Mitochondrial DNA and phylogeography of the grasshopper Trimerotropis pallidipennis in relation to clinal distribution of chromosome polymorphisms

Article Abstract:

Trimerotropis pallidipennis is an American grasshopper. Colonization of southern latitudes was by North American grasshoppers with basic chromosome arrangements, along the Andean dry lands of South America. In Argentina, the arrangements are correlated with geographical and climatic variables. Mitochondrial DNA is used as a tool for determining the species history. The estimations of nucleotide divergence between hypothetical ancestral haplotype and other molecules show that T. pallidipennis haplotypes started diverging from each other about 3 mill years ago.

Environmental aspects, Natural selection

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mtDNA phylogeography and postglacial patterns of subdivision in the meadow grasshopper Chorthippus parallelus

Article Abstract:

In the flightless meadow grasshopper Chorthippus parallelus mtDNA phylogeography and postglacial patterns of subdivision are discussed based on investigation of its intraspecific genetic structure using a 300bp part of the mitochondrial cytochrome oxidase subunit I (COI (ital)) gene. Interpretation of mitochondrial sequence divergence levels is done in terms of extent ad age of separation with results compared to those from a recent survey of an anonymous nuclear DNA marker in the same species.

United Kingdom, Statistical Data Included, Usage, Cladistic analysis, Paleoclimatology, Paleogeography, Holocene paleogeography

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So close and so different: Comparative phylogeography of two small mammal species, the Yellow-necked fieldmouse (Apodemus flavicollis) and the Woodmouse (Apodemus sylvaticus) in the Western Palearctic region

Article Abstract:

The phylogeographic structures of two European rodents, the Yellow-necked fieldmouse (Apodemus flavicollis) and the Wood mouse (Apodemus sylvaticus) were compared on the basis of mitochondrial DNA cytochrome b(mt DNA cyt b). The results indicated that the two species survived in different ways through the Quaternary glaciations, and suggested phylogeographic distinctiveness, a general feature of European species.

Science & research, Cytochrome b, Wood mice

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