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+[[!meta title="Morphological identity of a taxonomically unassigned cytochrome c oxidase subunit I sequence from stomach contents of juvenile chum salmon determined using polymerase chain reaction"]]
+[[!tag Oikopleura]]
+
+Sakiko Orui Sakaguchi, Tetsuro Ikuta, Gen Ogawa, Kodai Yamane, Naonobu Shiga, Hiroshi Kitazato, Katsunori Fujikura, Kiyotaka Takishita.
+
+Fish Sci (2017) 83: 757. https://doi.org/10.1007/s12562-017-1106-0
+
+Morphological identity of a taxonomically unassigned cytochrome c oxidase subunit I sequence from stomach contents of juvenile chum salmon determined using polymerase chain reaction
+
+[[!doi 10.1007/s12562-017-1106-0 desc="Finds that the COI sequence AY116609 and the 18S sequence AB013014 are probably mis-labled."]]
in human. In other tunicates, all mitochondrial genes are on the same DNA strand
and 24 tRNAs are present, instead of 22 in other chordates (reviewed by [[Gissi and coll.,
2008|biblio/18612321]]).
+ - The mitochondrial COI sequence AY116609 and the 18S rRNA sequence AB013014
+ in Genbank are probably a contamination and a misidentification, respectively
+ ([[Sakaguchi and coll., 2017|biblio/10.1007_s12562-017-1106-0]]).
- Analysis of sex-linked markers supports genetic sex determination with male heterogamety –
that is: X chromosomes for females and Y for males. ([[Denoeud et al., 2010|biblio/21097902]])
- The major spliceosome is hypothethised to have evolved