Chromosomal landscapes of Endogenous Retroviruses (ERVs) integrated in the sheep nuclear genome

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…

Conservation, divergence and functions of centromeric satellite DNA families in the Bovidae

350. Escudeiro A, Adega F, Robinson TJ, Heslop-Harrison JS, Chaves R. 2019. Conservation, divergence, and functions of centromeric satellite DNA families in the Bovidae. Genome Biology and Evolution 11(4):1152–1165. doi:10.1093/gbe/evz061 https://doi.org/10.1093/gbe/evz061 (Open access) Repetitive satellite DNA (satDNA) sequences are abundant in eukaryote genomes, with a structural and functional role in centromeric function. We analysed the nucleotide…

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…

An Immortalized Genetic Mapping Population for Perennial Ryegrass: A Resource for Phenotyping and Complex Trait Mapping

Velmurugan J, Milbourne D, Connolly V, Heslop-Harrison JS, Anhalt UC, Lynch MB, Barth S. 2018. An immortalized genetic mapping population for perennial ryegrass: a resource for phenotyping and complex trait mapping. Frontiers in Plant Science 9: article 717. https://doi.org/10.3389/fpls.2018.00717 To address the lack of a truly portable, universal reference mapping population for perennial ryegrass, we have…

Complete mitogenomes from Kurdistani sheep – abundant centromeric nuclear copies representing diverse ancestors

341. Mustafa SI, Schwarzacher T, and Heslop-Harrison JS. 2018. Complete mitogenomes from Kurdistani sheep: abundant centromeric nuclear copies representing diverse ancestors.  Mitochondrial DNA Part A https://doi.org/10.1080/24701394.2018.1431226 (publisher – see free publisher link below if you can’t access) AND Mustafa et al_2018 AuthorVersion The geographical center of domestication and species diversity for sheep (Ovis aries) lies around the…

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…

Repetitive DNA in the catfish genome- rDNA, microsatellites, and Tc1-mariner transposon sequences in Imparfinis

339. Gouveia JG, Wolf IR, Vilas-Boas LA, Heslop-Harrison JS, Schwarzacher T, Dias AL. 2017. Repetitive DNA in the catfish genome: rDNA, microsatellites, and Tc1-mariner transposon sequences in Imparfinis species (Siluriformes, Heptapteridae). Journal of Heredity 108(6): 650-657. Journal link: https://doi.org/10.1093/jhered/esx065 Author PHHGouveia_CatfishRepeatsAuthorVersion Physical mapping of repetitive DNA families in the karyotypes of fish is important to understand the organization and evolution…

Polyploidy and interspecific hybridisation: partners for adaptation, speciation and evolution in plants

337. Alix K, Gérard PR, Schwarzacher T, Heslop-Harrison JS. 2017. Polyploidy and interspecific hybridisation: partners for adaptation, speciation and evolution in plants. Annals of Botany 120(2): 183-194. https://doi.org/10.1093/aob/mcx079  (Free access). Polyploidy, defined as whole genome duplication, is present in almost all lineages of higher plants, with multiple rounds of polyploidy occurring in most extant species. This Annals…

Polyploidy and interspecific hybridisation: partners for adaptation, speciation and evolution in plants

337. Alix K, Gérard PR, Schwarzacher T, Heslop-Harrison JS. 2017. Polyploidy and interspecific hybridisation: partners for adaptation, speciation and evolution in plants. Annals of Botany 120: 183–194. https://dx.doi.org/10.1093/aob/mcx079 (freely available) Author version (free to post) to come. Figure 1 showing polyploidy or WGD whole genome duplication events in plant evolution is here AlixSchwarzacherHeslopHarrisonPlantEvolutionPolyploidyWGDAnnalsBotany (Powerpoint format) Background. Polyploidy or whole…

Chloroplast genomes from apomictic Taraxacum – identity and variation between microspecies

Taraxacum or dandelion chloroplast sequence diversity. Salih et al. PLoS One 2017. 333. Salih RHM, Majeský L, Schwarzacher T, Gornall R, Heslop-Harrison P. 2017.  Complete chloroplast genomes from apomictic Taraxacum (Asteraceae): Identity and variation between three microspecies. PLoS ONE 12(2): e0168008. doi:10.1371/journal.pone.0168008. Chloroplast DNA sequences show substantial variation between higher plant species, and less variation within…

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,…

Polyploidy

328. Heslop-Harrison JS. 2017. Polyploidy. In: Reference Module in Life Sciences, Elsevier, ISBN: 978-0-12- 809633-8, http://dx.doi.org/10.1016/B978-0-12-809633-8.06934-X (££$$€€) (see https://www.elsevier.com/solutions/sciencedirect/content/reference-modules for information about the series.) Abstract Polyploid organisms are eukaryotes that have more than two complete sets of chromosomes (one from each parent or ancestor) in somatic and germline cells of animals, fungi, and plants. Polyploidy of individual cells…