@article {47345, title = {Chromosomal diversification in the flightless Western Mediterranean bushcricket genus Odontura (Orthoptera: Tettigoniidae: Phaneropterinae) inferred from molecular data}, journal = {Journal of Zoological Systematics and Evolutionary Research}, volume = {52}, year = {2014}, month = {Jan-05-2014}, pages = {109 - 118}, abstract = {

We used molecular characters to infer the phylogenetic position of the Western Mediterranean bushcricket genus Odontura and to trace its high karyotype diversity. Analysis of 1391 base pairs of two mitochondrial genes (COI and ND1) and one nuclear sequence (ITS2) was conducted. Phylogenetic topologies were estimated using maximum parsimony, maximum likelihood and likelihood-based Bayesian inference. The genus Odontura is a phylogenetic outlier in respect of all other European Phaneropterinae genera and has been proposed to have originated from a hitherto unknown ancestor. Our results support the monophyly of the genus Odontura and the recognition of two subgenera: Odontura and Odonturella. We found that both Sicilian taxa of the subgenus Odontura have a completely identical morphology and song patterns. Combining these results, we proposed that both should be treated as subspecies: O. (Odontura) stenoxypha stenoxypha and O. (O.) st. arcuata. Bioacoustic data also proved to support independent markers, with song characteristics reflecting the molecular topology. Mapping the karyotypic characters onto the phylogenetic tree allows a reconstruction of the directions and transitional stages of chromosome differentiation. The number of autosomes within the genus Odontura ranges from 26 to 30. In addition to the ancestral X0 sex determination mechanism, neo-XY and neo-X1X2Y sex chromosomes have evolved independently.

}, keywords = {bioacoustics, chromosome evolution, molecular phylogeny, Odontura, Phaneropterinae}, doi = {10.1111/jzs.2014.52.issue-210.1111/jzs.12046}, url = {http://doi.wiley.com/10.1111/jzs.2014.52.issue-2}, author = {Grzywacz, Beata and Klaus-Gerhard Heller and Arne W. Lehmann and Warcha{\l}owska-{\'S}liwa, El{\.z}bieta and Gerlind U.C. Lehmann} } @article {47334, title = {Biogeography, ecology, acoustics and chromosomes of East African Eurycorypha St{\r a}l species (Orthoptera, Phaneropterinae) with the description of new species}, journal = {Organisms Diversity \& Evolution}, volume = {13}, year = {2013}, month = {Jan-09-2013}, pages = {373 - 395}, abstract = {

Although Eurycorypha is the most species-rich Phaneropterinae genus in Africa, little is known about the distribution and the ecology of the species. In this study data on distribution, ecology, song and on chromosomes of some East African species are provided. The nymphs of some species are shown, famous for their ant-like appearance and behaviour. The male of E. punctipennis Chopard and three species of Eurycorypha are newly described. These are E. resonans n. sp. and E. combretoides n. sp. occurring in different habitats on Mount Kilimanjaro, and E. conclusa n. sp from forest habitats along the Tanzanian coast. Bioacoustically, the four recorded species are unusually divers, presenting non-resonant and resonant songs. As four Eurycorypha species occur syntopically on geological young Mount Kilimanjaro, the biogeographical pattern and possible speciation mechanisms in the genus Eurycorypha are discussed in context of the climatical history of eastern Africa.

}, keywords = {bioacoustics, Biogeography, chromosomes, ecology, Mount Kilimanjaro, new species, Orthoptera, Phaneropterinae, speciation, Tanzania}, issn = {1439-6092}, doi = {10.1007/s13127-012-0123-1}, url = {http://link.springer.com/10.1007/s13127-012-0123-1}, author = {Claudia Hemp and Klaus-Gerhard Heller and Warcha{\l}owska-{\'S}liwa, El{\.z}bieta and Grzywacz, Beata and Hemp, Andreas} }