Fatal combined infection with canine distemper virus and orthopoxvirus in a group of Asian marmots (Marmota caudata)

A fatal combined infection with canine distemper virus (CDV) and orthopoxvirus (OPXV) in Asian marmots (Marmota caudata) is reported in this article. A total of 7 Asian marmots from a small zoological garden in Switzerland were found dead in hibernation during a routine check in the winter of 2011. The marmots died in February 2011. No clinical signs of disease were observed at any time. The viruses were detected in all individuals for which the tissues were available (n = 3). Detection of the viruses was performed by reverse transcription polymerase chain reaction. The most consistent gross lesion was a neck and thorax edema. A necrotizing pharyngitis and a multifocal necrotizing pneumonia were observed histologically. Numerous large intracytoplasmic eosinophilic inclusions were seen in the epithelial cells of the pharynx, of the airways, and in the skin keratinocytes. Brain lesions were limited to mild multifocal gliosis. Phylogenetic analysis revealed that the marmot CDV strain was closely related to the clusters of CDVs detected in Switzerland in wild carnivores during a local outbreak in 2002 and the 2009-2010 nationwide epidemic, suggesting a spillover of this virus from wildlife. The OPXV was most closely related to a strain of cowpoxvirus, a poxvirus species considered endemic in Europe. This is the first reported instance of CDV infection in a rodent species and of a combined CDV and OPXV infection.

East Asian ethnolinguistic phylogeography

A polyphyletic understanding of Asian linguistic diversity was first propagated in 1823. Since 1901, various scholars have proposed larger linguistic phyla uniting two or more recognised Asian language families. The most recent proposal in this tradition, Starosta’s 2001 East Asian phylum, comprising the Trans-Himalayan, Hmong-Mien, Austroasiatic, Austronesian and Kradai language families, is reassessed in light of linguistic and non-linguistic evidence. Ethnolinguistically informed inferences based on Asian Y chromosomal phylogeography lead to a reconstruction of various episodes of ethnolinguistic prehistory which lie beyond the linguistic event horizon, i.e. at a time depth empirically inaccessible to historical linguistics. The Father Tongue correlation in population genetics, the evidence for refugia during the Last Glacial Maximum and the hypothesis of language families having arisen as the result of demographic bottlenecks in prehistory are shown to be crucial to an understanding of the ethnogenesis of East Asian linguistic phyla. The prehistory of several neighbouring Asian language families is discussed, and the Centripetal Migration model is opposed to the Farming Language Dispersal theory.

The ethnolinguistic identity of the domesticators of Asian rice

Linguistic palaeontology permits the identification of two language families whose linguistic ancestors pose the likeliest candidates for the original domesticators of rice, viz. Hmong-Mien and Austroasiatic. In the 2009 model, the ancient Hmong-Mien was identified as the primary domesticators of Asian rice, and the ancient Austroasiatics as the secondary domesticators. Recent rice genetic research leads to the modification of this model for rice domestication, but falls short of identifying the original locus of rice domestication. At the same time, the precise whereabouts of the Austroasiatic homeland remains disputed. Linguistic evidence unrelated to rice agriculture has been adduced to support a southern homeland for Austroasiatic somewhere within the Bay of Bengal littoral. The implications of new rice genetic research are discussed, the linguistic palaeontological evidence is reassessed, and an enduring problem with the archaeology of rice agriculture is highlighted.