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Haberer, G. ; Kamal, N. ; Bauer, E.* ; Gundlach, H. ; Fischer, I. ; Seidel, M. ; Spannagl, M. ; Marcon, C.* ; Ruban, A.* ; Urbany, C.* ; Nemri, A.* ; Hochholdinger, F.* ; Ouzunova, M.* ; Houben, A.* ; Schön, C.C.* ; Mayer, K.F.X.

European maize genomes highlight intraspecies variation in repeat and gene content.

Nat. Genet. 52, 950-957 (2020)
Verlagsversion Forschungsdaten DOI PMC
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
De novo genome assemblies of four European flint maize lines and comparison with two US Corn Belt genomes provide insights into the dynamics of intraspecies variation in repeat and gene content in maize genomes.The diversity of maize (Zea mays) is the backbone of modern heterotic patterns and hybrid breeding. Historically, US farmers exploited this variability to establish today's highly productive Corn Belt inbred lines from blends of dent and flint germplasm pools. Here, we report de novo genome sequences of four European flint lines assembled to pseudomolecules with scaffold N50 ranging from 6.1 to 10.4 Mb. Comparative analyses with two US Corn Belt lines explains the pronounced differences between both germplasms. While overall syntenic order and consolidated gene annotations reveal only moderate pangenomic differences, whole-genome alignments delineating the core and dispensable genome, and the analysis of heterochromatic knobs and orthologous long terminal repeat retrotransposons unveil the dynamics of the maize genome. The high-quality genome sequences of the flint pool complement the maize pangenome and provide an important tool to study maize improvement at a genome scale and to enhance modern hybrid breeding.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Diversity; Transcription; Population; Knob; Architecture; Prediction; Software; Program; Finder; Flint
ISSN (print) / ISBN 1061-4036
e-ISSN 1546-1718
Zeitschrift Nature Genetics
Quellenangaben Band: 52, Heft: 9, Seiten: 950-957 Artikelnummer: , Supplement: ,
Verlag Nature Publishing Group
Verlagsort New York, NY
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Plant Genome and Systems Biology (PGSB)