Radiation treatment of genomes is used to generate chromosome breaks for numerous applications. This protocol describes the preparation of seeds and the determination of the optimal level of irradiation dosage for the creation of a radiation hybrid (RH) population. These RH lines can be used to generate high-resolution physical maps for the assembly of sequenced genomes as well as the fine mapping of genes. This procedure can also be used for mutation breeding and forward/reverse genetics.
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http://dx.doi.org/10.1007/978-1-4939-3622-9_8 | DOI Listing |
Nat Commun
January 2025
The National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China.
Dissecting the mechanisms underlying heat tolerance is important for understanding how plants acclimate to heat stress. Here, we identify a heat-responsive gene in Arabidopsis thaliana, RNA-DIRECTED DNA METHYLATION 16 (RDM16), which encodes a pre-mRNA splicing factor. Knockout mutants of RDM16 are hypersensitive to heat stress, which is associated with impaired splicing of the mRNAs of 18 out of 20 HEAT SHOCK TRANSCRIPTION FACTOR (HSF) genes.
View Article and Find Full Text PDFTheor Appl Genet
January 2025
Crop Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, 730070, China.
A major locus SC9.1 was identified and finely mapped into a 92.68 Kb region, and longmi004412 was identified as the casual gene regulating brown seed color in broomcorn millet.
View Article and Find Full Text PDFPlant Genome
March 2025
Department of Entomology and Plant Pathology, Oklahoma State University, Stillwater, Oklahoma, USA.
Leaf rust, caused by Puccinia triticina (Pt), is a serious constraint to wheat production. Developing resistant varieties is the best approach to managing this disease. Wheat leaf rust resistance (Lr) genes have been classified into either all-stage resistance (ASR) or adult-plant resistance (APR).
View Article and Find Full Text PDFGenomics
January 2025
Center for Bioinformatics, State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing 100871, PR China. Electronic address:
The spatiotemporal-specific gene expression is regulated by cell type-specific regulatory elements. Here we selected the H3K4me1-associated DNA sequences as candidate enhancers in two different human cell lines and performed ChIP-STARR-seq to quantify the cell-type-specific enhancer activities with high-resolution. We investigated how the activity landscape of enhancers would change when transferred from native cells (cis activity) to another cell lines (trans activity).
View Article and Find Full Text PDFNew Phytol
January 2025
School of Environment and Science, Griffith University, 170 Kessels Road, Nathan, Qld, 4111, Australia.
Genomics has revolutionised the study of invasive species, allowing evolutionary biologists to dissect mechanisms of invasion in unprecedented detail. Botanical research has played an important role in these advances, driving much of what we currently know about key determinants of invasion success (e.g.
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