Fig. 4From: Genome-wide characterization of non-reference transposable element insertion polymorphisms reveals genetic diversity in tropical and temperate maizeRelationship among NRTEs, BR rates, and LD patterns on chromosome 1 in temperate and tropical maize lines. a-b Frequencies and densities of NRTEs on chromosome 1 in temperate and tropical maize lines. c-d LD patterns revealed by R2 and BR rate in temperate and tropical maize lines. e Distribution differences of LD blocks between temperate and tropical maize lines. Green and red boxes indicate LD blocks (>Â 5Â kb) in temperate and tropical maize lines, respectively. NRTE: non-redundant transposable element; LD: linkage disequilibrium; BR: background recombinationBack to article page