acacia due to their macro-m...
Castanopsis sclerophylla (Lindl.) Schott is an important species of evergreen broad-leaved tree in subtropical areas and has high ecological and economic value. However, there are few studies on its c...
Incidence of digestive neuroendocrine tumors are increasing. Analysis of individual microbiota is a way to explore new neoplastic mechanisms, tumor identification and therapeutic orientati...
This is a single center, prospective, randomized controlled study. The primary objective of this study is to measure migration over two years with RSA. Patients will be randomized in two a...
The aim of the study is to evaluate at 3 months the effect of a supplementation with extracts of Curcuma longa, Boswellia serrata and Porphyra umbilicalis on the acceptability of pain for ...
Prospective, multicenter, phase IV, open, randomized, parallel, controlled, in which 288 (two hundred and eighty-eight) participants of both sexes, aged between 40 and 75 years will be ran...
Curcumin (diferuloylmethane) is the chief component of the spice turmeric and is derived from the rhizome of the East Indian plant Curcuma longa. Curcuma longais a member of the Zingiberac...
A yellow-orange dye obtained from tumeric, the powdered root of CURCUMA longa. It is used in the preparation of curcuma paper and the detection of boron. Curcumin appears to possess a spectrum of pharmacological properties, due primarily to its inhibitory effects on metabolic enzymes.
Those nucleic acid sequences that function as units of heredity which are located within the CHLOROPLAST DNA.
Bacteria that can survive and grow in the complete, or nearly complete absence of oxygen.
Works about clinical studies in which a prospectively planned opportunity is included to modify trial designs and hypotheses based on analysis of data from subjects in the study .
The relationships of groups of organisms as reflected by their genetic makeup.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...