Fig. 1From: Assessing the Extent of Substitution Rate Variation of Retrotransposon Long Terminal Repeat Sequences in Oryza sativa and Oryza glaberrimaDescription of different kinds of orthologous tracts used for analysis. a Complete orthologous retrotransposons: LTR pairs were extracted along with two nearby genomic regions (NRRs) having a length similar to that of the LTR (λ bp). b Truncated orthologous retroelements: only the LTR was extracted plus a nearby genomic region (NRR) of similar length (λ bp). c Solo-LTRs: the LTR was extracted plus an overall similar amount of genomic sequence represented by two genomic tracts (NRR) flanking both sLTR ends (λ/2 bp each). Other details are in the text.Back to article page