Cover of our article on Cassandra retrotransposons: These are transposons that have caught and use the 5S rDNA promoters.
Cover of our protocol book "Plant Cytogenetics and Cytogenomics" in the "Methods in Molecular Biology" series.
L. Mann, K. Balasch, N. Schmidt, T. Heitkam (2023): "High-fidelity (repeat) consensus sequences from short reads using combined read clustering and assembly", bioRxiv, doi: 10.1101/2023.10.26.564123. read preprint
Twitter thread explaining the paper
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N. Schmidt, K. Sielemann, S. Breitenbach, J. Fuchs, B. Pucker, B. Weisshaar, D. Holtgräwe, T. Heitkam (2023): "Repeat turnover meets stable chromosomes: repetitive DNA sequences mark speciation and gene pool boundaries in sugar beet and wild beets", bioRxiv, doi: 10.1101/2023.09.01.555723. read preprint
Twitter thread explaining the paper
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Maiwald S., Mann L., Garcia S. and Heitkam T. (2023): "Evolving together: Cassandra retrotransposons gradually mirror promoter mutations of the 5S rRNA genes", bioRxiv, doi: 10.1101/2023.07.14.548913. read preprint
Twitter thread explaining the paper
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Sielemann K., Schmidt N., Guzik J., Kalina N., Pucker B., Viehöver P., Breitenbach S., Weisshaar B., Heitkam T. and Holtgräwe D. (2023): "Pangenome of cultivated beet and crop wild relatives reveals parental relationships of a tetraploid wild beet", bioRxiv, doi: 10.1101/2023.06.28.546919. read preprint
Twitter thread explaining the paper
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Mann L. and Heitkam T. (2023): "Die Rückkehr der Ringe: Sequenzierung extra-chromosomaler zirkulärer DNA", Biospektrum 23(5), doi: 10.1007/s12268-023-1981-0. read article
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Heitkam T. and Garcia S. (eds.) (2023): “Plant Cytogenetics and Cytogenomics”, volume 2672 of the “Methods in Molecular Biology” series, J. Walker (series ed.), Humana New York, US, ISBN: 978-1-0716-3225-3. read book
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N. Schmidt, B. Weber, J. Klekar, S. Liedtke, S. Breitenbach, and T. Heitkam (2023): “Preparation of mitotic chromosomes using the dropping technique”, chapter in Methods in Molecular Biology 2672: Plant Cytogenetics and Cytogenomics, T. Heitkam and S. Garcia (eds.); J. Walker (series ed.), Humana New York, US, doi: https://doi.org/10.1007/978-1-0716-3226-0_8 read chapter
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L. Mann and S. Maiwald (2023): “Visualization of Oligonucleotide-Based Probes Along Pseudochromosomes Using RIdeogram, KaryoploteR, and Circlize (Circos)”, chapter in Methods in Molecular Biology 2672: Plant Cytogenetics and Cytogenomics, T. Heitkam and S. Garcia (eds.); J. Walker (series ed.), Humana New York, US, doi: https://doi.org/10.1007/978-1-0716-3226-0_26 read chapter
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Hartig N., Seibt K. M., Heitkam T. (2023): “How to start a LINE: 5’ switching rejuvenates LINE retrotransposons in tobacco and related Nicotiana species”, Plant Journal. read article
Read the corresponding preprint: bioRxiv, doi: 10.1101/2022.11.04.512097.
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Liedtke S., Breitenbach S., Heitkam T. (2022): “FISH – in plant chromosomes”, chapter in Cytogenetics and Molecular Cytogenetics, T. Liehr (ed.), Taylor and Francis, doi: 10.1201/9781003223658-28. read chapter
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Schulte L., Meucci S., Stoof-Leichsenring K., Heitkam T., Schmidt N., von Hippel B., Diekmann B., Biskaborn B. K., Wagner B., Melles M., Pestryakova L. A., Krutovsky K. V., Herzschuh U. (2022): “Dynamics of larch species ranges in Siberia since the Last Glacial captured from sedimentary ancient DNA”, Communications Biology 5 (570), doi: https://doi.org/10.1038/s42003-022-03455-0. read article
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Kazemi-Shahandashti S.-S., Mann L., El-nagish A., Harpke D., Nemati Z., Usadel B., Heitkam T. (2022): “Ancient artworks and crocus genetics both support saffron’s origin in early Greece”, Frontiers in Plant Science, doi: 10.3389/fpls.2022.834416. read article
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Sielemann K., Pucker B., Schmidt N., Viehöver P., Weisshaar B., Heitkam T., Holtgräwe D. (2022): “Complete pan-plastome sequences enable high resolution phylogenetic classification of sugar beet and closely related crop wild relatives”, BMC Genomics 23 (113), doi: 10.1186/s12864-022-08336-8. read article
Read the corresponding preprint: bioRxiv, doi: 10.1101/2021.10.08.463637
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Mann L., Seibt K. M., Weber B., Heitkam T. (2022): “ECCsplorer: a pipeline to detect extrachromosomal circular DNA (eccDNA) from next-generation sequencing data”, BMC Bioinformatics 23 (40), doi: 10.1186/s12859-021-04545-2. read article
Read the corresponding preprint: bioRxiv, doi: 10.1101/2021.06.08.447410
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Sultana N., Menzel G., Seibt K. M., Garcia S., Weber B., Serçe S., and Heitkam T. (2022): „Genome-wide analysis of long terminal repeat retrotransposons from the cranberry Vaccinium macrocarpon“, Journal of Berry Research 12 (2), doi: 10.3233/JBR-211515. read article
Read the corresponding open access preprint: bioRxiv, doi: 10.1101/2021.07.15.452536
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Heitkam T. and Garcia S. (2021): “Can we have it all? Repurposing target-capture for repeat genomics. A commentary on: Aiming off the target: recycling target-capture sequencing reads for investigating repetitive DNA”, invited commentary for Annals of Botany, doi: 10.1093/aob/mcab080.
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The TE Hub Consortium, Elliott T., Heitkam T., Hubley R., Quesneville H., Suh A., Wheeler T. (2021): “TE Hub: a community-oriented space for sharing and connecting tools, data, resources, and methods for transposable element annotation”, Mobile DNA, doi: 10.1186/s13100-021-00244-0. read article
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Heitkam T., Schulte L., Weber B., Liedtke S., Breitenbach S., Kögler A., Morgenstern K., Brückner M., Tröber U., Wolf H., Krabel D., and Schmidt T. (2021): “Comparative repeat profiling of two closely related conifers (Larix decidua and Larix kaempferi) reveals high genome similarity with only few fast-evolving satellite DNAs”. Frontiers in Genetics, doi: 10.3389/fgene.2021.683668. read article
Read the corresponding preprint: bioRxiv, doi: 10.1101/2021.03.21.436054
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Reiche B., Kögler A., Morgenstern K., Brückner M., Weber B., Heitkam T., Seibt K. M., Tröber U., Meyer M., Wolf H., Schmidt T., and Krabel D. (2021): "Application of retrotransposon-based Inter-SINE Amplified Polymorphism (ISAP) markers for the differentiation of common poplar genotypes". Canadian Journal of Forest Research, doi: 10.1139/cjfr-2020-0209. read article
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Schmidt N., Seibt K. M., Weber B., Schwarzacher T., Schmidt T., and Heitkam T. (2021): Broken, silent, and in hiding: Tamed endogenous pararetroviruses escape elimination from the genome of sugar beet (Beta vulgaris). Annals of Botany doi: 10.1093/aob/mcab042. read article (free access link)
Read the corresponding preprint: bioRxiv, doi: 10.1101/2020.12.02.407783
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Maiwald S., Weber B., Seibt K. M., Schmidt T., and Heitkam T. (2021): The Cassandra retrotransposon landscape in sugar beet (Beta vulgaris) and the Amaranthaceae: Recombination and re-shuffling lead to a high structural variability. Annals of Botany 127(1): 91-109. read article (free access link)
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Sultana N., Menzel G., Heitkam T., Kojima K. K., Bao W., Serçe S. (2020): Bioinformatic and molecular analysis of satellite repeat diversity in Vaccinium genomes. Genes 11(5): 527. read article
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Reiche B., Kögler A., Morgenstern K., Brückner M., Weber B., Heitkam T., Seibt K. M., Tröber U., Meyer M., Wolf H., Schmidt T., Krabel D. (2020): Anwendung des SINE-basierten Markersystems ISAP zur Identifizierung von Pappelklonen. In: Liesebach M (ed) Thünen Report 76: Forstpflanzenzüchtung für die Praxis. Johann Heinrich von Thünen-Institut, Braunschweig: 144-154. read article
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Kögler A., Seibt K. M., Heitkam T., Morgenstern K., Reiche B., Brückner M., Wolf H., Krabel D. and Schmidt T. (2020): Divergence of 3’ ends as driver of Short Interspersed Nuclear Element (SINE) evolution in the Salicaceae. The Plant Journal 103(1): 443-458. read article
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Heitkam T., Weber B., Walter I., Liedtke S., Ost C. and Schmidt T. (2020): Satellite DNA landscapes after allotetraploidisation of quinoa (Chenopodium quinoa) reveal unique A and B subgenomes. The Plant Journal 103(1): 32-52. read article
Read the corresponding preprint (open access): bioRxiv, doi: 10.1101/774828
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Seibt K. M., Schmidt T. and Heitkam T. (2020): The conserved 3’ Angio-domain defines a superfamily of short interspersed nuclear elements (SINEs) in higher plants. The Plant Journal 101:681-699. read article
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Heitkam T. (2019): Balancing retrospection and visions: The Cytogenetics group of the Society of Plant Breeding (GPZ) came together in Dresden. Cytogenetic and Genome Research 159:163-168 read article
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Schmidt T., Heitkam T., Liedtke S., Schubert V. and Menzel G. (2019): Adding color to a century-old enigma: Multi-color chromosome identification unravels the autotriploid nature of saffron (Crocus sativus) as a hybrid of wild Crocus cartwrightianus cytotypes. New Phytologist 222:1965-1980 read article
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Seibt K. M., Schmidt T. and Heitkam T. (2018): FlexiDot: Highly customizable, ambiguity-aware dotplots for visual sequence analyses. Bioinformatics 34:3575–3577 read article (this link grants pdf access) FlexiDot software, documentation and examples
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Sultana N., Serçe S., Menzel G., Heitkam T. and Schmidt T. (2017): Comparative analysis of repetitive sequences reveals genome differences between two common cultivated Vaccinium species (V. corymbosum and V. macrocarpon). Journal of Molecular Biology and Biotechnology 1:07-15 read article
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Heitkam T., Petrasch S., Zakrzewski F., Kögler A., Wenke T., Wanke S. and Schmidt T. (2015): Next-generation sequencing reveals differentially amplified tandem repeats as a major genome component of Northern Europe's oldest Camellia japonica. Chromosome Research 23:791-806 read article
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Gilly A., Etcheverry M., Madoui M.-A., Guy J., Quadrana L., Alberti A., Martin A., Heitkam T., Engelen S., Labadie K., Le Pen J., Wincker P., Colot V., and Aury J.-M. (2014): TE-Tracker: systematic identification of transposition events through whole-genome resequencing. BMC Bioinformatics 15:377 read article
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Heitkam T, Holtgräwe D, Dohm JC, Minoche AE, Himmelbauer H, Weisshaar B and Schmidt T (2014): Profiling of extensively diversified plant LINEs reveals distinct plant-specific subclades. The Plant Journal, 79:385-397 read article
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Weber B., Heitkam T., Holtgräwe D., Weishaar B., Minoche A.E., Himmelbauer H., Dohm J.C., Schmidt T. (2013): Highly diverse chromoviruses of Beta vulgaris are classified by chromodomains and chromosomal integration. Mobile DNA 4:8 read article
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Wollrab C., Heitkam T., Holtgräwe D., Weisshaar B., Minoche A.E., Dohm J.C., Himmelbauer H., Schmidt T. (2012): Evolutionary reshuffling in the Errantivirus lineage Elbe within the Beta vulgaris genome. Plant Journal 72:636-651 read article
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Weber, B., Wenke, T., Frommel, U., Schmidt, T. and Heitkam, T. (2010): The Ty1-copia families SALIRE and Cotzilla populating the Beta vulgaris genome show remarkable differences in abundance, chromosomal distribution, and age. Chromosome Res. 18:247-263. read article
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Heitkam, T., T.Schmidt (2009): BNR – a LINE family from Beta vulgaris – contains a RRM domain in open reading frame 1 and defines a L1 sub-clade present in diverse plant genomes. Plant Journal 59:872-882 read article