A new locality record for the Syrian hamster, Mesocricetus auratus

Abstract A new occurrence record significantly expanded known distribution limits of the Syrian hamster further south into the Syrian Desert, about 150 km to the south from the known southern range border is reported. Updated distribution map for this species is given based on previous records from Syria and Turkey.

Download Full-text

Interspecific reciprocal hybrids between Mesocricetus auratus and M. newtoni

Genetics Research ◽

10.1017/s0016672300011241 ◽

1968 ◽

Vol 11 (1) ◽

pp. 113-114 ◽

Cited By ~ 9

Author(s):

P. Raicu ◽

S. Bratosin

Keyword(s):

Syrian Hamster ◽

Mesocricetus Auratus ◽

The South ◽

Spreading Area ◽

Dry Steppes ◽

Reciprocal Hybrids ◽

Fodder Plants ◽

Established Species

Our previous research (Raicu & Bratosin, 1966; Raicu, Hamar, Bratosin & Borsan, 1967) has shown that the Romanian hamster (Mesocricetus newtoni, 2n 38) is a well-established species, differing considerably from the Syrian hamster and from other hamster species. The species is spreading in the south of Romama, especially in Dobrudja, and in Bulgaria. Its spreading area is completely isolated from the spreading area of all other species of Mesocricetus. The preferred biotops are uncultivated fields, dry steppes and fields cultivated with fodder plants. The Romanian hamster reveals important differences in the number and structure of the autosomes and in the degree of homology and presence of chiasmata in the heterosomes.

Download Full-text

Age-related and photoperiodic variation of the DAZ gene family in the testis of the Syrian hamster (Mesocricetus auratus)

Zygote ◽

10.1017/s0967199418000023 ◽

2018 ◽

Vol 26 (2) ◽

pp. 127-134 ◽

Cited By ~ 1

Author(s):

Candela Rocío González ◽

Luciana Moverer ◽

Ricardo Saúl Calandra ◽

Silvia Inés González-Calvar ◽

Alfredo Daniel Vitullo

Keyword(s):

Protein Expression ◽

Gene Family ◽

Syrian Hamster ◽

Mesocricetus Auratus ◽

Cell Number ◽

The Novel ◽

Age Related ◽

Mrna And Protein Expression ◽

Long Photoperiod ◽

Daz Gene

SummaryThe Deleted in AZoospermia (DAZ) gene family regulates the development, maturation and maintenance of germ cells and spermatogenesis in mammals. The DAZ family consists of two autosomal genes, Boule and Dazl (Daz-like), and the Daz gene on chromosome Y. The aim of this study was to analyze the localization of DAZL and BOULE during testicular ontogeny of the seasonal-breeding Syrian hamster, Mesocricetus auratus. We also evaluated the testicular expression of DAZ family genes under short- or long-photoperiod conditions. In the pre-pubertal and adult testis, DAZL protein was found mainly in spermatogonia. BOULE was found in the spermatogonia from 20 days of age and during the pre-pubertal and adult period it was also detected in spermatocytes and round spermatids. DAZL and BOULE expression in spermatogonia was strictly nuclear only in 20-day-old hamsters. We also detected the novel mRNA and protein expression of BOULE in Leydig cells. In adult hamsters, Dazl expression was increased in regressed testis compared with non-regressed testis and DAZL protein expression was restricted to primary spermatocytes in regressed testis. These results show that DAZL and BOULE are expressed in spermatogonia at early stages in the Syrian hamster, then both proteins translocate to the cytoplasm when meiosis starts. In the adult regressed testis, the absence of DAZL in spermatogonia might be related to the decrease in germ cell number, suggesting that DAZ gene family expression is involved in changes in seminiferous epithelium during photoregression.

Download Full-text

Spontaneous glomerular basement membrane changes in the golden Syrian hamster (Mesocricetus auratus): a light and electron microscope study

Laboratory Animals ◽

10.1258/002367778781088530 ◽

1978 ◽

Vol 12 (4) ◽

pp. 207-211 ◽

Cited By ~ 5

Author(s):

E. A. E. Van Marck ◽

W. Jacob ◽

A. M. Deelder ◽

P. L. J. Gigase

Keyword(s):

Electron Microscope ◽

Basement Membrane ◽

Glomerular Basement Membrane ◽

Syrian Hamster ◽

Microscope Study ◽

Electron Microscope Study ◽

Mesocricetus Auratus ◽

Golden Syrian Hamster ◽

Membrane Changes ◽

Apparently Healthy

Changes in apparently healthy hamsters, consistent with proteinuria, are reported, but no IgG deposits or amyloid in the glomeruli were detected. Further investigation is required into the significance and the aetiology of these, as yet, obscure alterations.

Download Full-text

The distribution of stone crayfish Austropotamobius torrentium (Schrank, 1803) (Crustacea: Decapoda: Astacidae) in the south-west Romanian mountain and sub-mountain area

Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” ◽

10.2478/v10191-010-0007-6 ◽

2010 ◽

Vol 53 (1) ◽

pp. 103-113 ◽

Cited By ~ 1

Author(s):

Lucian Pârvulescu ◽

Iorgu Petrescu

Keyword(s):

Geographical Distribution ◽

Distribution Map ◽

The South ◽

Large Area ◽

Mountain Area ◽

South West ◽

Austropotamobius Torrentium ◽

Stone Crayfish ◽

Crayfish Species ◽

Geographical Units

The distribution of stone crayfish Austropotamobius torrentium (Schrank, 1803) (Crustacea: Decapoda: Astacidae) in the south-west Romanian mountain and sub-mountain area Data is presented in relation to the geographical distribution of the endangered crayfish species Austropotamobius torrentium. One hundred and seventy-four sampling stations situated along the streams of 15 geographical units from the South-West of Romania (Anina Mountains, Almăj, Dognecea, Godeanu, Locva, Ţarcu, Retezat, Semenic, Mehedinţi, Vâlcan, Parâng, Şureanu, Poiana Ruscă, Lipova Hills and Mehedinţi Plateau) have been investigated. A distribution map was compiled. The data from older publications were collated. The actual habitat of this species occupies a large area of South-West Romania in the mountain and sub-mountain area, being absent in the Poiana Ruscă Mts, Lipova and Dognecea Hills.

Download Full-text

New Embryological Evidence for the Formation of Quadricuspid Aortic Valves in the Syrian Hamster (Mesocricetus auratus)

Journal of Comparative Pathology ◽

10.1053/jcpa.1998.0299 ◽

1999 ◽

Vol 121 (1) ◽

pp. 89-94 ◽

Cited By ~ 19

Author(s):

B. Fernández ◽

A.C. Durán ◽

A. Martire ◽

D. López ◽

V. Sans-Coma

Keyword(s):

Syrian Hamster ◽

Mesocricetus Auratus ◽

Aortic Valves

Download Full-text

First record of Titanomalia komaroffi (Faust, 1877) (Brentidae: Nanophyinae) from Volgograd region (Russia) with a list of the Russian Corimaliini

Ecologica Montenegrina ◽

10.37828/em.2021.45.7 ◽

2021 ◽

Vol 45 ◽

pp. 37-42

Author(s):

Andrei A. Legalov

Keyword(s):

First Record ◽

European Russia ◽

Distribution Map ◽

The South ◽

South Eastern ◽

Volgograd Region

The first record of Titanomalia komaroffi (Faust, 1877) (Brentidae: Nanophyinae: Corimaliini) from Volgograd region, the south-eastern part of European Russia is given. It is the most northern find of this species. The distribution map, illustrations and redescription of Titanomalia komaroffi are presented. A list of species of the tribe Corimaliini of Russia includes nine species from four genera is compiled.

Download Full-text