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+[[!meta title="Gene duplications and the origins of vertebrate development."]]
+[[!tag Oikopleura]]
+
+Holland PW, Garcia-Fernàndez J, Williams NA, Sidow A.
+
+Dev Suppl. 1994:125-33.
+
+Gene duplications and the origins of vertebrate development.
+
+[[!pmid 7579513 desc="Attempt to clone Hox genes with degenerate primers only yielded one clone."]]
are activated by polyunsaturated aldehydes produced by diatoms
([[Torres-Águila and coll., 2018|biblio/30272001]]).
- _O. dioica_ has 83 homeobox genes, according to [[Edvardsen and coll., 2005|biblio/15649342]].
+ Illustrating how diverged are the sequences, earlier attempts to clone Hox genes yielded
+ only a single clone ([[Holland and coll. 1994|biblio/7579513]]).
- Southern blot analysis suggest the presence of a SCO-spondin gene in _O.
dioica_ ([[Gobron and coll., 1999|biblio/10197783]]).
- A single ortholog of _Brachyury_ (_TBXT_, or _T_) was cloned by [[Bassham