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Distribution of the Gypsy (in green) and Copia (in red) LTR-RE families along the 17 linkage groups (LGs) of the sunflower genome (line HanXRQ [42]). The distribution of a putative centromeric sequence ([58], in black) is also reported. Red arrows indicate the most probable centromere position of each LG, corresponding to the peaks of highest frequency of the putative centromeric sequence. The space of each LG is proportional to its length in nucleotides.
