Publications by authors named "Qingxin Du"
As a primary approach to nutrient propagation for many woody plants, cutting roots is essential for the breeding and production of Oliver. In this study, hormone level, transcriptomics, and metabolomics analyses were performed on two varieties with different adventitious root (AR) formation abilities. The higher JA level on the 0th day and the lower JA level on the 18th day promoted superior AR development.
View Article and Find Full Text PDFThe chromosome-level genome of provides insights into sex differentiation and α-linolenic acid biosynthesis.
Front Plant Sci
March 2023
Oliver is a typical dioecious plant endemic to China that has great medicinal and economic value. Here, we report a high-quality chromosome-level female genome of obtained by PacBio and Hi-C technologies. The size of the female genome assembly was 1.
View Article and Find Full Text PDFAnalysis of chemotypes and their markers in leaves of core collections of using metabolomics.
Front Plant Sci
January 2023
The leaves of contain various active compunds and nutritional components, and have successively been included as raw materials in the , the , and the . Core collections of had been constructed from the conserved germplasm resources basing on molecular markers and morphological traits, however, the metabolite diversity and variation in this core population were little understood. Metabolite profiles of leaves of 193 core collections were comprehensively characterized by GC-MS and LC-MS/MS based non-targeted metabolomics in present study.
View Article and Find Full Text PDFWhole genome re-sequencing reveals the genetic diversity and evolutionary patterns of Eucommia ulmoides.
Mol Genet Genomics
March 2022
Article Synopsis
- Eucommia ulmoides, a deciduous tree known as a "living fossil," has uncertain genetic diversity and population structure, prompting a study to investigate these factors through genome re-sequencing of 12 accessions from various climatic regions in China.
- The analysis revealed that E. ulmoides accessions clustered into four different groups based on geographical locations, with samples from Hunan and Shanghai showing unexpected close genetic relationships and higher genetic diversity compared to those from other areas.
- The research also identified significant genetic differentiation between groups based on geographic classification and highlighted nine genes related to biological regulation processes and Eu-rubber biosynthesis through selective sweep analyses.
Article Synopsis
- The study focuses on the 2',3'-cycling ribonuclease (RNase) T2 gene family, which are important for RNA cleavage in plants and have been conserved across eukaryotes.
- Researchers identified 21 EURNS genes in the plant Eucommia ulmoides and analyzed their structure, evolutionary relationships, and expression patterns in different tissues.
- Findings showed that EURNS proteins vary in size and molecular weight, have specific conserved motifs, and exhibit tissue-specific expression, with segment duplication being the primary mode of gene duplication in this family.
Background: In the Chinese health care industry, male Oliv. flowers are newly approved as a raw material of functional food. Core collections have been constructed from conserved germplasm resources based on phenotypic traits and molecular markers.
View Article and Find Full Text PDFEucommia ulmoides, also called hardy rubber tree, is an economically important tree; however, the lack of its genome sequence restricts the fundamental biological research and applied studies of this plant species. Here, we present a high-quality assembly of its ∼1.2-Gb genome (scaffold N50 = 1.
View Article and Find Full Text PDF[A genetic study of 15 STR loci in Chinese East Mongolian population].
Fa Yi Xue Za Zhi
December 2005
Objective: To investigate the genetic polymorphisms of 15 STRs loci in Chinese East Mongolian population.
Methods: DNA samples from 105 unrelated individuals in Chinese East Mongolian population were screened by Power Plex 16 System and ABI3100 Genetic Analyzer.
Results: The genotype frequencies of these 15 STR loci meet the Hardy-Weinberg expectation.