onr:"swepub:oai:gup.ub.gu.se/122102"
Search: onr:"swepub:oai:gup.ub.gu.se/122102" > Molecular phylogeny...
- 1 of 1
- Previous record
- Next record
- To hitlist
Molecular phylogeny of Nearctic species of Rhynchelmis (Annelida)
-
- Zhou, Hong (author)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
- Fend, Steven V (author)
- Gustafson, Daniel L (author)
- show more...
- show less...
- (creator_code:org_t)
- 2010-04-20
- 2010
- English.
- In: Zoologica Scripta. - : Wiley. - 0300-3256 .- 1463-6409. ; 39, s. 378-393
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- The Nearctic species of Rhynchelmis (Clitellata, Lumbriculidae) are known primarily from cool-water habitats in western North America. Their taxonomy has so far been based on limited collections from isolated localities, using intuitive assessment of morphological characters. This approach has proved unsatisfactory when additional populations of closely related species were sampled and scrutinized for incorporation in the present classification. Therefore, in this study, mitochondrial (cytochrome c oxidase subunit I and 16S rDNA) and nuclear internal transcriber spacer (ITS rDNA) genes were analysed as phylogenetic markers of Nearctic Rhynchelmis species. A combined approach with all the three gene regions provided a better resolution than any of the individual genes by itself. The genes demonstrated monophyly of all major groupings proposed on the morphological basis. Within the Rhynchelmis yakimorum complex, however, the genetic data and distribution suggested that two clades initially referred to as a ‘R. yakimorum variant 1’, one from the lower Snake River drainage in Idaho and one from southern coastal Oregon, might represent two separate species. On the other hand, the sympatric distribution and low genetic distance between Rhynchelmis gustafsoni and a form tentatively identified as ‘R. cf. yakimorum’ (both collected in eastern Idaho) indicated conspecific status. This study also showed that the cytochrome c oxidase subunit I (COI) gene, which may be informative of recent and on-going speciation and useful for species discrimination (as a DNA barcode), is less suitable as a single molecular marker for phylogenetic inference. Regardless of whether one deals with very closely related species (such as those of the yakimorum complex), with taxa with a wide and disjunct distribution (such as Rhynchelmis rostrata), or with more distantly related species, COI data should be supplemented by other genetic markers as well as morphological and biogeographical information.
Subject headings
- NATURVETENSKAP -- Biologi -- Biologisk systematik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biological Systematics (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Zoologica Scripta (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Zhou, Hong
- Fend, Steven V
- Gustafson, Danie ...
- De Wit, Pierre, ...
- Erséus, Christer ...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Biological Scien ...
- and Biological Syste ...
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Biological Scien ...
- Articles in the publication
- Zoologica Script ...
- By the university
- University of Gothenburg
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
