Sarbast Ihsan Mustafa, Trude Schwarzacher and John S. Heslop-Harrison The Nature and Chromosomal Landscape of Endogenous Retroviruses (ERVs) Integrated in the Sheep Nuclear Genome. DNA 2022, 2(1), 86-103; Free full text: https://doi.org/10.3390/dna2010007 Endogenous retroviruses (ERVs) represent genomic components of retroviral origin that are found integrated in the genomes of various species of vertebrates. These genomic…
Tag: repetitive DNA
Bovine satellite DNAs and a history of the evolution of complexity and its impact in the Bovidae family
348. Escudeiro A, Ferreira D, Mendes-da-Silva A, Heslop-Harrison JS, Adega F, Chaves R. 2019. Bovine satellite DNAs–a history of the evolution of complexity and its impact in the Bovidae family. European Zoological Journal. 2019 Jan 1 86(1):20-37. https://doi.org/10.1080/24750263.2018.1558294 (Open access) Despite the many questions regarding satellite DNA sequences and their cellular roles, the evolutionary history of…
Crop Improvement – Plant Nuclear Genomes
328. Heslop-Harrison JS. 2017. Crop Improvement: Plant Nuclear Genomes. Encyclopedia of Applied Plant Sciences 2nd Edition. In proof. Plant breeders work with large amounts of DNA sequence information including the sequences of all genes and the repetitive DNA that makes up the majority of most genomes. Knowledge of the diversity and evolution of the sequences…
Domestication, polyploidy and genomics of crops and weeds PAGXXV
Plant and Animal Genome Conference in San Diego #PAGXXV each January is the chance to join 3500 people working in genomics. I presented a talk on the molecular cytogenetics group’s work, starting with consideration of early stages of crop domestication, and then thinking about how we can make agriculture more sustainable. I also considered weeds,…
Analysis of Petunia vein clearing virus (PVCV) sequences, retroelements and tandem repeats in Petunia axillaris N and P. inflata S6
325a. Schwarzacher T, Heslop-Harrison JS, Richert-Pöggeler KR. 2016. Analysis of Petunia vein clearing virus (PVCV) sequences, retroelements and tandem repeats in Petunia axillaris N and P. inflata S6. Supplementary manuscript 2. Nature Plants 2: article number 16074. Link to manuscript: Petunia_PVCV_Repeats_SchwarzacherEtAl2016 Within the genome sequence assemblies of P. axillaris (PaxiN) and P. inflata (PinfS6) and unassembled reads, we…
The molecular cytogenetic characterization of pistachio (Pistacia vera) suggests the arrest of recombination in the largest heteropycnotic pair HC1
TS. Sola-Campoy PJ, Robles F, Schwarzacher T, Ruiz Rejón C, de la Herrán R, Navajas-Pérez R (2015) The molecular cytogenetic characterization of Pistachio (Pistacia vera L.) suggests the arrest of recombination in the largest heteropycnotic pair HC1. PLoS ONE 10(12): e0143861. doi:10.1371/journal.pone.0143861. Local copy here. This paper represents the first molecular cytogenetic characterization of the…
Repetitive DNA in eukaryotic genomes
322. Biscotti MA, Olmo E, Heslop-Harrison JS. 2015. Repetitive DNA in eukaryotic genomes. Chromosome Research 23(3): 415-420. DOI: 10.1007/s10577-015-9499-z Biscotti Repetitive DNA Author Version Link to Repetitive DNA summary Diagram Molcyt.com DNA Repetitive DNA — sequence motifs repeated hundreds or thousands of times in the genome— makes up the major proportion of all the nuclear DNA in…
Chromosomal distribution and evolution of retrotransposons in diploid and polyploid Brachiaria forage grasses
319. Santos FC, Guyot R, Valle CB do, Chiari L, Techio VH, Heslop-Harrison P, Vanzela ALL. 2015. Chromosomal distribution and evolution of abundant retrotransposons in plants: gypsy elements in diploid and polyploid Brachiaria forage grasses. Chromosome Research 23(3): 571-582. DOI: 10.1007/s10577-015-9492-6 Text Brachiaria_Fabiola_Santos_etal AuthorVersion. Abstract: Like other eukaryotes, the nuclear genome of plants consists of DNA with…
Evolutionary genomics of miniature inverted-repeat transposable elements (MITEs) in Brassica
317. Nouroz F, Noreen S, Heslop-Harrison JS. 2015. Evolutionary genomics of miniature inverted-repeat transposable elements (MITEs) in Brassica. Molecular Genetics and Genomics (MGG) 290 (6): 2297–2312. DOI: 10.1007/s00438-015-1076-9 Brassica MITEs Author Version MGG download Miniature inverted-repeat transposable elements (MITEs) are truncated derivatives of autonomous DNA transposons, and are dispersed abundantly in most eukaryotic genomes. We aimed to characterize various MITEs families…
Repetitive DNA in the edible button mushroom
I have a mental picture of the structure of a typical plant genome and typical animal genome, with their transposons (DNA and RNA), tandemly-repeated satellite sequences, minisatellites, microsatellites and other repeats. From this paper, I have a view of repeats in the second most important edible fungus (after yeast, Saccharomyces cerevisiae), the button mushroom Agaricus bisporus. Its genome, with n=13 chromosomes,…
Alien chromosome introgression transferring characters into bread wheat
In situ hybridization is now widely used to identify the nature and size of chromosome, chromosome arm and chromosome segment introgressions from alien or wild species in plant breeding lines. The molecular cytogenetics research group has several projects investigating introgression of chromosomes into wheat from rye, Thinopyrum (2x and 6x), Aegilops and other species or…
Mateus Mondin University of Sao Paulo Brazil: collaborator
We are collaborating with Professor Doctor Mateus Mondin from the University of São Paulo, ESALQ, Piracicaba, Brazil, on repetitive DNA evolution in Medicago DNA sequences, and its contribution to genome evolution and variation. The environmental, nutritional (animal, and plant through nitrogen fixation) and economic importance of this family, combined with the availability of large amounts of legume DNA…
Plant nuclear genome composition
299. Heslop-Harrison, JS (Pat); and Schmidt, T (August 2012) Plant Nuclear Genome Composition. In: eLS 2012, John Wiley & Sons Ltd: Chichester http://www.els.net/ Author-prepared preprint linked here. Subscription DOI: http://onlinelibrary.wiley.com/doi/10.1002/9780470015902.a0002014.pub2/abstract (but this link seems not to work: http://dx.doi.org/10.1002/9780470015902.a0002014.pub2 Nov 2012). Intranet: http://www.le.ac.uk/biology/phh4/HHpubs/ELS_PlantGenomes_SchmidtHH.pdf due Nov 2012). The plant nuclear genome consists of DNA divided among the chromosomes within the cell nucleus. Plant…
Molecular cytogenetics and genome evolution 