Chromosomal variation in social voles: a Robertsonian fusion in Günther’s vole

Zima, Jan; Arslan, Atilla; Benda, Petr; Macholán, Miloš; Kryštufek, Boris

doi:10.1007/s13364-012-0113-x

Cited by 17 publications

(27 citation statements)

References 29 publications

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“…Morphological differences between the type series of M. irani and M. schidlovskii-karamani are obvious (Kryštufek & Kefelio lu, 2001b, Kryštufek et al, 2010. Karyotype of M. irani, on the other hand, is not known with certaintainty (Zima et al, 2013). Clearly, we need to gain more information in order to stabilize species taxonomy in Sumeriomys.…”

Section: Discussionmentioning

confidence: 99%

“…We assessed taxonomic position of M. schidlovskii from Armenia and its relationships with seven other species of social voles using molecular data. The diploid chromosome numbers of social voles vary between 46 and 64 (Zima et al, 2013). In late 1980s Ayrumyan et al (1986) convincingly demonstrated species independence of M. schidlovskii Argyropulo, 1933.…”

Section: Introductionmentioning

confidence: 99%

“…Because of genetic and morphological differences between voles from Balkusan and Shiraz, which is the type locality of M. irani, the former were described as a new subspecies M. i. karamani Kryštufek, Vohralík, Zima, Koubínova & Bužan, 2010(Kryštufek et al, 2010. Karyotype of M. irani is not known with certainty (Zima et al, 2013). Diploid number 2n = 62 was reported from Shiraz and ascribed to M. irani (Golenishchev et al, 2002), however this may belong as well to M. socialis, which is known to occur in this part of Iran (Kryštufek & Kefelio lu, 2001).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cytochrome b yields new insight into taxonomic scope of Microtus schidlovskii (Rodentia, Arvicolinae, Microtus)

Zorenko¹,

Koren²,

Kryštufek³

2014

Rus.J.Theriol.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cytochrome b yields new insight into taxonomic scope of Microtus schidlovskii (Rodentia, Arvicolinae, Microtus)

Zorenko¹,

Koren²,

Kryštufek³

2014

Rus.J.Theriol.

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“…For example, 2 medium-sized X chromosome variants (metacentric and acrocentric) and a small Y chromosome have been described in M. savii , while the closely related M. brachycercus has a large submetacentric X and a large acrocentric Y chromosome [Galleni et al, 1994;Castiglia et al, 2008]. In M. guentheri , 3 X chromosome variants (acrocentric, submetacentric, and metacentric) and 2 Y chromosome variants (small-and medium-sized) have been described [Chassovnikarova et al, 2008;Mitsainas et al, 2010;Zima et al, 2013]. M. rossiaemeridionalis has 2 different X chromosomes varying in the size of the heterochromatic block [Fredga et al, 1990].…”

Section: Heterochromatin Enlargement Of Sex Chromosomes In Microtusmentioning

confidence: 99%

Extensive Sex Chromosome Polymorphism of Microtus thomasi/Microtus atticus Species Complex Associated with Cryptic Chromosomal Rearrangements and Independent Accumulation of Heterochromatin

Rovatsos

Marchal²,

Romero-Fernández³

et al. 2017

Cytogenet Genome Res

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The sibling species Microtus thomasi and M. atticus represent probably the highest karyotypic diversity within the genus Microtus and are an interesting model for chromosomal evolution studies. In addition to variation in autosomes, they show a high intraspecific variation in the size and morphology of both sex chromosomes. We analyzed individuals with different sex chromosome constitutions using 3 painting probes, 2 from Y chromosome variants and 1 from the small arm of the submetacentric X chromosome. Our comparative painting approach uncovered 12 variants of Y and 14 variants of X chromosomes, which demonstrates that the polymorphism of sex chromosomes is substantially larger than previously reported. We suggest that 2 main processes are responsible for this sex chromosome polymorphism: change of morphology from acrocentric to submetacentric or metacentric chromosomes and increase in size due to accumulation of repetitive DNA sequences, generating heterochromatic blocks. Strong genetic drift in small and fragmented populations of these 2 species could be related to the origin and maintenance of the large polymorphism of sex chromosomes. We proposed that a similar polymorphism variation combined with random drift fixing the biggest sex chromosomes could have occurred in the origin of some of the actual Microtus species with giant sex chromosomes.

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“…These cytotypes were attributed to the common (arvalis) and Altai (obscurus) voles having, respectively, fundamental number of autosomes (NFa)=80 in Caucasian populations; NFa=68-70 (Meyer et al, 1996). Within the distribution areas of populations of M. majori, M. guentheri and obscurus cytotype, various researchers have conducted karyological studies in the form of conventional chromosome staining (Kefelioğlu, 1995;Çolak et al, 1997a, b;Çolak et al, 1998;Kefelioğlu and Kryštufek, 1999;Yiğit and Çolak, 2002;Arslan and Zima, 2014), G-banding (Macholan et al, 2001;Zima et al, 2013), C and Ag-NOR banding (Yiğit and Çolak, 2002;Baydemir et al, 2011;Tougard et al,2013;Yorulmaz et al, 2013;Zima et al, 2013). According to these studies, variations was found in the autosomal and sex chromosome morphologies of M. guentheri, M. arvalis (obscurus cytotype) and M. majori species.…”

Section: Introductionmentioning

confidence: 99%

Cytogenetic Characteristics of Microtus guentheri, Microtus arvalis sensu lato and Microtus majori (Mammalia: Rodentia) From Turkey: Constitutive Heterochromatin Distribution

Selçuk

Bilir

Kefelioğlu

2019

Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi

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Conventionally stained and C-banded karyotypes of Guenther's vole (Microtus guentheri), Major's pine vole (Microtus majori) and Common vole (Microtus arvalis) were studied from Turkey. Diploid chromosome numbers of M. guentheri, M. arvalis and M. majori were found as 2n=54 and NFa=52, 2n=46 and NFa=68 and 2n=54 and NFa=56, respectively. All chromosomes of M. guentheri were pericentromeric C-band. In Microtus arvalis (obscurus cytotype) and Microtus majori karyotypes, autosomal chromosomes were heterochromatin C band positive and negative band. In M. arvalis (obscurus cytotype), sex chromosome was C band negative. In this study, heterozygote chromosome was not found in the obtained autosomal chromosome set of M. arvalis. M. majori has enlarged heterochromatin block from centromere to telomere on the long arm of X chromosome. Y chromosome was completely heterochromatin. ÖZET Bu çalışmada, Güentheri tarla faresi (Microtus guentheri), Kısa kulaklı kır faresi (Microtus majori) ve Yaygın tarla faresi (Microtus arvalis) türlerinin standart karyotipleri ve kromozomların C-bant özellikleri belirlendi. M. guentheri türünün diploid kromozom sayısı (2n) = 54 ve otozomal kromozomların kol sayısı (NFa) = 52, M. arvalis (obscurus sitotip) türünün 2n = 46 ve NFa = 68, M.majori türünün 2n = 54 ve NFa = 56 şeklindedir. M. guentheri otozomal ve eşey kromozomlarda pericentromerik C-bant olduğu belirlendi. Microtus arvalis (obscurus sitotip) ve Microtus majori karyotiplerinde otozomal kromozomlar C bant pozitif ve negatif şeklindedir. M. arvalis türünde X ve Y kromozomu C bant negatif özelliktedir. M. majori karyotipinde X kromozomunun uzun kolunda sentromerden telomere doğru genişlemiş heterokromatin blok bulunmaktadır. Y kromozomu ise tamamen heterokromatindir.

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Chromosomal variation in social voles: a Robertsonian fusion in Günther’s vole

Cited by 17 publications

References 29 publications

Cytochrome b yields new insight into taxonomic scope of Microtus schidlovskii (Rodentia, Arvicolinae, Microtus)

Cytochrome b yields new insight into taxonomic scope of Microtus schidlovskii (Rodentia, Arvicolinae, Microtus)

Extensive Sex Chromosome Polymorphism of Microtus thomasi/Microtus atticus Species Complex Associated with Cryptic Chromosomal Rearrangements and Independent Accumulation of Heterochromatin

Cytogenetic Characteristics of Microtus guentheri, Microtus arvalis sensu lato and Microtus majori (Mammalia: Rodentia) From Turkey: Constitutive Heterochromatin Distribution

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