=== Options ===
* `-f=<first>` : first gene tree to analyze (0-based index)
* `-l=<last>` : last gene tree to analyze (0-based index)
- * -r=<re-rooting> : re-rooting method for gene trees, possible values or 'none', 'midpoint', or 'outgroup' (default: by minizming duplications)
- * -o=<outgroup> : for rooting by outgroup, name of outgroup (external gene tree node)
- * -b : to use SDIR instead of GSDIR (faster, but non-binary species trees are disallowed)
+ * `-r=<re-rooting>` : re-rooting method for gene trees, possible values or 'none', 'midpoint', or 'outgroup' (default: by minizming duplications)
+ * `-o=<outgroup>` : for rooting by outgroup, name of outgroup (external gene tree node)
+ * `-b` : to use SDIR instead of GSDIR (faster, but non-binary species trees are disallowed)
==== Gene trees ====