<p>The figure shows the estimated numbers of lincRNA genes in human and mouse, and the estimate for the size of the set of orthologous lincRNAs. The circles show the estimated sizes of the human and mouse lincRNomes (<i>Nh</i> and <i>Nm</i>, respectively), and the overlap shows the estimated number of orthologous lincRNAs (<i>Nb</i>). For each of these values, the analytically determined 95% confidence intervals are indicated; bootstrap analysis yielded more narrow confidence intervals (see <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1002917#s4" target="_blank">Methods</a> for details). The small, filled circles (blue and green for human and mouse, respectively) show the validated sets of lincRNAs (<i>Lh</i> and <i>Lm</i>, respectively), and the overlap area between these circles shows orthologous expressed, validated lincRNAs (<i>Kb</i>).</p
