Brassica rapa is an important crop species that produces vegetables, oilseed, and fodder. Although many studies reported quantitative trait loci (QTL) mapping, the genes governing most of its economically important traits are still unknown. In this study, we report QTL mapping for morphological and yield component traits in B. rapa and comparative map alignment between B. rapa, B. napus, B. juncea, and Arabidopsis thaliana to identify candidate genes and conserved QTL blocks between them. A total of 95 QTL were identified in different crucifer blocks of the B. rapa genome. Through synteny analysis with A. thaliana, B. rapa candidate genes and intronic and exonic single nucleotide polymorphisms in the parental lines were detected from whole genome resequenced data, a few of which were validated by mapping them to the QTL regions. Semi-quantitative reverse transcriptase PCR analysis showed differences in the expression levels of a few genes in parental lines. Comparative mapping identified five key major evolutionarily conserved crucifer blocks (R, J, F, E, and W) harbouring QTL for morphological and yield components traits between the A, B, and C subgenomes of B. rapa, B. juncea, and B. napus. The information of the identified candidate genes could be used for breeding B. rapa and other related Brassica species.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3576654 | PMC |
| http://dx.doi.org/10.1093/dnares/dss029 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Surface Amide-Mediated Synthesis of Bright Blue Fluorescent Carbon Dots for High-Sensitivity Detection of Hg Ions.
Luminescence
January 2025
School of Materials Science and Engineering, Beihang University, Beijing, China.
Mercury ions (Hg) seriously harm the central nervous system of humans, leading to brain damage and even heart failure and death. Therefore, effective detection of Hg in water quality has become an urgent research field. It is very important to develop economically efficient fluorescent sensors to achieve rapid and sensitive detection of Hg.
View Article and Find Full Text PDFEnhancing Food Security via selecting Superior Camelina (Camelina sativa L.) parents: a positive approach incorporating pheno-morphological traits, fatty acids composition, and Tocopherols Content.
BMC Plant Biol
January 2025
Department of Biotechnology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
Background: Preserving plant genetic resources is essential for tackling global food security challenges. Effectively meeting future agricultural demands requires comprehensive and efficient assessments of genetic diversity in breeding programs and germplasm from gene banks. This research investigated the diversity of pheno-morphological traits, along with the fatty acid and tocopherol content and composition, in 135 double haploid lines of camelina.
View Article and Find Full Text PDFContext-Dependent Heterotypic Assemblies of Intrinsically Disordered Peptides.
J Am Chem Soc
January 2025
Department of Chemistry, Brandeis University, 415 South St., Waltham, Massachusetts 02454, United States.
Despite their critical role in context-dependent interactions for protein functions, intrinsically disordered regions (IDRs) are often overlooked for designing peptide assemblies. Here, we exploit IDRs to enable context-dependent heterotypic assemblies of intrinsically disordered peptides, where "context-dependent" refers to assembly behavior driven by interactions with other molecules. By attaching an aromatic segment to oppositely charged intrinsically disordered peptides, we achieve a nanofiber formation.
View Article and Find Full Text PDFThe whole-genome dissection of root system architecture provides new insights for the genetic improvement of alfalfa ( L.).
Hortic Res
January 2025
Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China, 100193.
Appropriate root system architecture (RSA) can improve alfalfa yield, yet its genetic basis remains largely unexplored. This study evaluated six RSA traits in 171 alfalfa genotypes grown under controlled greenhouse conditions. We also analyzed five yield-related traits in normal and drought stress environments and found a significant correlation (0.
View Article and Find Full Text PDFMesoscale Filamentous Polyelectrolytes: Chemical Functionalization and Fluidic Structure.
Small
January 2025
Polymer Science & Engineering Department, Conte Center for Polymer Research, University of Massachusetts, 120 Governors Drive, Amherst, MA, 01003, USA.
Article Synopsis
- The paper discusses the preparation of mesoscale polymer filaments to explore their properties, which exist between molecular and bulk scales.
- It describes a method involving flow coating and evaporative deposition to create charged polymer filaments, specifically using thiol-ene reactions.
- The research finds that these filaments change shape in different aqueous environments, revealing important information about the structure of soft materials at multiple length scales.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!