‘Niagara Steck’ and Variegada’ are two grapevine varieties that arose spontaneously as somatic mutants of Rosada’. Berries characterize at young stages exhibiting a remarkable brown reticulated structure on the epidermis which develops into brown-bronze russet-like berries ripe. The mature have strongly acidic flesh. shows notable variegation in leaves berries. Meiotic studies were carried out ...

to remove unfavorable traits of new cereal tritipyrum (2n=6x=42, aabbebeb), various crosses between primary tritipyrum lines (female) with iranian bread wheat varieties (2n=6x=42, aabbdd) was performed and a f2 selfing population consisted of 1810 possible secondary tritipyrum seeds (2n=6x=42, aabbd(0-14) eb(0-14)) were produced. the chromosome constitution and homology index of 11 plants of th...

Chromosome counts and karyotype characterization have proved to be important features of a genome. Chromosome changes during the diversification of ants might play an important role, given the diversity and success of Formicidae. Comparative karyotype analyses on ants have enriched and helped ant systematics. Among leafcutter ants, two major chromosome counts have been described, one frequent i...

Repeated DNAs from the constitutive heterochromatin of human chromosomes 1 and 18 were used as probes in nonradioactive in situ hybridization experiments to define specific numerical and structural chromosome aberrations in three human glioma cell lines and one neuroblastoma cell line. The number of spots detected in interphase nuclei of these tumor cell lines and in normal diploid nuclei corre...

Long-term exposure to low doses of ionizing radiation may affect cells and tissues and result in various adverse health effects. The purpose of this study was to investigate whether chromosome aberrations and haematological alterations could be used as biomarkers of possible radiation injury in workers exposed to ionizing radiation. Groups totalling 323 medical professionals handling X-ray equi...

Chiasmata in diplotene bivalents are located at the points of physical exchange (crossing-over) between homologous chromosomes. We have studied chiasma distribution within chicken lampbrush chromosome 1 to estimate the crossing-over frequency between chromosome landmarks. The position of the centromere and chromosome region 1q3.3-1q3.6 on lampbrush chromosome 1 were determined by comparative ph...

In the flora of Korea, Carex L. is one most species-rich genera. Among nearly 157 taxa, less than 30 have had their chromosome numbers reported. We report meiotic eight taxa from Korean populations, which include first count for C. accrescens Ohwi (n = 37II) and investigations populations three taxa: bostrychostigma Maxim. 22II), lanceolata Boott 36II), paxii Kük. 38II). species, counts observe...

Total white blood cell (WBC) and neutrophil counts are lower among individuals of African descent due to the common African-derived "null" variant of the Duffy Antigen Receptor for Chemokines (DARC) gene. Additional common genetic polymorphisms were recently associated with total WBC and WBC sub-type levels in European and Japanese populations. No additional loci that account for WBC variabilit...