Revealing the secret lives of cryptic species: Examining the phylogenetic relationships of echinostome parasites in North America

2010 ◽  
Vol 55 (2) ◽  
pp. 611-620 ◽  
Author(s):  
Jillian T. Detwiler ◽  
David H. Bos ◽  
Dennis J. Minchella
Keyword(s):  
North America ◽  
Cryptic Species ◽  
Phylogenetic Relationships

scholarly journals Benchmarking DNA barcodes: an assessment using available primate sequences

Genome ◽  
2006 ◽  
Vol 49 (7) ◽  
pp. 851-854 ◽  
Author(s):  
Mehrdad Hajibabaei ◽  
Gregory AC Singer ◽  
Donal A Hickey
Keyword(s):  
New Species ◽  
Cryptic Species ◽  
Dna Barcoding ◽  
Species Identification ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Primate Species ◽  
Dna Barcodes ◽  
Global Biodiversity ◽  
Efficient Sequence

DNA barcoding has been recently promoted as a method for both assigning specimens to known species and for discovering new and cryptic species. Here we test both the potential and the limitations of DNA barcodes by analysing a group of well-studied organisms—the primates. Our results show that DNA barcodes provide enough information to efficiently identify and delineate primate species, but that they cannot reliably uncover many of the deeper phylogenetic relationships. Our conclusion is that these short DNA sequences do not contain enough information to build reliable molecular phylogenies or define new species, but that they can provide efficient sequence tags for assigning unknown specimens to known species. As such, DNA barcoding provides enormous potential for use in global biodiversity studies.Key words: DNA barcoding, species identification, primate, biodiversity.

Geographic range in Chthamalus along the west coast of North America

2005 ◽  
Vol 85 (2) ◽  
pp. 327-331 ◽  
Author(s):  
J.P. Wares ◽  
A.E. Castañeda
Keyword(s):  
North America ◽  
Cryptic Species ◽  
Genetic Markers ◽  
West Coast ◽  
Environmental Gradients ◽  
Geographic Range ◽  
The West ◽  
Barnacle Species ◽  
Range Overlap

Identification of the range boundaries and microgeographic distribution of cryptic species is greatly facilitated by the use of genetic markers. Here we characterize the geographic range overlap between two cryptic species, Chthamalus fissus and C. dalli, and show that as with other barnacle species, their distribution and abundance is probably dictated more by microhabitat characteristics and the presence of conspecifics than broader environmental gradients. We also show that C. dalli appears to be panmictic across the studied range.

scholarly journals An updated checklist of the European Butterflies (Lepidoptera, Papilionoidea)

ZooKeys ◽  
2018 ◽  
Vol 811 ◽  
pp. 9-45 ◽  
Author(s):  
Martin Wiemers ◽  
Emilio Balletto ◽  
Vlad Dincă ◽  
Zdenek Faltynek Fric ◽  
Gerardo Lamas ◽  
...  
Keyword(s):  
European Country ◽  
Cryptic Species ◽  
Phylogenetic Relationships ◽  
The Other ◽  
Ural Mountains ◽  
Species Status ◽  
Asian Species ◽  
Senior Synonym ◽  
Eastern Border ◽  
New Evidence

This paper presents an updated checklist of the butterflies of Europe, together with their original name combinations, and their occurrence status in each European country. According to this checklist, 496 species of the superfamily Papilionoidea occur in Europe. Changes in comparison with the last version (2.6.2) of Fauna Europaea are discussed. Compared to that version, 16 species are new additions, either due to cryptic species most of which have been discovered by molecular methods (13 cases) or due to discoveries of Asian species on the eastern border of the European territory in the Ural mountains (three cases). On the other hand, nine species had to be removed from the list, because they either do not occur in Europe or lost their species status due to new evidence. In addition, three species names had to be changed and 30 species changed their combination due to new evidence on phylogenetic relationships. Furthermore, minor corrections were applied to some authors’ names and years of publication. Finally, the namePolyommatusottomanusLefèbvre, 1831, which is threatened by its senior synonymLycaenalegeriFreyer, 1830, is declared anomen protectum, thereby conserving its name in the current combinationLycaenaottomana.

Phylogenetic relationships among Unionicola (Acari: Unionicolidae) mussel-mites of North America based on mitochondrial cytochrome oxidase I sequences

Zootaxa ◽  
2010 ◽  
Vol 2537 (1) ◽  
pp. 47 ◽  
Author(s):  
DALE D. EDWARDS ◽  
MALCOLM F. VIDRINE ◽  
BRIAN R. ERNSTING
Keyword(s):  
North America ◽  
Cytochrome Oxidase ◽  
Phylogenetic Relationships ◽  
Sequence Data ◽  
Bootstrap Support ◽  
Cox1 Gene ◽  
Symbiotic Association ◽  
Gene Trees ◽  
Molecular Sequence Data ◽  
Molecular Sequence

Water mites of the genus Unionicola Haldeman, 1842 are common symbionts of molluscs, living on the gills or mantle and foot of their hosts and using these tissues as sites of oviposition. Phylogenetic relationships among species that comprise the genus are poorly understood and what is known has been based on a limited number of morphological and life history characters or molecular sequence data using closely-related taxa. The present study uses sequence data from the cytochrome oxidase subunit I (cox1) gene (664 bp) to reconstruct evolutionary relationships among representative species of North American Unionicola from eight subgenera that occur in symbiotic association with freshwater mussels. Maximum parsimony and maximum likelihood analysis yielded trees with similar topologies, and most of the branches have moderate to high bootstrap support. The topologies of these gene trees are mostly congruent with a previously published morphologically-derived tree. Specifically, the gene trees support monophyly among mites from subgenera that occur in association with the gill tissues of host mussels. The molecular trees of Unionicola mites generated by this study must, however, be interpreted with caution, given that the analysis is based exclusively on Unionicola subgenera from North America. A more robust phylogeny of Unionicola mussel-mites will require the addition of molecular sequence data from taxa outside of North America.

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