CHROMOSOME VARIATION IN CALLUS CELLS DERIVED FROM <i>SECALE CEREALE</i> L. WITH AND WITHOUT B-CHROMOSOME

Chromosome Number Variation in Iranian Populations of Acorus calamus

Different ploidy levels, diploid (2n=2x=24) to hexaploid (2n=6x=72) have been reported for Acorus calamus, a perennial medicinal plant. According to available information, there is a significant relationship between the ploidy level and essential oil compositions and medicinal properties of this important genetic resource. However, there is no information about the chromosome number of A. calam...

Chromosome variation in cell populations derived from pig kidney.

A stable line of pig cells (PK) which has been in cultivation for 5 years has been used to study chromosomal variation. This cell line, together with its variously clonally derived sublines, has continued to possess a diploid component. Tetraploid and heteroploid components were also present. X-ray treatment of the P K cells produced a number of reciprocal translocations, resulting in chromosom...

Karyotype and Sex-Chromosome Polymorphism in Nesokia indica, from Iran

Prompt cytomolecular identification of chromosome aberration in irradiated blood cells

Background: understanding the genomic alteration induced by ionizing radiation still remains to be a methodological challenge in genetic field. The energy released from this type of radiation can potentially causes structural and numerical alterations in lymphocytes, which in turn converts them into abnormal tumor cells. Chromosomal abnormalities associated with specific type of hematological m...

DHPLC Applications: Finding DNA Variation on the Y Chromosome

Denaturing High-Performance Liquid Chromatography (DHPLC) is a recently developed technique forthe detection of single nucleotide polymorphisms (SNPs) and mutations. It involves the comparisonbetween two or more DNAs as a mixture of denatured and reannealed PCR products. The methodologyis based on the principle of reversed phase liquid chromatography and uses a unique DNA sepa...