Impact of genomic environment on mitochondrial rps7 mRNA features in grasses.

Molecular Genetics and Genomics : MGG
Evan ByersLinda Bonen

Abstract

The mitochondrial genomes of flowering plants are highly recombinogenic and this can lead to altered transcriptional units, even between closely related species. We are interested in the effects that DNA rearrangements have on the generation of mature mRNAs, and to this end we have determined the termini of mitochondrial S7 ribosomal protein (rps7) mRNAs from selected grasses, using circularized-RT-PCR. Although the rps7 mRNAs show a similar size of about 750 nt by northern hybridization analysis and have virtually identical 3' UTRs, their 5' terminal extremities differ among plant species, and this is attributable to genome rearrangements in some but not all cases. In wheat, rice, and barley, the 5' ends are homogeneous for each plant but map to non-homologous sites among the three species. In contrast, the rye, brome and Lolium 5' ends are quite heterogeneous in length even though they are located within conserved genomic regions. Comparative sequence analysis suggests that certain grass lineages have retained an ancestral organization upstream of rps7 that includes a 170-bp block homologous to sequences preceding several other mitochondrial genes, whereas others have undergone independent rearrangements at a recombination-pr...Continue Reading

References

Oct 19, 1989·Nature·P S Covello, M W Gray
Jan 1, 1993·Molecular & General Genetics : MGG·D Zhuo, L Bonen
Oct 1, 1996·Plant Molecular Biology·S BinderA Brennicke
Dec 28, 1999·Proceedings of the National Academy of Sciences of the United States of America·P Giegé, A Brennicke
Apr 3, 2001·Science·M M YusupovH F Noller
Jul 18, 2002·Proceedings of the National Academy of Sciences of the United States of America·Keith L AdamsJeffrey D Palmer
Jun 26, 2003·Nucleic Acids Research·Michael Zuker
Mar 24, 2004·The Journal of Biological Chemistry·Romary PerrinDominique Gagliardi
Nov 16, 2004·Plant Physiology·Sandra W CliftonKathleen J Newton
Jan 18, 2005·Nucleic Acids Research·Kristina KühnThomas Börner
Feb 16, 2007·Molecular Biology and Evolution·Thomas Hazle, Linda Bonen
Dec 11, 2007·Mitochondrion·Tomohiko Kubo, Kathleen J Newton
Mar 8, 2008·Biochimica Et Biophysica Acta·Sarah HolecDominique Gagliardi
Mar 8, 2008·Mitochondrion·Mizuki TakenakaAxel Brennicke
Aug 8, 2008·Plant Physiology·Joachim FornerStefan Binder
Sep 4, 2008·Molecular Genetics and Genomics : MGG·Sophie Calixte, Linda Bonen
Nov 14, 2008·Trends in Plant Science·Christian Schmitz-Linneweber, Ian Small
Oct 1, 2004·American Journal of Botany·Elizabeth A Kellogg, Jeffrey L Bennetzen

❮ Previous
Next ❯

Citations

Aug 16, 2012·Genome Génome / Conseil National De Recherches Canada·Evan Byers, Linda Bonen

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.