Mitochondrial genomes of parasitic flatworms

Le, Thanh H., Blair, David, and McManus, Donald P. (2002) Mitochondrial genomes of parasitic flatworms. Trends in Parasitology, 18 (5). pp. 206-213.

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Abstract

Complete or near-complete mitochondrial genomes are now available for 11 species or strains of parasitic flatworms belonging to the Trematoda and the Cestoda. The organization of these genomes is not strikingly different from those of other eumetazoans, although one gene (atp8) commonly found in other phyla is absent from flatworms. The gene order in most flatworms has similarities to those seen in higher protostomes such as annelids. However, the gene order has been drastically altered in Schistosoma mansoni, which obscures this possible relationship. Among the sequenced taxa, base composition varies considerably, creating potential difficulties for phylogeny reconstruction. Long non-coding regions are present in all taxa, but these vary in length from only a few hundred to not, vert, similar10 000 nucleotides. Among Schistosoma spp., the long non-coding regions are rich in repeats and length variation among individuals is known. Data from mitochondrial genomes are valuable for studies on species identification, phylogenies and biogeography.

Until very recently, our knowledge of mitochondrial genomes in the parasitic flatworms was scanty. Now, 11 complete or near-complete mt genomes are available (details here summarised), and these data have been used in species identification, phylogenies and biogeography.

Item ID: 13692
Item Type: Article (Research - C1)
ISSN: 1471-4922
Date Deposited: 04 Dec 2010 11:26
FoR Codes: 06 BIOLOGICAL SCIENCES > 0608 Zoology > 060899 Zoology not elsewhere classified @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
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