The dTph1 transposable element family of Petunia hybrida line W138 consists of between 100 and 200 members. A strategy that allows simultaneous detection of individual elements is described. Sequences flanking dTph1 elements are amplified by means of a ligation-mediated PCR. The resulting fragments are locus-specific and can be analysed by polyacrylamide gel electrophoresis. One of the applications of Transposon Display is the isolation of dTph1-tagged genes. Fragments that co-segregate with a mutant phenotype can be extracted from the gel and reamplified, providing access to tagged genes, as demonstrated in a reconstruction experiment. Data on the molecular identification of a phenotypic mutant, isolated in a random tagging experiment is also presented. Upon sequencing, the obtained candidate fragment was found to be identical to part of the previously identified Fbp1 gene.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1046/j.1365-313X.1998.00004.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
CHH hypermethylation contributes to the early ripening of grapes revealed by DNA methylome landscape of 'Kyoho' and its bud mutant.
Hortic Res
January 2025
College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China.
DNA methylation is a stable epigenetic mark that plays a crucial role in plant life processes. However, the specific functions of DNA methylation in grape berry development remain largely unknown. In this study, we performed whole-genome bisulfite sequencing on 'Kyoho' grape and its early-ripening bud mutant 'Fengzao' at different developmental stages.
View Article and Find Full Text PDFThe transposition of a heat-activated retrotransposon ONSEN resulted in changes in the hypocotyl elongation.
Genes Genet Syst
January 2025
Faculty of Science, Hokkaido University.
In our study, we aimed to identify new mutants resulting from ONSEN transposition in Arabidopsis thaliana by subjecting nrpd1 mutants to heat stress. We isolated a mutant with a significantly elongated hypocotyl, named "Long hypocotyl in ONSEN inserted line 1" (HYO1). This phenotype was heritable, with progeny consistently displaying longer hypocotyls than the wild type.
View Article and Find Full Text PDF-like Transposon Elements Inserted in Cause Male Sterility in Maize.
Int J Mol Sci
January 2025
State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China.
Using male sterile (MS) lines instead of normal inbred maternal lines in hybrid seed production can increase the yield and quality with lower production costs. Therefore, developing a new MS germplasm is essential for maize hybrid seed production in the future. Here, we reported a male sterility gene , cloned from a newly found MS mutant .
View Article and Find Full Text PDFAn atlas of transcription initiation reveals regulatory principles of gene and transposable element expression in early mammalian development.
Cell
January 2025
Institute of Epigenetics and Stem Cells, Helmholtz Munich, Munich, Germany; Faculty of Biology, Ludwig-Maximilians Universität, Munich, Germany. Electronic address:
Transcriptional activation of the embryonic genome (EGA) is a major developmental landmark enabling the embryo to become independent from maternal control. The magnitude and control of transcriptional reprogramming during this event across mammals remains poorly understood. Here, we developed Smart-seq+5' for high sensitivity, full-length transcript coverage and simultaneous capture of 5' transcript information from single cells and single embryos.
View Article and Find Full Text PDFAlternative silencing states of transposable elements in Arabidopsis associated with H3K27me3.
Genome Biol
January 2025
Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, Centre National de La Recherche Scientifique (CNRS), Commissariat À L'EnergieAtomique (CEA), Gif-Sur-Yvette, 91190, France.
Background: The DNA/H3K9 methylation and Polycomb-group proteins (PcG)-H3K27me3 silencing pathways have long been considered mutually exclusive and specific to transposable elements (TEs) and genes, respectively in mammals, plants, and fungi. However, H3K27me3 can be recruited to many TEs in the absence of DNA/H3K9 methylation machinery and sometimes also co-occur with DNA methylation.
Results: In this study, we show that TEs can also be solely targeted and silenced by H3K27me3 in wild-type Arabidopsis plants.
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!