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Figure 2 | BMC Evolutionary Biology

Figure 2

From: Transposable element distribution, abundance and role in genome size variation in the genus Oryza

Figure 2

Occurrence per single Mbp for the major classes of repeats in different Oryza genomes. Y-axis: the estimated number of occurrences calculated using the equation from Hawkins et al (2006) [9] and normalized to 1 Mbp. The confidence intervals, displayed as error bars, were calculated assuming a Poisson distribution of repeats in the genome. The mean length used in calculation for different repeats were as follows: Ty3-gypsy elements: 12 Kbp; Ty1-copia elements: 5.5 Kbp; others LTR-RTs not classified (LTR-retrotransposons): 8.75 Kbp; LINEs: 3.5 kbp; helitrons (complete autonomous): 12.8 Kbp; CACTA: 15.2 Kbp; hAT: 3.6 Kbp *In this case all the calculations are based on a rough estimate of the genome size of this species: the real value is unknown, we therefore used the value estimated for O. ridleyi [HHJJ; 1283 Mbp], which is also an allotetraploid species and shares the HH genome type with O. coarctata.

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