Phodopus


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Phodopus

 

(dwarf hamsters, desert hamsters, or Asian hamsters), a genus of rodents of the family Cricetidae. The length of the body is up to 10 cm long; the tail measures less than 1 cm. The tail and soles of the feet are densely covered with hair. There are three species. The hamsters are encountered in northwestern China and in the southern deserts and plain and mountain steppes of Western Siberia, Eastern Kazakhstan, and Mongolia. All three species are found in the USSR. The hamsters feed on seeds and insects; they bear up to three litters per year. Phodopus sungorus is used as a laboratory animal.

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The subfamily Cricetinae is currently composed of seven genera: Allocricetulus, Cansumys, Cricetulus, Cricetus, Mesocricetus, Phodopus, and Tscherskia, with a total of eighteen species (Musser and Carleton 2005).
As more DNA sequences become available, other hamster species, such as those from the Phodopus and the Mesocricetus groups could be added to these studies.
In the same genus as pet-store standards, the wild Phodopus sungorus survives winter temperatures that plunge to --40 [degrees] C, says Staci D.
These 6 species diverge into 3 genera, mainly Cricetulus (including Armenian and Chinese), Phodopus (including Djungarian and Siberian), and Mesocricetus (including Turkish and Syrian) hamster species (Figure 1).
Transmission of 263K to hamsters of the genus Phodopus (Djungarian and Siberian) had incubation periods similar to each other but different from those of the Mesocricetus hamsters.
These polymorphic changes could explain why Armenian and Chinese hamsters have such different incubation periods, PrPres glycoform patterns, and immunohistochemical profiles from each other as well as from the 2 genera Cricetulus and Phodopus.
The population sizes (Table 1) included only dwarf hamsters and did not distinguish between the Chinese and Roborovsky dwarf hamsters (Cricetulus curtatus and Phodopus roborovskii, respectively).