Illustration from Scientific Research

Schematic of the ePAR Y chromosome as inFigure 1together with the structures of the 11 characterized UKB ePAR LTR6B junctions. Fixed differences between the X-LTR6B and YPAR-LTR6B based on 1000 Genomes Project data22are indicated by the yellow stars. Junction fragments vary in overall size as a consequence of two variable length regions, as indicated by the arrows above the structures ([CCACAC] at the distal site and [TTACAAGGTG] at the more proximal site). These are the longest variants at each site and are represented by black dots within the structures; alternative length variants are shown in the corresponding positions (black text). Other distinguishing sites of variation are shown in white text. Where an inference can be made as to the origin of a particular segment of each junctional LTR6B element, it is shown as a red (X) or blue (YPAR) bar and gray otherwise. The overall length of junction sequence is indicated on the right.

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