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diff --git a/biblio/10331260.mdwn b/biblio/10331260.mdwn
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+[[!meta title="Evolutionary instability of operon structures disclosed by sequence comparisons of complete microbial genomes."]]
+[[!tag operon]]
+
+Itoh T, Takemoto K, Mori H, Gojobori T.
+
+Mol Biol Evol. 1999 Mar;16(3):332-46. doi:10.1093/oxfordjournals.molbev.a026114
+
+Evolutionary instability of operon structures disclosed by sequence comparisons of complete microbial genomes.
+
+[[!pmid 10331260 desc="Search accross prokaryotes, archea and eukaryotes.  No operon conservation between bacteria and yeast, except perhaps _gal_.  Many operons destroyed in bacteria, although some very conserved ones remain (for instance for ribosomal proteins).  Proposes a partimonious way to estimate operon creation and destruction."]]

diff --git a/biblio/35658077.mdwn b/biblio/35658077.mdwn
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+[[!meta title="Repeated translocation of a supergene underlying rapid sex chromosome turnover in Takifugu pufferfish."]]
+[[!tag chromosome sex fish]]
+
+Kabir A, Ieda R, Hosoya S, Fujikawa D, Atsumi K, Tajima S, Nozawa A, Koyama T, Hirase S, Nakamura O, Kadota M, Nishimura O, Kuraku S, Nakamura Y, Kobayashi H, Toyoda A, Tasumi S, Kikuchi K.
+
+Proc Natl Acad Sci U S A. 2022 Jun 7;119(23):e2121469119. doi:10.1073/pnas.2121469119
+
+Repeated translocation of a supergene underlying rapid sex chromosome turnover in Takifugu pufferfish.
+
+[[!pmid 35658077 desc="The genome of the green puffer (Takifugu alboplumbeus or T. niphobles) was assembled.  SNP analysis of multiple species showed that in three fugu species (T. niphobles, T. snyderi and T. vermicularis), the sex determination locus is not _Amrh2_ anymore (like it is in T. rubripes), but a new supergene containing _GsdfY_.  This supergene appears to have moved to a new autosome more than once in the evolutionary history of these species."]]

diff --git a/tags/trans-splicing.mdwn b/tags/trans-splicing.mdwn
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 [[!meta title="pages tagged trans-splicing"]]
 
+_Also check the [[operon]] tag..._
+
 Trans-spplicing of a splice leader from a nematode and a trypanosome was shown
 to be possible in COS cells and HeLa cell extracts by [[Bruzik and Maniatis, 1992|biblio/1465136]].