Analysis of the PPARGC1A gene as a potential marker for productive and reproductive traits in cattle [0.03%]
PPARGC1A基因作为家畜生产繁殖性状潜在分子标记的分析研究
Jolanta Komisarek,Anna Walendowska
Jolanta Komisarek
An association analysis between T19C polymorphism in bovine PPARGC1A and productive and reproductive traits was performed in a population of 620 and 279 Polish Holstein-Friesian cows, respectively. No relationship was found with milk yield ...
DNA methylation, histone modifications and behaviour of AKAP95 during mouse oocyte growth and upon nuclear transfer of foreign chromatin into fully grown prophase oocytes [0.03%]
小鼠卵母细胞发育过程中以及异源染色质转入完全成熟的卵母细胞前中期时AKAP95的DNA甲基化、组蛋白修饰及行为模式研究
Steffen Hoffmann,Grzegorz Tomasik,Zbigniew Polanski
Steffen Hoffmann
The poor efficiency of mammalian cloning is due to inappropriate/incomplete epigenetic reprogramming of the donor chromatin. As the success in reprogramming of the donor nucleus may require activity of similar mechanisms which reprogram the...
An assessment of the breeding maturity of insemination boars based on ejaculate quality changes [0.03%]
基于精液质量变化评价人工授精公猪的配种成熟度
Dorota Banaszewska,Stanisław Kondracki
Dorota Banaszewska
We examined the sexual development and insemination capability of boars representing five breeds used at Polish sow insemination stations. The speed of attaining full breeding maturity by the boars and their insemination usefulness was asse...
New stands of species of the Paramecium aurelia complex (Ciliophora, Protozoa) in the Mediterranean region (Italy, Greece, Morocco) [0.03%]
地中海地区(意大利、希腊和摩洛哥)的 Aurelia 复合体新立克次氏虫属群落(Ciliophora,Protozoa)
Ewa Przyboś,Maria Rautian
Ewa Przyboś
New stands of species of the Paramecium aurelia complex are presented in the paper, P. primaurelia recorded in Italy (Pisa) and in Morocco (Marrakesh), P. biaurelia in Italy (Calabria), P. triaurelia in Morocco (Ifrane), P. pentaurelia in G...
Ewa Wójcik,Elzbieta Smalec
Ewa Wójcik
The study was aimed at evaluating the frequency of spontaneous sister chromatid exchange in Polish White Improved goats (Capra hircus). The mean number of SCEs/cell was 2.73 +/- 1.84. The effect of sex and age on SCE incidence was also inve...
Chromosome studies of Astyanax jacuhiensis Cope, 1894 (Characidae) from the Tramandai River Basin, Brazil, using in situ hybridization with the 18S rDNA probe, DAPI and CMA3 staining [0.03%]
采用原位杂交、DAPI和CMA3染色法研究巴西特兰达伊河鱼类阿斯特亚纳克斯jakuhiensis（鲤科）的染色体分布特征
Laura Lahr Lourenço da Silva,Lucia Giuliano-Caetano,Ana Lúcia Dias
Laura Lahr Lourenço da Silva
The genus Astyanax comprises 86 species of fish distributed in Brazilian river basins and is considered of the Incertae sedis group within the family Characidae. This study presents an analysis of 12 specimens of Astyanax jacuhiensis from t...
Karyotype of the bird blowfly, Protocalliphora falcozi Séguy, 1928 (Diptera, Calliphoridae) [0.03%]
鸟啄斑皮蝇Protocalliphora falcozi Séguy的染色体核型（双翅目：皮皮甲蜂科）
Milada Holecová,Maria Rozek,Anna Maryańska-Nadachowska et al.
Milada Holecová et al.
The karyotype structure of Protocalliphora falcozi is described for the first time. The diploid complement comprises 2n = 12, n(male) = 5+XY. Male mitotic plates include four pairs of long (metacentric) and one pair of medium-sized (submeta...
Number and size of nucleoli in the spermatocytes of chicken and Japanese quail [0.03%]
鸡和日本鹌鹑次级精母细胞核仁数目和大小的比较研究
Katarzyna Andraszek,Magdalena Gryzińska,Sebastian Knaga et al.
Katarzyna Andraszek et al.
Nucleoli are the product of nucleolus organizing region activity (NOR) of specific chromosomes. Their basic function is to synthetise ribosomal RNA precursors and promote the maturation and assemblage of preribosomal RNP molecules. Informat...
Leokadia Kiełbówna,Izabela Jedrzejowska
Leokadia Kiełbówna
Expression of transcriptor factors MyoD, Myf5, myogenin and MRF4 forms the basis of myogenesis. In Acrania, Pisces and Amphibia, as in Aves, myogenesis is initiated by MyoD. In Mammalia expression of Myf5 initiates myogenesis. Signal protei...
Discrete movements of foot epithelium during adhesive locomotion of a land snail [0.03%]
蜗牛陆地粘附运动中足上皮的离散运动现象
Tomasz Tyrakowski,Piotr Kaczorowski,Wojciech Pawłowicz et al.
Tomasz Tyrakowski et al.
During the adhesive locomotion of land snails a series of short dark transverse bands, called pedal or foot waves, is visible ifa moving snail's ventral surface is observed through a sheet of glass. Moreover, the mucus secreted from the ped...