c2e552afa0d0574db2c2d93b51cd87b6484c4ddb
jnavarr5
  Fri Jun 13 15:59:17 2025 -0700
Adding links to the papers mentioned in the description for each track, refs #35703

diff --git src/hg/makeDb/trackDb/human/hg38/unusualcons.html src/hg/makeDb/trackDb/human/hg38/unusualcons.html
index 746e69e7aba..0f7814454e3 100644
--- src/hg/makeDb/trackDb/human/hg38/unusualcons.html
+++ src/hg/makeDb/trackDb/human/hg38/unusualcons.html
@@ -1,54 +1,69 @@
 <h2>Description</h2>
 <p>These tracks show regions of unusual conservation in human relative to other organisms:</p>
 
 <ul>
   <li><b>Ultraconserved elements (UCE aka ultras):</b><br>
-    Elements with 100% identity in human/mouse/rat alignments, from (Bejerano et al, Science 2004). 
-    Many of these were tested in mice, see the VISTA enhancers track in the Regulation track group.
+    Elements with 100% identity in human/mouse/rat alignments. Many of these were tested in mice,
+    see the <a href="/cgi-bin/hgTrackUi?db=hg38&g=vistaEnhancersBb">VISTA enhancers</a> track in
+    the Regulation track group. (<a href="https://www.science.org/doi/10.1126/science.1098119"
+    target="_blank">Bejerano et al, Science 2004</a>)
   <li><b>Human Accelerated Regions (HARs):</b><br>
-      2649 regions conserved throughout vertebrate evolution but strikingly different in humans (Pollard et al, Nature 2006).
-      This extended list was collected by the Katie Pollard lab from various publications (Capra et al. PTRSB 2013).
+    2,649 regions conserved throughout vertebrate evolution but strikingly different in humans
+    (<a href="https://www.nature.com/articles/nature05113" target="_blank">Pollard et al, Nature
+    2006</a>).
+    This extended list was collected by the Katie Pollard lab from various publications
+    (<a href="https://royalsocietypublishing.org/doi/full/10.1098/rstb.2013.0025"
+    target="_blank">Capra et al. PTRSB 2013</a>).
   <li><b>High-confidence Zoonomia Human Accelerated Regions (HARs):</b><br>
-      312 HARs from the Zoonomia Alignments (Keough et al. Science, 2023)
+    312 HARs from the Zoonomia Alignments (<a href="https://www.science.org/doi/abs/10.1126/science.abm1696"
+    target="_blank">Keough et al. Science, 2023</a>)
   <li><b>Human Ancestor Quickly Evolved Regions (HAQERs):</b><br>
-      1580 HAQERs from (Mangan Cell 2023)
+    1,580 HAQERs from (<a href="https://www.cell.com/cell/fulltext/S0092-8674(22)01358-7"
+    target="_blank">Mangan Cell 2023</a>)
   <li><b>Human-specific long deletions (hCondels) between human, macaque and chimpanzee:</b><br>
-      583 regions (one not lifted) present in macaque and chimp, but no in humans. (McLean et al Nature 2011)
-      Since these are sequences absent from the human genome, we show the 2bp around the deletion.
+    583 regions (one not lifted) present in macaque and chimp, but no in humans. Since these are
+    sequences absent from the human genome, we show the 2bp around the deletion.
+    (<a href="https://www.nature.com/articles/nature09774"
+    target="_blank">McLean et al Nature 2011</a>)
   <li><b>Short hCondels &lt; 40bp in primates and up to 11 vertebrates:</b><br>
-    43588 regions deleted in human but present in 11 vertebrates or primates from (Xue et al, Science 2023). These regions were tested 
-    in an MPRA screen, the MPRA results are in the track and shown when clicking an element. Since the track is showing MPRA results
-    and the position of deletions, what is shown in the track are regions +-100bp around the deletion site on the human genome, 
-    not just the two basepairs flanking the site of the deletion.
+    43,588 regions deleted in human but present in 11 vertebrates or primates. These regions were
+    tested in an MPRA screen, the MPRA results are in the track and shown when clicking an element.
+    Since the track is showing MPRA results and the position of deletions, what is shown in the
+    track are regions &plusmn;100bp around the deletion site on the human genome, not just the two
+    basepairs flanking the site of the deletion. (<a href="https://www.science.org/doi/abs/10.1126/science.abn2253"
+    target="_blank">Xue et al, Science 2023</a>)
   <li><b>Zoonomia Ultraconserved elements (zooUCEs):</b><br>
-    4552 Ultraconserved elements identified from the 241-mammals genome alignment. All regions &gt;=20bp where
-    at least 235 species aligned and all aligning species are fixed for the same base at every position. 20-190 bp.
+    4,552 Ultraconserved elements identified from the 241-mammals genome alignment. All regions
+    &gt;=20bp where at least 235 species aligned and all aligning species are fixed for the same
+    base at every position. 20-190 bp.
   <li><b>Zoonomia: Runs of contiguous constraint (RoCCs):</b><br>
     All genomic regions where contiguous bases have phyloP score &gt; 2.270 (5% FDR) and are
     therefore under high constraint. Regions separated by a single base with phyloP &lt; 2.270 were
     merged. N = 595,535; 20-1,359 bp. 
   <li><b>Zoonomia: Unannotated Intergenic Constrained Regions (UNICORNs):</b><br>
     Non-coding regions of the genome that lack annotation in ENCODE3 but show high evolutionary
     constraint, suggesting function. Positions with phyloP &gt; 2.270 (5% FDR) within 5bp of each
     other are grouped into UNICORNs. N = 424,180; 11 - 1,325 bp.
-  <li><b>UCNEBase: Elements conserved with chicken from (Dimitrieva and Bucher, NAR 2013):</b><br>
-      non-coding elements &gt; 200 bp long and 95% conserved between human and chicken
+  <li><b>UCNEBase: Elements conserved with chicken:</b><br>
+    Non-coding elements &gt; 200 bp long and 95% conserved between human and chicken.
+    (<a href="https://academic.oup.com/nar/article/41/D1/D101/1057253"
+    target="_blank">Dimitrieva and Bucher, NAR 2013</a>)
   <li><b>UCNEBase: Elements paralogous to others:</b><br>
-      alignable with E&lt;10<sup>-4</sup> to other chicken-conserved elements
+    Alignable with E&lt;10<sup>-4</sup> to other chicken-conserved elements.
   <li><b>UCNEBase UGRBs: Ultra-conserved genomic regulatory blocks:</b><br>
-       chicken-conserved elements within 0.5 Mb in both human and chicken
+    Chicken-conserved elements within 0.5 Mb in both human and chicken.
 </ul>
      
 <table class="stdTbl">
     <tr>
         <th>Track</th>
         <th>Count</th>
         <th>Coverage in bp</th>
     </tr>
     <tr>
         <td>Ultraconserved</td>
         <td>481</td>
         <td>126,007</td>
     </tr>
     <tr>
         <td>UCNEBase Chicken</td>