tag:blogger.com,1999:blog-3643556495084083743.post6349957682219222651..comments2022-12-09T08:52:54.666-08:00Comments on Skeptic Wonder: Sunday Protist -- Auranticordis: "Orange Heart"Psi Wavefunctionhttp://www.blogger.com/profile/10829712736757471647noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-3643556495084083743.post-90867371669030232362010-02-01T11:04:31.341-08:002010-02-01T11:04:31.341-08:00That thought crossed my mind too, but the Paulinel...That thought crossed my mind too, but the <i>Paulinella</i> endosymbionts are quite different from these in ultrastructure. Apparently they're also chemically different, further implying the origin is a different cyanobacterium. While Cercozoan phylogeny isn't particularly well-resolved at the moment, <i>Paulinella</i> is a Euglyphid, and this thing is quite different from them. Of course, that doesn't mean very much (eg. Stephanopogon superficially looks little like conventional Heterolobosea), but it's likely that they're quite distant, at least not closer to Paulinella than other Euglyphids.<br /><br />So it seems they would be separate endosymbiotic events. The different plastid structure points that way anyway...Psi Wavefunctionhttps://www.blogger.com/profile/10829712736757471647noreply@blogger.comtag:blogger.com,1999:blog-3643556495084083743.post-85159454436891988682010-02-01T10:54:20.252-08:002010-02-01T10:54:20.252-08:00It's not closely related to Paulinella, is it?...It's not closely related to <i>Paulinella</i>, is it? No chance that it could be not a new endosymbiotic event, but a new species derived from the same event as <i>Paulinella</i>?Christopher Taylorhttps://www.blogger.com/profile/11075565866351612441noreply@blogger.com