Different kinds of heterochromatin in higher plant chromosomes.

Chromosome C-banding in Mus musculus L.1766 Strains Shows a Fixed Position for the Centromere and Variable Amounts in Different Populations

Three subspecies of Mus musculus have been recognized in Iran so far. The house mouse (genus0T 0T2TMus2T, species0T 0T2TMus musculus2T) are recognized for their highly conserved morphology and chromosomal structure, but some chromosomal characters offer accurate taxonomic markers in this species that has been shown any unambiguous diagnostic morphological traits. Among the chromosomal character...

P-200: Frequency of Heterochromatin Polymorphisms in Couples with Recurrent Abortions in Patients Refer to IVF Clinic of Yazd

Background: Recurrent pregnancy loss (RPL) is a multifactorial problem associated with genetic abnormalities reflected by inherited disorders. The aim of the present study was to investigate the contribution of heterochromatin polymorphism in couples with recurrent miscarriages compared with couples without miscarriages. Materials and Methods: Over a 3 year period, we made a study of the diagno...

Patterns of heterochromatin distribution in plant chromosomes

Toward a cytological characterization of the rice genome.

Rice (Oryza sativa L.) will be the first major crop, as well as the first monocot plant species, to be completely sequenced. Integration of DNA sequence-based maps with cytological maps will be essential to fully characterize the rice genome. We have isolated a set of 24 chromosomal arm-specific bacterial artificial chromosomes to facilitate rice chromosome identification. A standardized rice k...

Feulgen banding of heterochromatin in plant chromosomes.

Feulgen bands can be obtained at the sites of constitutive heterochromatin in the chromosomes of Anemone blanda, Fritillaria lanceolata and Scilla siberica, simply by means of a short or extended acid hydrolysis. Extended hydrolysis gives positive bands in A. blanda and F. lanceolata and negative bands in S. siberica. Short hydrolysis gives no bands in A. blanda and S. siberica but gives negati...