From: Charles Plessy Date: Fri, 27 Apr 2018 02:08:58 +0000 (+0900) Subject: More background. X-Git-Url: https://source.charles.plessy.org/?a=commitdiff_plain;h=2cb9fa6b7c3dfd05785362a5d6bb781476f80125;p=source.git More background. --- diff --git a/tags/Oikopleura.mdwn b/tags/Oikopleura.mdwn index 18545b27..8342708c 100644 --- a/tags/Oikopleura.mdwn +++ b/tags/Oikopleura.mdwn @@ -3,12 +3,14 @@ Oikopleura ========== -_Oikopleura dioica_ is a tunicate plankton. Thus, it belongs to the same -"chordate" phylum as us. Its genome is very small, as each cell only contains -70 fg of DNA ([Animal Genome Size Database](http://www.genomesize.com/result_species.php?id=1308)). -Each animal secretes a mucus "house" that is used for feeding (and perhaps -defending). The main house proteins are called _oikosins_ and half or them -are unique to Oikopleura and related animals ("_Appendicularia_"). +_Oikopleura dioica_ is a tunicate larvacean (synonym: urochordate +appendicularian) plankton. Thus, it belongs to the same "chordate" phylum as +us. As the name indicates, it is the only _dioecious_ species of _Oikopleura_ +(that is: male and female organisms are distinct). Its reproduction is +_semelparous_: the animals die afer releasing its gametes. Each animal +secretes a mucus "house" that is used for feeding (and perhaps defending). The +main house proteins are called _oikosins_ and half or them are unique to +Oikopleura and related animals ("_Appendicularia_"). Some links: @@ -20,6 +22,7 @@ Genome ------ - 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)). - 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]]).