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  1. Article ; Online: Genome evolution: On the nature of trade-offs with polyploidy and endopolyploidy.

    Leitch, Andrew R / Leitch, Ilia J

    Current biology : CB

    2022  Volume 32, Issue 18, Page(s) R952–R954

    Abstract: A new study uncovers a novel trade-off in polyploid plants. While the larger cells of polyploids benefit from increased cell storage and water retention, this comes at the cost of reduced structural stability, potentially impacting survival. ...

    Abstract A new study uncovers a novel trade-off in polyploid plants. While the larger cells of polyploids benefit from increased cell storage and water retention, this comes at the cost of reduced structural stability, potentially impacting survival.
    MeSH term(s) Genome, Plant ; Plants/genetics ; Polyploidy ; Water
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2022-07-08
    Publishing country England
    Document type Journal Article ; Comment
    ZDB-ID 1071731-6
    ISSN 1879-0445 ; 0960-9822
    ISSN (online) 1879-0445
    ISSN 0960-9822
    DOI 10.1016/j.cub.2022.08.012
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3208: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
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  2. Article: The genome sequence of the tree of heaven,

    Schley, Rowan J / Leitch, Ilia J / Christenhusz, Maarten J M

    Wellcome open research

    2023  Volume 8, Page(s) 321

    Abstract: We present a genome assembly from an ... ...

    Abstract We present a genome assembly from an individual
    Language English
    Publishing date 2023-07-25
    Publishing country England
    Document type Journal Article
    ISSN 2398-502X
    ISSN 2398-502X
    DOI 10.12688/wellcomeopenres.19628.1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: "BIFloraExplorer": A Taxonomic, Genetic, and Ecological Data Resource for the Vascular Plants of Britain and Ireland.

    Henniges, Marie C / Leitch, Andrew R / Leitch, Ilia J

    Methods in molecular biology (Clifton, N.J.)

    2023  Volume 2703, Page(s) 83–90

    Abstract: The vascular flora of Britain and Ireland is a historically well-documented and clearly delimited study system that offers itself to large-scale analyses of ecology and species assemblages. However, such analyses require clean, curated, and taxonomically ...

    Abstract The vascular flora of Britain and Ireland is a historically well-documented and clearly delimited study system that offers itself to large-scale analyses of ecology and species assemblages. However, such analyses require clean, curated, and taxonomically resolved data, which are often unavailable. In this chapter, we describe how to access and use a key data resource that combines a taxonomically stable species list with genetic data (genome size, chromosome counts, and DNA barcode information), ecological information (such as life-form, realized niche description, and geographic origin) and distribution records. The data resource enables and encourages the study of natural ecological and evolutionary patterns and processes within the vascular flora of Britain and Ireland.
    MeSH term(s) Ireland ; United Kingdom ; Tracheophyta ; Biological Evolution ; Genome Size
    Language English
    Publishing date 2023-08-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-0716-3389-2_7
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  4. Article: From genome size to trait evolution during angiosperm radiation.

    Bhadra, Sreetama / Leitch, Ilia J / Onstein, Renske E

    Trends in genetics : TIG

    2023  Volume 39, Issue 10, Page(s) 728–735

    Abstract: Angiosperm diversity arises from trait flexibility and repeated evolutionary radiations, but the role of genomic characters in these radiations remains unclear. In this opinion article, we discuss how genome size can influence angiosperm diversification ... ...

    Abstract Angiosperm diversity arises from trait flexibility and repeated evolutionary radiations, but the role of genomic characters in these radiations remains unclear. In this opinion article, we discuss how genome size can influence angiosperm diversification via its intricate link with cell size, tissue packing, and physiological processes which, in turn, influence the macroevolution of functional traits. We propose that integrating genome size, functional traits, and phylogenetic data across a wide range of lineages allows us to test whether genome size decrease consistently leads to increased trait flexibility, while genome size increase constrains trait evolution. Combining theories from molecular biology, functional ecology and macroevolution, we provide a framework to better understand the role of genome size in trait evolution, evolutionary radiations, and the global distribution of angiosperms.
    MeSH term(s) Phylogeny ; Biological Evolution ; Magnoliopsida/genetics ; Genome Size ; Ecology
    Language English
    Publishing date 2023-08-14
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 619240-3
    ISSN 1362-4555 ; 0168-9525 ; 0168-9479
    ISSN (online) 1362-4555
    ISSN 0168-9525 ; 0168-9479
    DOI 10.1016/j.tig.2023.07.006
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2272: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  5. Article ; Online: Phylogeny, biogeography and ecological diversification of New Caledonian palms (Arecaceae).

    Pérez-Calle, Victor / Bellot, Sidonie / Kuhnhäuser, Benedikt G / Pillon, Yohan / Forest, Félix / Leitch, Ilia J / Baker, William J

    Annals of botany

    2024  

    Abstract: Background and aims: The geographic origin and evolutionary mechanisms underpinning the rich and distinctive New Caledonian flora remain poorly understood. This is due to the complex geological past of the island and to the scarcity of well-resolved ... ...

    Abstract Background and aims: The geographic origin and evolutionary mechanisms underpinning the rich and distinctive New Caledonian flora remain poorly understood. This is due to the complex geological past of the island and to the scarcity of well-resolved species-level phylogenies. Here, we infer phylogenetic relationships and divergence times of New Caledonian palms, which comprise 40 species. We use this framework to elucidate the biogeography of New Caledonian palm lineages, and to explore how extant species may have formed.
    Methods: A phylogenetic tree including 37 New Caledonian palm species and 77 relatives from tribe Areceae was inferred from 151 nuclear genes obtained by targeted sequencing. Fossil-calibrated divergence times were estimated, and ancestral ranges were inferred. Ancestral and extant ecological preferences in terms of elevation, precipitation and substrate were compared between New Caledonian sister species to explore their possible roles as drivers of speciation.
    Key results: New Caledonian palms form four well-supported clades, inside which relationships are well resolved. Our results support the current classification, but suggest that Veillonia and Campecarpus should be resurrected, and fail to clarify whether Rhopalostylidinae is sister to or nested in Basseliniinae. New Caledonian palm lineages derive from New Guinean and Australian ancestors, which reached the island through at least three independent dispersal events between the Eocene and Miocene. Palms then dispersed out of New Caledonia at least five times, mainly towards Pacific islands. Geographic and ecological transitions associated with speciation events differed across time and genera. Substrate transitions were more frequently associated with older than younger events.
    Conclusions: Neighbouring areas and a mosaic of local habitats shaped New Caledonia's palm flora, and the island played a significant role in generating palm diversity across the Pacific region. This new spatio-temporal framework will enable population-level ecological and genetic studies to further unpick the mechanisms underpinning New Caledonian palm endemism.
    Language English
    Publishing date 2024-03-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 1461328-1
    ISSN 1095-8290 ; 0305-7364
    ISSN (online) 1095-8290
    ISSN 0305-7364
    DOI 10.1093/aob/mcae043
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  6. Article ; Online: The Plant DNA C-values database (release 7.1): an updated online repository of plant genome size data for comparative studies.

    Pellicer, Jaume / Leitch, Ilia J

    The New phytologist

    2019  Volume 226, Issue 2, Page(s) 301–305

    MeSH term(s) DNA, Plant ; Genome Size ; Genome, Plant/genetics ; Plants/genetics
    Chemical Substances DNA, Plant
    Language English
    Publishing date 2019-11-08
    Publishing country England
    Document type Letter
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.16261
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    In stock of ZB MED Bonn / Germany

    Z 868: Show issues

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  7. Article: The Role of Chromatin Modifications in the Evolution of Giant Plant Genomes.

    Leitch, Andrew R / Ma, Lu / Dodsworth, Steven / Fuchs, Jörg / Houben, Andreas / Leitch, Ilia J

    Plants (Basel, Switzerland)

    2023  Volume 12, Issue 11

    Abstract: Angiosperm genome sizes (GS) range ~2400-fold and comprise genes and their regulatory regions, repeats, semi-degraded repeats, and 'dark matter'. The latter represents repeats so degraded that they can no longer be recognised as repetitive. In exploring ... ...

    Abstract Angiosperm genome sizes (GS) range ~2400-fold and comprise genes and their regulatory regions, repeats, semi-degraded repeats, and 'dark matter'. The latter represents repeats so degraded that they can no longer be recognised as repetitive. In exploring whether the histone modifications associated with chromatin packaging of these contrasting genomic components are conserved across the diversity of GS in angiosperms, we compared immunocytochemistry data for two species whose GS differ ~286-fold. We compared published data for
    Language English
    Publishing date 2023-05-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants12112159
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  8. Article ; Online: First Whole Genome Sequence and Flow Cytometry Genome Size Data for the Lichen-Forming Fungus Ramalina farinacea (Ascomycota).

    Llewellyn, Theo / Mian, Sahr / Hill, Rowena / Leitch, Ilia J / Gaya, Ester

    Genome biology and evolution

    2023  

    Abstract: Lichen-forming fungi are a diverse and ecologically important group of obligate mutualistic symbionts. Due to difficulties with maintaining them in culture and their extremely slow growth, lichenologists are increasingly opting for metagenomic sequencing ...

    Abstract Lichen-forming fungi are a diverse and ecologically important group of obligate mutualistic symbionts. Due to difficulties with maintaining them in culture and their extremely slow growth, lichenologists are increasingly opting for metagenomic sequencing followed by symbiont genome separation using bioinformatic pipelines. However, without knowing the true genome size of the lichen-forming fungus, we cannot quantify the completeness of the genome assembly and the efficacy of the bioinformatic filtering. To address this issue, we report here the first whole-genome assembly for the lichen-forming fungus Ramalina farinacea (L.) Ach. sequenced with Oxford Nanopore long-read technology alongside direct measurements of its genome size using flow cytometry. The assembly showed high contiguity (N50 = 1.55 Mbp) and gene set completeness (BUSCO = 95.8%). The highly robust genome size obtained of 33.61 Mbp/1C (CV% = 2.98) showed our assembly covered 97% of the entire genome. Our results demonstrate that accurate genome size measurements can be obtained directly from lichen thalli and used to provide a benchmark for assessing true cytometric completeness of metagenome-derived assemblies.
    Language English
    Publishing date 2023-05-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2495328-3
    ISSN 1759-6653 ; 1759-6653
    ISSN (online) 1759-6653
    ISSN 1759-6653
    DOI 10.1093/gbe/evad074
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  9. Article ; Online: The Plant DNA C-Values Database: A One-Stop Shop for Plant Genome Size Data.

    Henniges, Marie C / Johnston, Emmeline / Pellicer, Jaume / Hidalgo, Oriane / Bennett, Michael D / Leitch, Ilia J

    Methods in molecular biology (Clifton, N.J.)

    2023  Volume 2703, Page(s) 111–122

    Abstract: Genome size is a plant character with far-reaching implications, ranging from impacts on the financial and computing feasibility of sequencing and assembling genomes all the way to influencing the very ecology and evolution of species. The increasing ... ...

    Abstract Genome size is a plant character with far-reaching implications, ranging from impacts on the financial and computing feasibility of sequencing and assembling genomes all the way to influencing the very ecology and evolution of species. The increasing recognition of the role of genome size in plant science has led to a rising demand for comprehensive and easily accessible sources of genome size data. The Plant DNA C-values database has established itself as a trusted and widely used central hub for users needing to access available plant genome size data, complemented with related cytogenetic (ploidy level) and karyological (chromosome number) information where available. Since its inception in 2001, the database has undergone six major updates to incorporate newly available genome size information, leading to the most recent release (Release 7.1), which comprises data for 12,273 species across all the major land plant and some algal lineages. Here we describe how to use the database efficiently, making use of its different query and filtering settings.
    MeSH term(s) Genome Size ; Genome, Plant ; Cytogenetics ; DNA, Plant/genetics ; Databases, Nucleic Acid
    Chemical Substances DNA, Plant
    Language English
    Publishing date 2023-08-16
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-0716-3389-2_9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: The Application of Flow Cytometry for Estimating Genome Size, Ploidy Level Endopolyploidy, and Reproductive Modes in Plants.

    Pellicer, Jaume / Powell, Robyn F / Leitch, Ilia J

    Methods in molecular biology (Clifton, N.J.)

    2020  Volume 2222, Page(s) 325–361

    Abstract: Over the years, the amount of DNA in a nucleus (genome size) has been estimated using a variety of methods, but increasingly, flow cytometry (FCM) has become the method of choice. The popularity of this technique lies in the ease of sample preparation ... ...

    Abstract Over the years, the amount of DNA in a nucleus (genome size) has been estimated using a variety of methods, but increasingly, flow cytometry (FCM) has become the method of choice. The popularity of this technique lies in the ease of sample preparation and in the large number of particles (i.e., nuclei) that can be analyzed in a very short period of time. This chapter presents a step-by-step guide to estimating the nuclear DNA content of plant nuclei using FCM. Attempting to serve as a tool for daily laboratory practice, we list, in detail, the equipment required, specific reagents and buffers needed, as well as the most frequently used protocols to carry out nuclei isolation. In addition, solutions to the most common problems that users may encounter when working with plant material and troubleshooting advice are provided. Finally, information about the correct terminology to use and the importance of obtaining chromosome counts to avoid cytological misinterpretations of the FCM data are discussed.
    MeSH term(s) Cell Fractionation ; Cell Nucleus/genetics ; Chromosomes, Plant ; Flow Cytometry/methods ; Fluorescent Dyes ; Genome Size ; Genome, Plant ; Models, Biological ; Plants/genetics ; Polyploidy ; Reproduction
    Chemical Substances Fluorescent Dyes
    Language English
    Publishing date 2020-12-10
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-0716-0997-2_17
    Database MEDical Literature Analysis and Retrieval System OnLINE

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