scholarly journals Possible relations between reproduction of the yellow-necked mouse (Sylvaemus flavicollis) and oak yield

2019 ◽  
Vol 18 (1) ◽  
pp. 33-42 ◽  
Author(s):  
V.A. Vekhnik ◽  
V.P. Vekhnik ◽  
O.A. Rozentsvet ◽  
E.S. Bogdanova
Keyword(s):  
Yellow Necked Mouse

scholarly journals New Data on Organization and Spatial Localization of B-Chromosomes in Cell Nuclei of the Yellow-Necked Mouse Apodemus flavicollis

Cells ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1819
Author(s):  
Tatyana Karamysheva ◽  
Svetlana Romanenko ◽  
Alexey Makunin ◽  
Marija Rajičić ◽  
Alexey Bogdanov ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Sex Chromosomes ◽  
Interphase Nucleus ◽  
Spatial Organization ◽  
Three Dimensional ◽  
Dna Probes ◽  
B Chromosomes ◽  
Apodemus Flavicollis ◽  
Yellow Necked Mouse

The gene composition, function and evolution of B-chromosomes (Bs) have been actively discussed in recent years. However, the additional genomic elements are still enigmatic. One of Bs mysteries is their spatial organization in the interphase nucleus. It is known that heterochromatic compartments are not randomly localized in a nucleus. The purpose of this work was to study the organization and three-dimensional spatial arrangement of Bs in the interphase nucleus. Using microdissection of Bs and autosome centromeric heterochromatic regions of the yellow-necked mouse (Apodemus flavicollis) we obtained DNA probes for further two-dimensional (2D)- and three-dimensional (3D)- fluorescence in situ hybridization (FISH) studies. Simultaneous in situ hybridization of obtained here B-specific DNA probes and autosomal C-positive pericentromeric region-specific probes further corroborated the previously stated hypothesis about the pseudoautosomal origin of the additional chromosomes of this species. Analysis of the spatial organization of the Bs demonstrated the peripheral location of B-specific chromatin within the interphase nucleus and feasible contact with the nuclear envelope (similarly to pericentromeric regions of autosomes and sex chromosomes). It is assumed that such interaction is essential for the regulation of nuclear architecture. It also points out that Bs may follow the same mechanism as sex chromosomes to avoid a meiotic checkpoint.

scholarly journals Leptin, a tool of parasites?

2012 ◽  
Vol 8 (5) ◽  
pp. 849-852 ◽  
Author(s):  
Mare Lõhmus ◽  
Sharon Moalem ◽  
Mats Björklund
Keyword(s):  
Plasma Levels ◽  
Parasitic Infection ◽  
Appetite Regulation ◽  
Strongly Correlated ◽  
Evolutionary Perspective ◽  
Apodemus Flavicollis ◽  
Lower Plasma ◽  
Internal Parasite ◽  
Physiological Phenomenon ◽  
Yellow Necked Mouse

One common physiological phenomenon that is involved both in infectious and in malignant processes is the reduction in appetite: disease anorexia. An increase in plasma levels of leptin with inflammation is thought to be involved in this process. However, from an evolutionary perspective, in certain cases, it would be more adaptive for an internal parasite to stimulate the appetite of the host instead of causing its suppression. We tested whether a parasitic infection with the larvae of the helminth parasite Taenia taeniaformis affects the levels of appetite-regulating proteins, such as leptin, ghrelin and neuropeptide-Y (NPY) in wild yellow-necked mouse ( Apodemus flavicollis ). We found that infected mice had lower plasma levels of leptin and increased levels of NPY than the uninfected subjects. Ghrelin levels were not associated with the occurrence of the parasites; however, these levels strongly correlated with the levels of NPY. This study suggests a possible manipulation by parasitic larvae of appetite regulation in infected subjects.

The spatial genetic structure of bank vole (Myodes glareolus) and yellow-necked mouse (Apodemus flavicollis) populations: The effect of distance and habitat barriers

2009 ◽  
Vol 59 (2) ◽  
pp. 169-187 ◽  
Author(s):  
Michal Kozakiewicz ◽  
Alicja Gryczyńska–Siemiątkowska ◽  
Hanna Panagiotopoulou ◽  
Anna Kozakiewicz ◽  
Robert Rutkowski ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Structure ◽  
Bank Vole ◽  
Microsatellite Loci ◽  
Myodes Glareolus ◽  
Apodemus Flavicollis ◽  
Island Populations ◽  
Local Populations ◽  
Bank Vole Myodes Glareolus ◽  
Yellow Necked Mouse

AbstractHabitat barriers are considered to be an important factor causing the local reduction of genetic diversity by dividing a population into smaller sections and preventing gene flow between them. However, the “barrier effect” might be different in the case of different species. The effect of geographic distance and water barriers on the genetic structure of populations of two common rodent species – the yellow-necked mouse (Apodemus flavicollis) and the bank vole (Myodes glareolus) living in the area of a lake (on its islands and on two opposite shores) was investigated with the use of microsatellite fragment analysis. The two studied species are characterised by similar habitat requirements, but differ with regard to the socio-spatial structure of the population, individual mobility, capability to cross environmental barriers, and other factors. Trapping was performed for two years in spring and autumn in north-eastern Poland (21°E, 53°N). A total of 160 yellow-necked mouse individuals (7 microsatellite loci) and 346 bank vole individuals (9 microsatellite loci) were analysed. The results of the differentiation analyses (FST and RST) have shown that both the barrier which is formed by a ca. 300 m wide belt of water (between the island and the mainland) and the actual distance of approximately 10 km in continuous populations are sufficient to create genetic differentiation within both species. The differences between local populations living on opposite lake shores are the smallest; differences between any one of them and the island populations are more distinct. All of the genetic diversity indices (the mean number of alleles, mean allelic richness, as well as the observed and expected heterozygosity) of the local populations from the lakeshores were significantly higher than of the small island populations of these two species separated by the water barrier. The more profound “isolation effect” in the case of the island populations of the bank vole, in comparison to the yellow-necked mouse populations, seems to result not only from the lower mobility of the bank vole species, but may also be attributed to other differences in the animals' behaviour.

The molecular evidence of Babesia microti infection in small mammals collected in Slovenia

Parasitology ◽  
2003 ◽  
Vol 126 (2) ◽  
pp. 113-117 ◽  
Author(s):  
D. DUH ◽  
M. PETROVEC ◽  
T. TRILAR ◽  
T. AVSIC-ZUPANC
Keyword(s):  
Small Mammals ◽  
Small Subunit ◽  
Clethrionomys Glareolus ◽  
Babesia Microti ◽  
Molecular Evidence ◽  
Rrna Gene ◽  
Small Subunit Rrna ◽  
Pcr Assay ◽  
Small Subunit Rrna Gene ◽  
Yellow Necked Mouse

In Europe, the zoonotic cycle of Babesia microti has not been determined so far. Recently, B. microti was detected in Ixodes ricinus ticks in Slovenia by using molecular methods. In order to investigate the mammalian hosts of B. microti in Slovenia we collected 261 small mammals representing 11 species. They were tested for the presence of babesial parasites with a PCR assay based on the nuclear small subunit rRNA gene (nss-rDNA). The bank vole (Clethrionomys glareolus) and yellow-necked mouse (Apodemus flavicollis) were infected with B. microti. The prevalence rate was 15·9% for C. glareolus and 11·8% for A. flavicollis. Nucleotide sequences of amplified portions of B. microti nss-rDNA from C. glareolus and A. flavicollis were indistinguishable from each other and identical with those previously described in I. ricinus ticks collected in Slovenia. The results of this study represent molecular evidence of B. microti in small mammals in Europe.

scholarly journals Exploring Supernumeraries - A New Marker for Screening of B-Chromosomes Presence in the Yellow Necked Mouse Apodemus flavicollis

PLoS ONE ◽  
2016 ◽  
Vol 11 (8) ◽  
pp. e0160946 ◽  
Author(s):  
Vanja Bugarski-Stanojević ◽  
Gorana Stamenković ◽  
Jelena Blagojević ◽  
Thomas Liehr ◽  
Nadezda Kosyakova ◽  
...  
Keyword(s):  
B Chromosomes ◽  
Apodemus Flavicollis ◽  
Yellow Necked Mouse

scholarly journals First evidence of hepatitis E virus infection in a small mammal (yellow-necked mouse) from Croatia

PLoS ONE ◽  
2019 ◽  
Vol 14 (11) ◽  
pp. e0225583
Author(s):  
Jelena Prpić ◽  
Tomislav Keros ◽  
Marko Vucelja ◽  
Linda Bjedov ◽  
Oktavija Đaković Rode ◽  
...  
Keyword(s):  
Virus Infection ◽  
Small Mammal ◽  
Hepatitis E Virus ◽  
Hepatitis E ◽  
Yellow Necked Mouse

scholarly journals First report on the helminthfauna of the yellow-necked mouse, Apodemus flavicollis, in the Iberian Peninsula

2016 ◽  
Vol 53 (3) ◽  
pp. 294-297 ◽  
Author(s):  
Á. L. Debenedetti ◽  
S. Sainz-Elipe ◽  
S. Sáez-Durán ◽  
D. Galicia ◽  
A. Imaz ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Total Sample ◽  
Helminth Parasites ◽  
Apodemus Flavicollis ◽  
Helminth Community ◽  
Trichuris Muris ◽  
Heligmosomoides Polygyrus ◽  
First Report ◽  
Calodium Hepaticum ◽  
Yellow Necked Mouse

Summary Information about the prevalence of helminth parasites of the yellow-necked mouse, Apodemus flavicollis, in the Iberian Peninsula is almost non-existent and there is no reliable data reported from Spain. Fourteen A. flavicollis from the Erro River valley (Navarre, Spain) were examined for endoparasites, between February 2001 and July 2002. Thirteen specimens (92.9 %) of the total sample were parasitized by at least one of the following six helminth species: one trematode (Corrigia vitta), one cestode (Taenia parva larvae) and four nematodes (Trichuris muris, Calodium hepaticum, Heligmosomoides polygyrus and Syphacia stroma). This is the first report about the helminthfauna of A. flavicollis in the Iberian Peninsula. Nevertheless, a larger number of hosts should be analysed to complete these preliminary results and to adequately characterize the helminth community of this rodent. The finding of C. hepaticum, the causative agent of human capillarosis, stands out.

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