AI Article Synopsis
- The study explores the genetic makeup of a key gene pool for wheat improvement, focusing on controversial genomic origins and relationships within the genus.
- Utilizing single-copy nuclear genes and a technique called ND-FISH, the researchers characterized the chromosomes and genomic structure of the species.
- Findings indicate multiple E genome versions and a complex relationship between diploid and tetraploid forms, suggesting specific diploid species contributed to the genomes of the polyploid wheat.
Article Abstract
is an important gene pool for wheat genetic improvement. However, the origins of the genomes and the nature of the genus' intraspecific relationships are still controversial. In this study, we used single-copy nuclear genes and non-denaturing fluorescence in situ hybridization (ND-FISH) to characterize genome constitution and chromosome differentiation in . According to phylogenetic analyses based on and genes, there was an E genome with three versions (E, E, E) and St genomes in the polyploid The ND-FISH results of pSc119.2 and pAs1 revealed that the karyotypes of diploid and were different, and the chromosome differentiation occurred among accessions of the diploid In addition, the tetraploid has two groups of ND-FISH karyotype, indicating that the tetraploid might be a segmental allotetraploid. In summary, our results suggested that the diploid , , and were the donors of the E, E, and St genomes to the polyploid , respectively.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1139/gen-2019-0176 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Chromosome number alterations cause apoptosis and cellular hypertrophy in induced pluripotent stem cell models of embryonic epiblast cells.
Biol Open
January 2025
Manipal Institute of Regenerative Medicine, Manipal Academy of Higher Education, Manipal 576104, India.
Chromosomal aneuploidies are a major cause of developmental failure and pregnancy loss. To investigate the possible consequences of aneuploidy on early embryonic development in vitro, we focused on primed pluripotent stem cells that are relatable to the epiblast of post-implantation embryos in vivo. We used human induced pluripotent stem cells (iPSCs) as an epiblast model and altered chromosome numbers by treating with reversine, a small-molecule inhibitor of monopolar spindle 1 kinase (MSP1) that inactivates the spindle assembly checkpoint, which has been strongly implicated in chromosome mis-segregation and aneuploidy generation.
View Article and Find Full Text PDFGenome-wide analysis of sugar transporter gene family in and , expression profiling and identification of transcription factors.
Front Plant Sci
January 2025
State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Guangxi, China.
Sugar, the primary product of photosynthesis, is a vital requirement for cell activities. Allocation of sugar from source to sink tissues is facilitated by sugar transporters (ST). These STs belong to the Major Facilitator Superfamily (MFS), the largest family of STs in plants.
View Article and Find Full Text PDFCdkn1c orchestrates a molecular network that regulates the euploidy of the male mouse germline stem cells.
Development
January 2025
Department of Molecular Genetics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.
Karyotype instability in the germline leads to infertility. Unlike the female germline, the male germline continuously produces fertile sperm throughout life. Here we present a molecular network responsible for maintaining karyotype stability in the male mouse germline.
View Article and Find Full Text PDFGenetic differentiation in the MAT-proximal region is not sufficient for suppressing recombination in Podospora anserina.
G3 (Bethesda)
January 2025
Ecologie Systematique et Evolution, CNRS, Université Paris-Saclay, AgroParisTech, 91198 Gif-sur-Yvette, France.
Recombination is advantageous over the long-term, as it allows efficient selection and purging deleterious mutations. Nevertheless, recombination suppression has repeatedly evolved in sex and mating-type chromosomes. The evolutionary causes for recombination suppression and the proximal mechanisms preventing crossing overs are poorly understood.
View Article and Find Full Text PDFSystematic identification of Y-chromosome gene functions in mouse spermatogenesis.
Science
January 2025
Sex Chromosome Biology Laboratory, The Francis Crick Institute, London, UK.
The mammalian Y chromosome is essential for male fertility, but which Y genes regulate spermatogenesis is unresolved. We addressed this by generating 13 Y-deletant mouse models. In , , and deletants, spermatogenesis was impaired.
View Article and Find Full Text PDFWant 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!