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Ellobius
''Ellobius'' is a genus of rodents in the family Cricetidae. It is the only member of the tribe Ellobiusini. It contains two ('' E. lutescens'' and '' E. tancrei'') of the handful of examples of mammal species that have lost the Y chromosome. The genus has the following species: * Alai mole vole (''Ellobius alaicus'') * Southern mole vole (''Ellobius fuscocapillus'') * Transcaucasian mole vole (''Ellobius lutescens'') * Northern mole vole (''Ellobius talpinus'') * Zaisan mole vole (''Ellobius tancrei'') See also *''Tokudaia ''Tokudaia'' is a genus of murine rodent native to Japan. Known as Ryūkyū spiny rats or spinous country-rats, population groups exist on several non-contiguous islands. Despite differences in name and appearance, they are the closest living rel ...'' References Rodent genera Taxa named by Gotthelf Fischer von Waldheim Taxonomy articles created by Polbot {{Arvicolinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobius
''Ellobius'' is a genus of rodents in the family Cricetidae. It is the only member of the tribe Ellobiusini. It contains two ('' E. lutescens'' and '' E. tancrei'') of the handful of examples of mammal species that have lost the Y chromosome. The genus has the following species: * Alai mole vole (''Ellobius alaicus'') * Southern mole vole (''Ellobius fuscocapillus'') * Transcaucasian mole vole (''Ellobius lutescens'') * Northern mole vole (''Ellobius talpinus'') * Zaisan mole vole (''Ellobius tancrei'') See also *''Tokudaia ''Tokudaia'' is a genus of murine rodent native to Japan. Known as Ryūkyū spiny rats or spinous country-rats, population groups exist on several non-contiguous islands. Despite differences in name and appearance, they are the closest living rel ...'' References Rodent genera Taxa named by Gotthelf Fischer von Waldheim Taxonomy articles created by Polbot {{Arvicolinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobius Talpinus
The northern mole vole (''Ellobius talpinus'') is a species of rodent in the family Cricetidae. It is distributed over large parts of Eastern Europe and Asia. Distribution This vole is found in Kazakhstan, Turkmenistan, Kyrgyzstan, Uzbekistan and Ukraine, the southern parts of Russia, western Siberia, northern Afghanistan, Mongolia and northern China. Morphology The northern mole vole is a small mammal about long with a short tail, weighing up to 70 g. The females are slightly larger than the males. The body is wedge-shaped, the head flat, the neck short and the musculature of the forelimbs strongly developed. It has short, dense, brownish fur somewhat paler on the underparts. The feet are naked and pink. It is adapted to life underground, digging its burrows with the help of its large incisors. Chromosomes The karyotype has Diploid, 2n = 54. The Y chromosome is absent, males and females both possess two X chromosomes per set as in the case of its relative ''Ellobius tancrei, E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Mole Vole
The northern mole vole (''Ellobius talpinus'') is a species of rodent in the family Cricetidae. It is distributed over large parts of Eastern Europe and Asia. Distribution This vole is found in Kazakhstan, Turkmenistan, Kyrgyzstan, Uzbekistan and Ukraine, the southern parts of Russia, western Siberia, northern Afghanistan, Mongolia and northern China. Morphology The northern mole vole is a small mammal about long with a short tail, weighing up to 70 g. The females are slightly larger than the males. The body is wedge-shaped, the head flat, the neck short and the musculature of the forelimbs strongly developed. It has short, dense, brownish fur somewhat paler on the underparts. The feet are naked and pink. It is adapted to life underground, digging its burrows with the help of its large incisors. Chromosomes The karyotype has 2n = 54. The Y chromosome is absent, males and females both possess two X chromosomes per set as in the case of its relative '' E. tancrei'' (whereas for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zaisan Mole Vole
The Zaisan mole vole (''Ellobius tancrei''), or eastern mole vole, is a species of rodent in the family Cricetidae. It is found in central Asia. Description The Zaisan mole vole is highly adapted to life underground. It grows to a head and body length of with a short tail long and weighs between . The coat is dense, soft and velvety. The face and the crown of the head are dark brown and the external ears are reduced to a fleshy ridge. The incisors are pure white, straight and long and project forward in front of the snout. The dorsal surface of the body varies in colour from sandy brown to dark greyish brown and the underparts vary from white to greyish brown. The tail is sandy brown and is tipped with a tuft of greyish-white hair. The hands and feet are broad, have small claws and are covered with white hairs. Chromosomes The karyotype is variable, with 2n = 32-54. The Y chromosome has been lost, similar to the case of '' E. lutescens''; however, unlike in ''E. lutescens'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobius Tancrei
The Zaisan mole vole (''Ellobius tancrei''), or eastern mole vole, is a species of rodent in the family Cricetidae. It is found in central Asia. Description The Zaisan mole vole is highly adapted to life underground. It grows to a head and body length of with a short tail long and weighs between . The coat is dense, soft and velvety. The face and the crown of the head are dark brown and the external ears are reduced to a fleshy ridge. The incisors are pure white, straight and long and project forward in front of the snout. The dorsal surface of the body varies in colour from sandy brown to dark greyish brown and the underparts vary from white to greyish brown. The tail is sandy brown and is tipped with a tuft of greyish-white hair. The hands and feet are broad, have small claws and are covered with white hairs. Chromosomes The karyotype is variable, with 2n = 32-54. The Y chromosome has been lost, similar to the case of '' E. lutescens''; however, unlike in ''E. lutescens'', b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobius Lutescens
The Transcaucasian mole vole (''Ellobius lutescens'') is a species of rodent in the family Cricetidae. It is found in Armenia, Azerbaijan, Georgia, Iran, and Turkey. Chromosomes The karyotype has a low, odd, diploid number, 2n = 17,X. Transcaucasian mole voles have no ''SRY'' gene or Y chromosome; both sexes have an XO sex chromosome set, a state possibly derived from an ancestral population in which males had an XX sex chromosome set, like '' E. tancrei''. Their sex-determination method remains unknown. See also *Zaisan mole vole *''Tokudaia osimensis'' *''Tokudaia tokunoshimensis The Tokunoshima spiny rat (''Tokudaia tokunoshimensis'') is a rodent found only on the island of Tokunoshima in the Ryukyu Islands of Japan. Due to its small habitat, it is considered endangered. It is commonly found in the secondary and primary ...'' References Ellobius Rodents of Asia Vole, Transcaucasian Mole Mammals of Azerbaijan Mole Vole, Transcaucasian South Caucasus Mammals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transcaucasian Mole Vole
The Transcaucasian mole vole (''Ellobius lutescens'') is a species of rodent in the family Cricetidae. It is found in Armenia, Azerbaijan, Georgia, Iran, and Turkey. Chromosomes The karyotype has a low, odd, diploid number, 2n = 17,X. Transcaucasian mole voles have no ''SRY'' gene or Y chromosome; both sexes have an XO sex chromosome set, a state possibly derived from an ancestral population in which males had an XX sex chromosome set, like '' E. tancrei''. Their sex-determination method remains unknown. See also * Zaisan mole vole *''Tokudaia osimensis'' *''Tokudaia tokunoshimensis The Tokunoshima spiny rat (''Tokudaia tokunoshimensis'') is a rodent found only on the island of Tokunoshima in the Ryukyu Islands of Japan. Due to its small habitat, it is considered endangered. It is commonly found in the secondary and primary ...'' References Ellobius Rodents of Asia Vole, Transcaucasian Mole Mammals of Azerbaijan Mole Vole, Transcaucasian South Caucasus Mamm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobius Fuscocapillus
The southern mole vole (''Ellobius fuscocapillus'') is a species of rodent in the family Cricetidae. It is found in Afghanistan, Iran, Pakistan, and Turkmenistan. Chromosomes Southern mole voles are the only member of ''Ellobius ''Ellobius'' is a genus of rodents in the family Cricetidae. It is the only member of the tribe Ellobiusini. It contains two ('' E. lutescens'' and '' E. tancrei'') of the handful of examples of mammal species that have lost the Y chromosome. Th ...'' demonstrated to have both a normal XY/XX chromosomal sex determination system and an ''SRY'' gene. References Ellobius Mammals of Afghanistan Fauna of Iran Mammals of Pakistan Mammals described in 1843 Taxa named by Edward Blyth Taxonomy articles created by Polbot {{Arvicolinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Mole Vole
The southern mole vole (''Ellobius fuscocapillus'') is a species of rodent in the family Cricetidae. It is found in Afghanistan, Iran, Pakistan, and Turkmenistan Turkmenistan ( or ; tk, Türkmenistan / Түркменистан, ) is a country located in Central Asia, bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the sout .... Chromosomes Southern mole voles are the only member of '' Ellobius'' demonstrated to have both a normal XY/XX chromosomal sex determination system and an ''SRY'' gene. References Ellobius Mammals of Afghanistan Fauna of Iran Mammals of Pakistan Mammals described in 1843 Taxa named by Edward Blyth Taxonomy articles created by Polbot {{Arvicolinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Y Chromosome
The Y chromosome is one of two sex chromosomes (allosomes) in therian mammals, including humans, and many other animals. The other is the X chromosome. Y is normally the sex-determining chromosome in many species, since it is the presence or absence of Y that determines the male or female sex of offspring produced in sexual reproduction. In mammals, the Y chromosome contains the gene SRY, which triggers male development. The DNA in the human Y chromosome is composed of about 59 million base pairs, making it similar in size to chromosome 19. The Y chromosome is passed only from father to son. With a 30% difference between humans and chimpanzees, the Y chromosome is one of the fastest-evolving parts of the human genome. The human Y chromosome carries an estimated 100–200 genes, with between 45 and 73 of these being protein-coding. All single-copy Y-linked genes are hemizygous (present on only one chromosome) except in cases of aneuploidy such as XYY syndrome or XXYY syndrome. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobius Alaicus
The Alai mole vole (''Ellobius alaicus'') is a species of rodent in the family Cricetidae. It is known only from Kyrgyzstan, where it has been found in temperate grassland in the Alai Mountains. Little else is known about the vole. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... References Ellobius Mammals of Central Asia Endemic fauna of Kyrgyzstan Rodents of Asia Mammals described in 1969 Taxonomy articles created by Polbot {{Arvicolinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alai Mole Vole
The Alai mole vole (''Ellobius alaicus'') is a species of rodent in the family Cricetidae. It is known only from Kyrgyzstan, where it has been found in temperate grassland in the Alai Mountains. Little else is known about the vole. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... References Ellobius Mammals of Central Asia Endemic fauna of Kyrgyzstan Rodents of Asia Mammals described in 1969 Taxonomy articles created by Polbot {{Arvicolinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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