1,721,407 research outputs found
François Delsarte, fonte d'ispirazione per l'arte scenica del Novecento
No full textDopo aver delineato per punti essenziali il metodo d’arte attorica concepito da François Delsarte, l’articolo lo confronta con le pratiche di grandi coreografi e registi dell’avanguardia storica primonovecentesca, sottolineandone le varianti e, soprattutto, le costanti. L’influenza di Delsarte sulla danza e sul teatro più innovativo dei primi decenni del XX secolo (negli Stati Uniti, in Germania, in Russia e in Inghilterra) si rivela estremamente rilevante
Fondamenti del pensiero delsartiano: fra memoria e poetica teatrale
Full text linkL'articolo si occupa del concetto di memoria nel pensiero di François Delsarte
Primi appunti per un progetto di edizione critica coreica
Full text linkL'intervento affronta gli snodi fondamentali – di ordine pratico e di natura metodologica – relativi alla realizzazione di un’edizione critica coreica, che serviranno, negli anni a venire, a stenderne concretamente una
Low biochemical variability in European fallow deer (Dama dama): natural bottlenecks and the effects of domestication
No full textConservation genomics of wolves: the global impact of RK Wayne’s research
Full text linkRK Wayne has arguably been the most influential geneticist of canids, famously promoting the conservation of wolves in his homeland, the U.S.. His influence has been felt in other countries and regions outside the contiguous U.S., where he inspired others, also including former graduate students and research fellows of his, to use modern molecular techniques to examine the evolutionary biology of canids to inform the conservation and management of wolves. In this review, we focus on the implications of Wayne’s work on wolves outside the U.S. He envisioned a clear future for wolf conservation research, involving the study of wolves’ ecological and genetic diversity, and the description of ecotypes requiring conservation. He also documented widespread hybridization among canids and introgression of DNA from domestic dogs to wolves, a process that started dozens of thousands of years ago. His work therefore calls for innovative studies, such as examining the potential fitness benefits of introgression. Inspired by his results, for example on the purging of deleterious alleles in small populations, wolf researchers should use novel molecular tools to challenge other conservation genetics paradigms. Overall, RK Wayne’s work constitutes a call for answers, which as scientists or citizens concerned with conservation matters, we are obliged to address, as we contribute to monitoring and maintaining biodiversity during our period of dramatic transformations of the biospher
Evolutionary history of the genus Sus inferred from cytochrome b sequences
No full textThe systematic status of species belonging to the genus Sus has been a matter of debate for decades (Groves, 1981). According to a recent review of its taxonomy, there are a total of 7 living species (Sus scrofa, Sus salvanius, Sus barbatus, Sus verrucosus, Sus celebensis, Sus philippensis, Sus cebifrons) and approximately 22 subspecies (Groves and Grubb, 1993), to which one recently recognized species, Sus bucculentus (Groves et al., 1997) and many new subspecies (Groves, 1997) should be added.
South-East Asia (SEA) may be considered the homeland of the genus, as 6 out of the 8 species are endemic to the area, the only exception being the pygmy hog (S. salvanius), nowadays present only in the north of India, and S. scrofa, which is distributed worldwide (and not limited to SEA).
In particular, the relationship between SEA species was investigated, but the evidence presented until now is still not conclusive. Morphological analyses point toward the identification of two main lineages, one leading to scrofa/celebensis/philippensis and the other to barbatus/verrucosus (Groves, 1997), but molecular evidence does not support the same grouping, but merges scrofa, barbatus and verrucosus (Lucchini et al., 2005). Recent findings have further complicated this issue rather than solving it, highlighting a substantial level of polyphyly among some of these species (see Larson et al., 2005).
There is also great uncertainty about the temporal scale of Sus evolution, mainly because of a general lack of representative fossil records. For example, the origin of the genus probably dates back to near the Miocene/Pliocene boundary, around 5 Mya1 (Randi et al., 1996), but its divergence from its closest genus, Phacochoerus, based only on molecular data, ranges from 5 to 15 Mya (Randi et al., 1996). This great uncertainty also characterizes estimates about the separation between European and Asian lineages of S. scrofa, spanning from 56,000 (Kim et al., 2002) to 500,000 years (Giuffra et al., 2000), depending on the marker and mutation rate used.
The major aim of the present study was to provide a more comprehensive description of the timing of evolution of the genus Sus and of the phylogenetic relationships among its various species. We thus sequenced mitochondrial cytochrome b from some specimens belonging to S. scrofa, S. celebensis and S. barbatus. This gene was selected as it was the most represented marker available for Sus in the GenBank. We further tested the performance of the cytochrome b as a molecular barcode, in order to check its ability to recognize potential hybrid populations such as that inhabiting New Guinea, proposed to be a cross between S. celebensis and S. Scrofa (Groves, 1981; but see Larson et al., 2005, for a different opinion)
Electrophoretic polymorphism of erytrocyte leucine aminopeptidase in the wild boar, Sus scrofa
No full textThe systematics of some italian populations of wild boar (Sus scrofa L.). A craniometric and electrophoretic analysis
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