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Riccardo Castiglia - One of the best experts on this subject based on the ideXlab platform.
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integrative taxonomy of the italian pine voles microtus savii group cricetidae Arvicolinae
Zoologica Scripta, 2016Co-Authors: Alexandra M R Bezerra, Flavia Annesi, Gaetano Aloise, Giovanni Amori, Leonardo Giustini, Riccardo CastigliaAbstract:The Italian endemic voles belonging to the Microtus savii group (de Selys-Longchamps, 1838) include five controversial taxa, namely M. savii savii, M. s. niethammericus Contoli 2003; M. s. tolfetanus Contoli 2003, M. s. nebrodensis (Mina-Palumbo, 1868) and M. brachycercus (Lehamann, 1961). A previous mtDNA phylogenetic analysis revealed three main mtDNA lineages that do not correspond to the recognized taxa. Here, we perform a comprehensive univariate and multivariate analysis of craniodental measurements in 151 specimens from 54 geographic samples belonging to the three main phylogroups. Qualitative data on the skull of 126 specimens were also obtained from 54 localities. Moreover, we sequenced the nuclear DNA β-fibrinogen intron 7 (β-fibint7) of 23 specimens from 12 localities and Cyt b sequences of 11 new specimens from seven localities. The pattern of morphological and cytogenomic divergence does not corroborate the current taxonomic framework and indicates that M. nebrodensis is a Sicilian endemic species.
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comparative cytogenetic study of two sister species of iberian ground voles microtus terricola duodecimcostatus and m t lusitanicus rodentia cricetidae
Cytogenetic and Genome Research, 2011Co-Authors: Ekaterina Gornung, Riccardo Castiglia, Michail Rovatsos, Juan A Marchal, Diaz R De La Guardiaquiles, Antonio SanchezAbstract:The two Iberian species of pine voles, Microtus (Terricola) duodecimcostatus and M. (T.) lusitanicus of the subfamily Arvicolinae (Cricetidae, Rodentia), were compared after G- and C-banding and chromosomal mapping of ribosomal RNA genes (rDNA), telomeric repeats, and satellite DNA Msat-160. Notwithstanding their close relationship (one sister group in phylogenetic analyses) and sharing of the diploid and fundamental chromosome numbers, the 2 species show notable differences in the sex chromosome morphology, the number and distribution of rDNA sites, constitutive heterochromatin and satDNA patterns. The only telomeric repeats showed normal, all-telomeric, distribution in karyotypes of both species. The data are discussed with regard to interspecific and intrageneric variation of the analyzed characters and the chromosomal evolution in the genus Microtus.
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Comparative cytogenetic study of two sister species of iberian ground voles, microtus (Terricola) duodecimcostatus and M. (T.) lusitanicus (Rodentia, Cricetidae)
'S. Karger AG', 2011Co-Authors: Ekaterina Gornung, Riccardo Castiglia, Michail Rovatsos, J. A. Marchal, R.d. De La Guardia-quiles, A. SánchezAbstract:The two Iberian species of pine voles, Microtus (Terricola) duodecimcostatus and M. (T.) lusitanicus of the subfamily Arvicolinae (Cricetidae, Rodentia), were compared after G- and C-banding and chromosomal mapping of ribosomal RNA genes (rDNA), telomeric repeats, and satellite DNA Msat-160. Notwithstanding their close relationship (one sister group in phylogenetic analyses) and sharing of the diploid and fundamental chromosome numbers, the 2 species show notable differences in the sex chromosome morphology, the number and distribution of rDNA sites, constitutive heterochromatin and satDNA patterns. The only telomeric repeats showed normal, all-telomeric, distribution in karyotypes of both species. The data are discussed with regard to interspecific and intrageneric variation of the analyzed characters and the chromosomal evolution in the genus Microtus. Copyright © 2010 S. Karger AG, Basel
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Characterization of the satellite DNA Msat-160 from species of Terricola (Microtus) and Arvicola (Rodentia, Arvicolinae)
'Springer Science and Business Media LLC', 2010Co-Authors: Manuel J. Acosta, Riccardo Castiglia, Ekaterina Gornung, Michail Rovatsos, Juan A Marchal, C. H. Fernández-espartero, Ismael Romero-fernandez, Eva B. Giagia-athanasopoulou, Antonio SanchezAbstract:In the subfamily Arvicolinae (Cricetidae, Rodentia) the satellite DNA Msat-160 has been so far described in only some species from the genus Microtus and in one species from another genus, Chionomys nivalis. Here we cloned and characterized this satellite in two new arvicoline species, Microtus (Terricola) savii and Arvicola amphibius (terrestris). We have also demonstrated, by PCR and FISH, its existence in the genomes of several other species from both genera. These results suggest that Msat-160 already occurred in the common ancestor of the four genera/subgenera of Arvicolinae (Microtus, Chionomys, Arvicola, and Terricola). In Arvicola and Terricola, Msat-160 showed the basic monomer length of 160 bp, although a higher-order repeat (HORs) of 640 bp could have been probably replacing the original monomeric unit in A. a. terrestris. Msat-160 was localized by FISH mostly on the pericentromeric regions of the chromosomes, but the signal intensity and the number of carrier chromosomes varied extremely even between closely related species, resulting in a species-specific pattern of chromosomal distribution of this satellite. Such a variable pattern most likely is a consequence of a rapid amplification and contraction of particular repeats in the pericentromeric regions of chromosomes. In addition, we proposed that the rapid variation of pericentromeric repeats is strictly related to the prolific species radiation and diversification of karyotypes that characterize Arvicolinae lineage. Finally, we performed phylogenetic analysis in this group of related species based on Msat-160 that results to be in agreement with previously reported phylogenies, derived from other molecular markers
Brunet-lecomte Patrick - One of the best experts on this subject based on the ideXlab platform.
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Précisions sur la localité-type du campagnol des Pyrénées Microtus (Terricola) pyrenaicus (de Sélys Longchamps, 1847) (Arvicolmae, Rodentia)
'PERSEE Program', 2010Co-Authors: Brunet-lecomte PatrickAbstract:Remarks on type locality of the Pyrenean vole Microtus (Terricola) pyrenaicus (de Sélys Lonchamps, 1847) (Arvicolinae, Rodentia). This note aims to specify as exactly as possible the type locality of the Pyrenean vole Microtus (Terricola) pyrenaicus (de Sélys Lonchamps, 1 847) : mountains of Pyrenees, Pic du Midi de Bigorre, at high altitude (Hautes-Pyrénées, France).L'objectif de cette note est de préciser aussi exactement que possible la localité-type du campagnol des Pyrénées Microtus (Terricola) pyrenaicus (de Sélys Lonchamps, 1847) : montagnes des Pyrénées, Pic du Midi de Bigorre, à une grande altitude (Hautes-Pyrénées, France).Brunet-Lecomte Patrick. Précisions sur la localité-type du campagnol des Pyrénées Microtus (Terricola) pyrenaicus (de Sélys Longchamps, 1847) (Arvicolmae, Rodentia). In: Bulletin mensuel de la Société linnéenne de Lyon, 79ᵉ année, n°7-8, Septembre-octobre 2010. pp. 261-262
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Analyse comparée des critères de la première molaire inférieure entre différentes populations du campagnol basque de Microtus (Terricola) lusitanicus (Gerbe, 1879) (Rodentia, Arvicolinae) selon leur répartition géographique
'PERSEE Program', 2009Co-Authors: Brunet-lecomte PatrickAbstract:Comparative analysis of the first lower molar criteria between different populations of the Lusitanian vole Microtus (Terricola) lusitanicus (Gerbe, 1879) (Rodentia, Arvicolinae) from the point of view of the geographical distribution. The objective of this study is the comparative analysis of the first lower molar (M1) criteria between seven geographical groups of the Lusitanian vole Microtus (Terricola) lusitanicus (Gerbe, 1879) from the whole area of distribution of the species. The main result is the differentiation of the French Pyrenees group, in particular characterised by a reduced relative development of the anterior part of the M1. In other Iberian groups, geographical differentiations are observed for each criterion, but these differences seem to be less significant than those observed for the French Pyrenees group. The subspecific status of French Pyrenees populations is posed.L'objectif de cette étude est l'analyse comparée des critères de la première molaire inférieure (M1) entre sept groupes géographiques du campagnol basque Microtus (Terricola) lusitanicus (Gerbe, 1879) répartis sur l'ensemble de l'aire de répartition de l'espèce. Le principal résultat est la différenciation du groupe des Pyrénées françaises, caractérisé en particulier par un développement réduit de la partie antérieure de la M1. Dans les groupes géographiques ibériques, des différences morphologiques sont trouvées pour chaque critère, mais ces différences sont moins significatives que celles observées pour le groupe des Pyrénées françaises. Le statut sub-spécifique des populations des Pyrénées françaises est posé.Brunet-Lecomte Patrick. Analyse comparée des critères de la première molaire inférieure entre différentes populations du campagnol basque de Microtus (Terricola) lusitanicus (Gerbe, 1879) (Rodentia, Arvicolinae) selon leur répartition géographique. In: Bulletin mensuel de la Société linnéenne de Lyon, 78ᵉ année, n°1-2, Janvier-février 2009. pp. 11-19
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A propos de l'observation de cas de campagnols des champs Microtus arvalis (Pallas, 1778) (Rodentia, Arvicolinae) caractérisés par une première molaire inférieure présentant un rhombe pitymyen
'PERSEE Program', 2008Co-Authors: Brunet-lecomte PatrickAbstract:About some cases of common voles Microtus arvalis (Pallas, 1778) (Rodentia, Arvicolinae) characterised by a first lower molar with a pitymyan rhombus. This note describes and comments on some cases of common voles Microtus arvalis (Pallas, 1778) characterised by a first lower molar with a pitymyan rhombus.Cette note décrit et commente quelques cas de campagnols des champs Microtus arvalis (Pallas, 1778) présentant un rhombe pitymyen à la première molaire inférieure.Brunet-Lecomte Patrick. A propos de l'observation de cas de campagnols des champs Microtus arvalis (Pallas, 1778) (Rodentia, Arvicolinae) caractérisés par une première molaire inférieure présentant un rhombe pitymyen. In: Bulletin mensuel de la Société linnéenne de Lyon, 77ᵉ année, n°3-4, Mars-avril 2008. pp. 41-43
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Analyse odontométrique comparée de populations du campagnol des neiges Chionomys nivalis (Martins, 1842) (Rodentia, Arvicolinae).
Monaco : Editions de Fontvieille, 2007Co-Authors: Paunesco Alexandra-cristina, Brunet-lecomte PatrickAbstract:14 pagesLa morphométrie comparée de la première molaire inférieure (M1) de onze populations du campagnol des neiges Chionomys nivalis (Rodentia, Arvicolinae) (Martins, 1842) du Pléistocène supérieur et de l'Holocène de France, d'Allemagne et de Roumanie, montre une nette différenciation morphologique entre les populations de ces trois pays, exprimée par un gradient morphologique est-ouest. A l'échelle du pays, des divergences morphologiques, plus modérées, sont observées, en particulier chez les populations de France et des Carpates méridionales et occidentales
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Note sur l'observation d'un campagnol souterrain de Provence Microtus (Terricola) duodecimcostatus (de Sélys-Longchamps, 1839) (Arvicolinae, Rodentia) à dos noir dans le Trièves (Isère, France)
'PERSEE Program', 2005Co-Authors: Brunet-lecomte PatrickAbstract:Brunet-Lecomte Patrick. Note sur l'observation d'un campagnol souterrain de Provence Microtus (Terricola) duodecimcostatus (de Sélys-Longchamps, 1839) (Arvicolinae, Rodentia) à dos noir dans le Trièves (Isère, France). In: Bulletin mensuel de la Société linnéenne de Lyon, 74ᵉ année, n°7-8, septembre 2005. p. 296
A. Sánchez - One of the best experts on this subject based on the ideXlab platform.
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Comparative cytogenetic study of two sister species of iberian ground voles, microtus (Terricola) duodecimcostatus and M. (T.) lusitanicus (Rodentia, Cricetidae)
'S. Karger AG', 2011Co-Authors: Ekaterina Gornung, Riccardo Castiglia, Michail Rovatsos, J. A. Marchal, R.d. De La Guardia-quiles, A. SánchezAbstract:The two Iberian species of pine voles, Microtus (Terricola) duodecimcostatus and M. (T.) lusitanicus of the subfamily Arvicolinae (Cricetidae, Rodentia), were compared after G- and C-banding and chromosomal mapping of ribosomal RNA genes (rDNA), telomeric repeats, and satellite DNA Msat-160. Notwithstanding their close relationship (one sister group in phylogenetic analyses) and sharing of the diploid and fundamental chromosome numbers, the 2 species show notable differences in the sex chromosome morphology, the number and distribution of rDNA sites, constitutive heterochromatin and satDNA patterns. The only telomeric repeats showed normal, all-telomeric, distribution in karyotypes of both species. The data are discussed with regard to interspecific and intrageneric variation of the analyzed characters and the chromosomal evolution in the genus Microtus. Copyright © 2010 S. Karger AG, Basel
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Retroelements (LINEs and SINEs) in vole genomes: Differential distribution in the constitutive heterochromatin
Chromosome Research, 2008Co-Authors: M. J. Acosta, J. A. Marchal, C. H. Fernández-espartero, M. Bullejos, A. SánchezAbstract:The chromosomal distribution of mobile genetic elements is scarcely known in Arvicolinae species, but could be of relevance to understand the origin and complex evolution of the sex chromosome heterochromatin. In this work we cloned two retrotransposon sequences, L1 and SINE-B1, from the genome of Chionomys nivalis and investigated their chromosomal distribution on several arvicoline species. Our results demonstrate first that both retroelements are the most abundant repeated DNA sequences in the genome of these species. L1 elements, in most species, are highly accumulated in the sex chromosomes compared to the autosomes. This favoured L1 insertion could have played an important role in the origin of the enlarged heterochromatic blocks existing in the sex chromosomes of some Microtus species. Also, we propose that L1 accumulation on the X heterochromatin could have been the consequence of different, independent and rapid amplification processes acting in each species. SINE elements, however, were completely lacking from the constitutive heterochromatin, either in autosomes or in the heterochromatic blocks of sex chromosomes. These data could indicate that some SINE elements are incompatible with the formation of heterochromatic complexes and hence are necessarily missing from the constitutive heterochromatin.
Yongzhen Zhang - One of the best experts on this subject based on the ideXlab platform.
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identification and characterization of a novel subtype of tula virus in microtus arvalis obscurus voles sampled from xinjiang china
Infection Genetics and Evolution, 2019Co-Authors: Jintao Chen, Jing Qin, Xiaoping Wang, Alexander Plyusnin, Wei Hou, Yongzhen ZhangAbstract:Although most of Arvicolinae associated hantaviruses can not cause disease in humans, hemorrhagic fever with renal syndrome (HFRS) cases caused by Tula virus (TULV) have been described in Europe since 2002. In addition to Europe, TULV was also identified in the Microtus arvalis obscurus voles sampled from Kazakhstan, which shares borders with China. To gain more insight into the molecular epidemiology of TULV, a total of 365 rodents representing 7 species of 4 subfamily (Arvicolinae, Murinae, Gerbillinae, and Cricetinae) were captured in Qapqal county, Xinjiang, northwest China. Hantavirus RNA was recovered from 40 lung tissue samples of M. arvalis obscurus, with the prevalence of 10.96%. Genetic analysis revealed that all recovered viral sequences were most closely related to those of TULV, but exhibited >11% nucleotide differences from all currently known TULV, suggesting that they may represent a new subtype of TULV. In the S tree, the newly identified viruses formed a distinct lineage and showed a close evolutionary relationship with those sampled from Southwestern Siberia and Kazakhstan. However, they exhibited a different clustering pattern in both the M and the L trees, suggesting the possibility of genetic reassortment. Finally, the recombination event was also observed in Xinjiang TULV viruses. In sum, all these data reveal a complex evolutionary history of TULV in Central Asia.
Bisong Yue - One of the best experts on this subject based on the ideXlab platform.
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dna barcoding of murinae rodentia muridae and Arvicolinae rodentia cricetidae distributed in china
Molecular Ecology Resources, 2015Co-Authors: Xin Zheng, Yansen Cai, Xiuyue Zhang, Min Yang, Bisong YueAbstract:Identification of rodents is very difficult mainly due to high similarities in morphology and controversial taxonomy. In this study, mitochondrial cytochrome oxidase subunit I (COI) was used as DNA barcode to identify the Murinae and Arvicolinae species distributed in China and to facilitate the systematics studies of Rodentia. In total, 242 sequences (31 species, 11 genera) from Murinae and 130 sequences (23 species, 6 genera) from Arvicolinae were investigated, of which 90 individuals were novel. Genetic distance, threshold method, tree-based method, online BLAST and BLOG were employed to analyse the data sets. There was no obvious barcode gap. The average K2P distance within species and genera was 2.10% and 12.61% in Murinae, and 2.86% and 11.80% in Arvicolinae, respectively. The optimal threshold was 5.62% for Murinae and 3.34% for Arvicolinae. All phylogenetic trees exhibited similar topology and could distinguish 90.32% of surveyed species in Murinae and 82.60% in Arvicolinae with high support values. BLAST analyses yielded similar results with identification success rates of 92.15% and 93.85% for Murinae and Arvicolinae, respectively. BLOG successfully authenticated 100% of detected species except Leopoldamys edwardsi based on the latest taxonomic revision. Our results support the species status of recently recognized Micromys erythrotis, Eothenomys tarquinius and E. hintoni and confirm the important roles of comprehensive taxonomy and accurate morphological identification in DNA barcoding studies. We believe that, when proper analytic methods are applied or combined, DNA barcoding could serve as an accurate and effective species identification approach for Murinae and Arvicolinae based on a proper taxonomic framework.
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complete mitochondrial genome of a new vole proedromys liangshanensis rodentia cricetidae and phylogenetic analysis with related species are there implications for the validity of the genus proedromys
Mitochondrial DNA, 2011Co-Authors: Haibang Hao, Xiuyue Zhang, Yang Liu, Shaoying Liu, Weicai Chen, Zhaobin Song, Hongyuan Peng, Bisong YueAbstract:Aim. The complete mitochondrial genome sequence of a newly discovered vole, Proedromys liangshanensis (Rodentia: Cricetidae: Arvicolinae), was determined. Results. The mitogenome of P. liangshanensis is 16,296 bp in length. As with most other mammals, it contains the same gene order and an identical number of genes or regions, including 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, and one putative control region. The A+T content of the control region is 58.2%, the lowest proportion detected so far in Myomorpha. To confirm the phylogenetic position of P. liangshanensis, we carried out phylogenetic analyses based on complete mitochondrial genomic data using Bayesian, maximum parsimony, and maximum likelihood methods. Conclusion. All results revealed that P. liangshanenis is sister to Microtus. Although the results do not bear light on the validity of the genus Proedromys, based on the morphological characters, we suggest that Proedromys is an independent genus of equal rank to th...
