The intraspecific autosome polymorphism of Meriones tristrami Thomas, 1892 (Gerbillinae, Cricetidae, Rodentia)

Korobitsyna, K. V.; Korablev, V. P.

doi:10.1007/bf00121829

Cited by 7 publications

(5 citation statements)

References 13 publications

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“…Linear length of heterochromatin represents around 20% (mendocinusgroup) and 18% (C. talarum) of the genome. These values are much lower than the 60% calculated by Patton and Sherwood (1982) for T. bottae, but closer to the ones obtained by Korobitsyna and Korablev (1980) in Meriones tristrami (15.9-25.3%).…”

Section: Different Modes Of Chromosomal Evolution Within Ctenomys Andcontrasting

confidence: 47%

“…Several examples of full-arm heterochromatin have been reported in rodents such as Peromyscus (Pathak et al, 1973), Onychomys (Baker & Barnett, 1981), Meriones tristrami (Korobitsyna & Korablev, 1980), Gerbillus nigeriae and Gerbillus hesperinus (ViegasPequignot et al, 1984). Similarly in other groups, heterochromatin is located in interstitial or terminal sites (Burton & Bickham, 1989;Gustafson et al, 1983;John & King, 1983;Mudry et al, 1985).…”

Section: Heterochromatin Behaves Differently In Different Organismsmentioning

confidence: 99%

“…In Meriones tristrami Korobitsyna and Korablev (1980) found four individuals out of 28 from two localities that also showed intraindividual chromosomal variation. They exhibit up to four varying cytotypes in different bone marrow cells, These authors pointed out the apparent lability of heterochromatin in this species, and suggest that heteromorphic pairs resulted from partial heterochromatin redistribution.…”

Section: The Significance Of Intraindividual Chromosome Variationmentioning

confidence: 99%

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Chromosomal polymorphism and small karyotypic differentiation in a group of Ctenomys species from Central Argentina (Rodentia: Octodontidae)

et al. 1991

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Cytogenetic analysis was performed in six nominal taxa of the genus Ctenomys with a diploid number of 2n=47/48. The studied species were: C. australis (2n=48, FN=76); C. mendocinus (2n=47/48, FN=68/75/76); C. porteousi (2n=47/48, FN=71/72/73); C. azarae (2n=47, FN=71); C. sp. ('chasiquensis') (2n=47/48); and C. talarum (2n=48, FN=80). The first three species shared the whole complement, C. talarum shares with them 19 arms from a total of 43 (44%). In all species analyzed constitutive heterochromatin was detected in most short arms, and in several centromeres. Polymorphisms for several pairs involving the heterochromatic short arms together with a complex polymorphism of pair A 1 were found in C. azarae, C. sp., C. mendocinus and C. porteousi. Intraindividual variation found in one specimen of C. porteousi involving heterochromatic arms is discussed.These results lead us to propose the inclusion of all species except C. talarum, within a complex called the mendocinus-group. A new case of conservatism for chromosomal number in the genus Ctenomys is found in this group.

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Section: Different Modes Of Chromosomal Evolution Within Ctenomys Andcontrasting

confidence: 47%

Section: Heterochromatin Behaves Differently In Different Organismsmentioning

confidence: 99%

Section: The Significance Of Intraindividual Chromosome Variationmentioning

confidence: 99%

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Chromosomal polymorphism and small karyotypic differentiation in a group of Ctenomys species from Central Argentina (Rodentia: Octodontidae)

et al. 1991

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“…49). This variation is assumed to originate from the alternative presence or absence of C-heterochromatic short arms in some acrocentric autosomes (Korobitsyna & Korablev 1980). Variations in proportion of the bi-armed and uni-armed autosomes as well as in the size and the centromere position in the sex chromosomes were reported from Turkey (Kefelioğlu 1997b, 1998d, Yiğit & Çolak 1998, Yiğit et al 2006b, Demirbaş & Pamukoğlu 2008.…”

Section: Iranian Vole Microtus Iranimentioning

confidence: 97%

Karyotypes of the mammals of Turkey and neighbouring regions: a review

Arslan

Zima

2014

Folia Zoologica

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“…Karyotype features are essential diagnostic characteristics of many mammalian species [24,25]. Even species with similar diploid number (2n) and chromosome morphology have been shown to differ significantly in distributional patterns of nucleolar organizer regions (NOR) [26][27][28][29] and the amount and location of heterochromatic material on chromosomes [30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Karyology of the Bats from the Russian Far East

Gorobeyko¹,

Картавцева²

2019

Cytogenetics - Past, Present and Further Perspectives

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Recent studies based on morphologic and molecular genetic data have revealed quite a serious variety in the trans-Palearctic species, which brought about taxonomic status changes in 14 of 18 Russian Far Eastern bat species. Far Eastern bat status revisions resulted in species growth whose chromosome characteristics have been described either under other names or have not been studied at all. This paper has inventoried bat chromosome research in the Russian Far East and neighboring regions and has improved the accuracy of chromosome characteristics for 17 of 18 valid species today. For the first time, the karyotypes and their variation type for the valid bat species in the Russian Far East have been described.

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The intraspecific autosome polymorphism of Meriones tristrami Thomas, 1892 (Gerbillinae, Cricetidae, Rodentia)

Cited by 7 publications

References 13 publications

Chromosomal polymorphism and small karyotypic differentiation in a group of Ctenomys species from Central Argentina (Rodentia: Octodontidae)

Chromosomal polymorphism and small karyotypic differentiation in a group of Ctenomys species from Central Argentina (Rodentia: Octodontidae)

Karyotypes of the mammals of Turkey and neighbouring regions: a review

Karyology of the Bats from the Russian Far East

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