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New S pecies of I nsect T rypanosomatids from C osta R ica and the P roposal for a N ew S ubfamily within the T rypanosomatidae
Author(s) -
Jirků Milan,
Yurchenko Vyacheslav Y.,
Lukeš Julius,
Maslov Dmitri A.
Publication year - 2012
Publication title -
journal of eukaryotic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 1066-5234
DOI - 10.1111/j.1550-7408.2012.00636.x
Subject(s) - biology , subfamily , phylogenetic tree , clade , ribosomal rna , phylogenetics , gene , genetics , evolutionary biology
Several new species of trypanosomatids ( E uglenozoa, K inetoplastea, T rypanosomatidae), isolated from the intestines of N eotropical insects ( H eteroptera), were genotyped on the basis of spliced leader RNA , and also defined phylogenetically using gene sequences of small subunit ribosomal RNA and glycosomal glyceraldehyde phosphate dehydrogenase. The taxonomic descriptions also included characterization using morphometry and electron microscopy. Our phylogenetic analyses placed the new species within the clade, previously designated “ SE ” for “ S lowly E volving” sequences of ribosomal RNA genes, a clade that also includes numerous monoxenous parasites of insects from the genera C rithidia , L eptomonas , and W allaceina, as well as the dixenous genus L eishmania . Based on the high phylogenetic support for this clade, which is consistently recovered in all recent phylogenetic reconstructions, a proposal is put forward to recognize this natural taxon as a new subfamily, L eishmaniinae, within the family T rypanosomatidae.