Study on the Karyotype of<i>Spalax Leucodon</i>Nordm. and S.<i>Microphthalmus</i>Guld

Raicu, P.; Bratosin, S.; Hamar, M.

doi:10.1080/00087114.1968.10796292

Cited by 19 publications

(7 citation statements)

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“…A conventionally stained karyotype of 62 chromosomes was reported for Bukovina blind mole rats from Transylvania and Moldova in Romania (Raicu et al. ) and from the District of Chernovcy in Ukraine (reviewed in Korobchenko & Zagorodniuk ). This diploid number of chromosomes is shared with Spalax zemni , Spalax arenarius and Spalax giganteus (Zima & Král , Korobchenko & Zagorodniuk ).…”

Section: Resultsmentioning

confidence: 99%

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Bukovina blind mole rat Spalax graecus revisited: phylogenetics, morphology, taxonomy, habitat associations and conservation

et al. 2013

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The Bukovina blind mole rat Spalax graecus is the westernmost representative of the genus and one of the least known European mammals. As currently understood, the species contains three isolates on both sides of the south‐eastern Carpathian Mountains. Our focus was on Bukovina blind mole rats from north‐eastern Romania and adjacent Ukraine, i.e. on the nominal subspecies Spalax graecus graecus Topachevskii 1976. Phylogenetic reconstruction based on 1140‐bp‐long cytochrome b sequence revealed a sister position of Spalax graecus against the genus Nannospalax. Pairwise Kimura two‐parameter genetic divergences were evidently higher between Spalax graecus and the three species of Nannospalax (mean distances ± standard errors between 0.177 ± 0.014 and 0.197 ± 0.016) than between the three species of Nannospalax (up to 0.128 ± 0.010). The two genera were separated by 178 mutational steps. The Bukovina blind mole rat is so far known from 13 localities in north‐eastern Romania and adjacent Ukraine. The most influential environmental factors in the Spalax graecus habitat model were seasonality in precipitation, type of soil and altitude. The elevational range of suitable habitats is 39–848 m. The area occupied is estimated at 15581 km2, but patches with high habitat suitability cover only 1604 km2. The main habitat for the Bukovina blind mole rat is likely to degrade and the conservation needs of the species will soon have to be taken into account. We recommend the inclusion of the species on Annex II or IV of the European Union's Habitats Directive on grounds of its (i) narrow endemism, (ii) small range of occupancy, (iii) small overall population size and (iv) vulnerability to changes in agricultural land use.

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Section: Resultsmentioning

confidence: 99%

“…No specimens have reportedly been collected in Romania since the 1960s (Simionescu , Raicu et al. ) and in Ukraine for the last 20–40 years (Zagorodnyuk & Coroiu ).…”

Section: Introductionmentioning

confidence: 99%

Bukovina blind mole rat Spalax graecus revisited: phylogenetics, morphology, taxonomy, habitat associations and conservation

et al. 2013

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“…Furthermore, splitting based on karyotypes proved realistic also in the superspecies S. leucodon (SaviE & SoldatoviE, 1974, 1979, 1984. Additional discoveries were also made of diverse karyotypes in Spalacidae (SoldatoviE et al, 1966;Raicu, Bratison & Hamar, 1968;Raicu & Duma, 1969;Lyapunova, Vorontsov & Martynova, 1974;Giagia, SaviE & Soldatovic, 1982;Peshev & Vorontsov, 1982). Thus, splitting produces a more realistic taxonomy in Spalacidae (as in many other taxa) than lumping.…”

Section: Phylogeny and Systematic5mentioning

confidence: 98%

Karyotype and genetic evolution in speciation of subterranean mole rats of the genus Spalax in Turkey

Nevo¹,

FILIPPUCCI²,

REDI³

et al. 1995

Biol J Linn Soc

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Karyotype (2n) and allozymc divrrsity at 37 gene loci \vrrc determined in ti9 subterrmean tilde rats in Turkry helongirig to the two supcrspccics: the ancestor Spa1n.x lur~rudorr (11 = 55; 20 populations) and the descendant S. t~/rierrhqr (11 = 14; liwr populations). \Ve idciitificd remarkable variation rif diploid clirnmos~itii~ niniil)rrs in the S. Ieucodirrr suprrspccics: 2n = :18. 10. 50, 3, 60 and 62: and in thr S. ulrrenhtrg? supersprcirs: 2rr = 52. 56 and 58. Genrtic diversity indices were low 011 average in Imth S. Itirrridon and ,S. ehrtnbrrp supcrspccirs: Allrle diversity, . 4 = 1.081 and 1.074; polymorphism. F5Y; = 0.077 and 0.068; hctcroqgosity. II = 0.038 ;nid 0.027; and gcnc diversity, H, = 0.038 and 0.034, rrspeclivcly. H ranged from 0 in nirsir or srmimcsic rc+ns to 0.088 in arid Anatolia.W c considrr the populations with dilterent diploid chr(imr)some nuinhers, 2n. as good thloqical spccies. Kar);ot)pic diversity may tnark rxtcnsivc ecological speciation. Nei's grnctic distances. I ) (average 0.174, range 0.002 0.422) and ecngeographical criteria suqyst that a l~n~s t e;ich popitlation may rrprcsriit a diferrnt biological species, but c-ritiral ruturc trsting is necessary to support this claim. Kalyot)prs and allozymes are ti on ran do nil^ distlihutcd across 'l'urkey. displaying rcinar-kahle correlations \s\ith climatic and biotic Factors. Both 2rr and H are significantly correlated with aridity stress (2n/rainlill, r, = -0.74; P < 0.001), and in our regon also with climatic unpredictahility.Thrsc results support the niche-width genetic \ariatinu l~ypotl~csis in space and time. Climatic selection in 'I'urkey appears to he a inajor architect of kai7otype and genetic ~allozymc) diversity and divcrgcncc in mcik rat cv(iIiitioii, i n both speciation and adaptation.

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“…It is of special importance to stress here that the karyotype of the population coming from the northwest of Greece (Lefkothea), according to the diploid number of chromosomes and the fundamental number, corresponds to karyotype forms described in regions of Odessa, Moldavia, Romaninan Moldavia and Dobrudja (RAICU et al 1968(RAICU et al , 1969L'APUNOVA et al 1971 ).…”

Section: Discussionmentioning

confidence: 99%

“…The results of studying taxa [Caryologia, Vol. 31, n. 1, 1978 of the mole rat from some regions of the Balkan Peninsula (W ALKNOWSKA 1963 in Bulgaria;SoLDATOVIc et al 1966aSoLDATOVIc et al , 1966bSoLDATOVIc et al , 1967SoLDATOVIc et al , 1971SoLDATOVIc et al , 1973SAvic and SoLDATOVIc 1974 in Yugoslavia;RAICU et al 1968 and1969 in Romania) indicate the necessity and importance of the corresponding comparative studies on the entire territory of the Balkan Peninsula as a whole, Greece in particular. Besides, even the results of using electrophoretic and immunological methods in studies of systematics and speciation of the mole rat on the Balkan Peninsula obtained in the meanwhile point to the outstanding possibilities of their application.…”

Section: Introductionmentioning

confidence: 99%

Studies on the Karyotype and Distribution Range of the Mole Rat (Spalax LeucodonNordmann) in Greece

Savić¹,

Soldatovic²

1978

Caryologia

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Study on the Karyotype ofSpalax LeucodonNordm. and S.MicrophthalmusGuld

Cited by 19 publications

References 5 publications

Bukovina blind mole rat Spalax graecus revisited: phylogenetics, morphology, taxonomy, habitat associations and conservation

Bukovina blind mole rat Spalax graecus revisited: phylogenetics, morphology, taxonomy, habitat associations and conservation

Karyotype and genetic evolution in speciation of subterranean mole rats of the genus Spalax in Turkey

Studies on the Karyotype and Distribution Range of the Mole Rat (Spalax LeucodonNordmann) in Greece

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