- Size estimated to 72 ± 13 Mb (min 32.6~65 Mb) by [[Seo et al, 2001|biblio/11752568]].
- Each cell only contains 70 fg of DNA ([Animal Genome Size Database](http://www.genomesize.com/result_species.php?id=1308)).
+ - “No signal of synteny conservation is detected between _Oikopleura_ and _Ciona
+ intestinalis_. (...) _Oikopleura_ showed a local gene order that is
+ indistinguishable from random for distances smaller than 30 genes and a modest
+ level of conserved synteny at larger distances.” ([[Denoeud et al.,
+ 2010|biblio/21097902]])
- CYP1 family genes and their regulator AhR are not detectable ([[Yadetie et al, 2012|biblio/22300585]]).
- ~80 "house proteins" have been identified and more than half lack similarity
to known proteins ([[Hosp et al., 2012|biblio/22792236]]).
+ - Only a partial mitochondrial genome was reconstituted in [[Denoeud et al.,
+ 2010|biblio/21097902]], due to cloning and sequencing difficulties that may
+ have been caused by oligo-dT stretches. A/T-rich codons are more frequent than
+ in human.
Transcriptome
SL and that 42% of SL transcripts are monocistronic ([[Danks et al., 2015|biblio/25525214]]).
- A `TCTAGA` promoter element is found in 73.5% of the non-trans-spliced genes detected with
CAGE in testis ([[Danks et al, 2018|biblio/29482522]]).
- - Introns are subjected to a large turnover: many ancestral introns are lost, and many
- new species-specific introns found ([[Edvarsen et al., 2004|biblio/15638456]]).
+ - Introns are very small (peak at 47 base pairs, 2.4% > 1 kb) [[Denoeud et
+ al., 2010|biblio/21097902]] and subjected to a large turnover: many ancestral
+ introns are lost, and many new species-specific introns found ([[Edvarsen et
+ al., 2004|biblio/15638456]]). Introns are gained by insertion of transposon-like elements and
+ by reverse splicing, ([[Denoeud et al., 2010|biblio/21097902]]).
Tools