21112814
not annotated - annotated - LINNAEUS only
"Slime molds" among the Tubulinea (Amoebozoa): molecular systematics and taxonomy of Copromyxa.
Copromyxa protea is a dung-inhabiting amoeboid organism that aggregates to form simple macroscopic fruiting structures, sorocarps, which are composed of a single cell type. In a recent effort to find the phylogenetic positions of the less well-known sorocarpic protists considered to be "cellular slime molds," or aggregatively fruiting amoebae, we isolated C. protea and sequenced the nuclear-encoded small subunit ribosomal RNA gene from four samples collected from cattle farms in the central USA. Phylogenetic analyses of these data place C. protea in the eukaryotic supergroup Amoebozoa together with the Tubulinea, in which there has been no previous report of an aggregative fruiting habit. This is consistent with the morphology of the trophozoites. In fact, Copromyxa protea is found to be very closely related to Hartmannella cantabrigiensis and to a since lost amoeba isolate, Hartmannella sp. 4/3Da/10. This new grouping of Copromyxa+H. cantabrigiensis is sister to Glaeseria, which together are sister to the Amoebidae (Amoeba+Chaos). We suggest renaming, H. cantabrigiensis as C. cantabrigiensis and designate isolate 4/3Da/10 as C. protea. Future work is needed to see if these newly assigned members of the genus Copromyxa also show evidence of an ability to fruit.
Ann file
T1 Species 108 124 Copromyxa protea
N1 Reference T1 Taxonomy:931554
T2 Species 476 485 C. protea
N2 Reference T2 Taxonomy:931554
T3 Species 586 592 cattle
N3 Reference T3 Taxonomy:9913
T4 Species 661 670 C. protea
N4 Reference T4 Taxonomy:931554
T5 Species 885 901 Copromyxa protea
N5 Reference T5 Taxonomy:931554
T6 Species 941 969 Hartmannella cantabrigiensis
N6 Reference T6 Taxonomy:239731
T7 Species 1006 1031 Hartmannella sp. 4/3Da/10
N7 Reference T7 Taxonomy:303301
T8 Species 1064 1082 H. cantabrigiensis
N8 Reference T8 Taxonomy:239731
T9 Species 1209 1227 C. cantabrigiensis
N9 Reference T9 Taxonomy:239731
T10 Species 1262 1271 C. protea
N10 Reference T10 Taxonomy:303301
T11 Species 1187 1205 H. cantabrigiensis