The relationship of Hammondia hammondi and Sarcocystis mucosa to other heteroxenous cyst-farming coccidia as inferred by phylogenetic analysis of the18S SSU ribosomal DNA sequence

Authors
Jenkins, MC Ellis, JT Liddell, S Ryce, C Munday, BL Morrison, DA Dubey, JP
Citation
Mc. Jenkins et al., The relationship of Hammondia hammondi and Sarcocystis mucosa to other heteroxenous cyst-farming coccidia as inferred by phylogenetic analysis of the18S SSU ribosomal DNA sequence, PARASITOL, 119, 1999, pp. 135-142
Citations number
43
Categorie Soggetti
Microbiology
Journal title
PARASITOLOGY
ISSN journal
00311820 → ACNP
Volume
119
Year of publication
1999
Part
2
Pages
135 - 142
Database
ISI
SICI code
0031-1820(199908)119:<135:TROHHA>2.0.ZU;2-7
Abstract
The complete sequence of the 18S small subunit (SSU) ribosomal DNA of Hammo ndia hammondi and Sarcocystis mucosa was obtained and compared to SSU rDNA sequences of Neospora caninum, Toxoplasma gondii, Besnoitia besnoiti, 2 spe cies of Frenkelia, 3 species of Isospora, and 13 species of Sarcocystis. An alyses showed that H. hammondi and T. gondii are monophyletic and that thes e taxa shared a common ancestor with N. caninum and B. besnoiti. The weight of evidence shows that S. mucosa, S. neurona, and Frenkelia species form a clade thereby supporting the conclusion that Sarcocystis is paraphyletic.