RISOMIC inheritance was first reported in maize by MCCLINTOCK (1929) T in a study of segregating progenies derived from a spontaneous triploid (RANDOLPH and MCCLINTOCK 1926). Later MCCLINTOCK and HILL (1931) identified the primary trisome of chromosome IO, the shortest member of the maize chromosome complement which carries the r-g linkage group, and certain general observations on the known pr...

To allow chromosome segregation, topoisomerase II (topo II) must resolve sister chromatid intertwines (SCI) formed during deoxynucleic acid (DNA) replication. How this process extends to the full genome is not well understood. In budding yeast, the unique structure of the ribosomal DNA (rDNA) array is thought to cause late SCI resolution of this genomic region during anaphase. In this paper, we...

A protocol for intact DNA preparation from the basidiomycetous yeast Cryptococcus neoformans has been developed and applied to karyotyping C. neoformans isolates displaying different degrees of capsule formation. A total of 46 strains have been analyzed: 23 (50%) isolated from environmental samples (pigeon droppings), all of them belonging to C. neoformans var. neoformans; and 23 (50%) from cli...

Haplotypes are fundamental to fully characterize the diploid genome of an individual, yet methods to directly chart the unique genetic makeup of each parental chromosome are lacking. Here we introduce single-cell DNA template strand sequencing (Strand-seq) as a novel approach to phasing diploid genomes along the entire length of all chromosomes. We demonstrate this by building a complete haplot...

in the present study karyotype of mazani river buffalo was studied in comparison with those of azeri buffalo populations from iran. blood samples were taken from ten (5 males and 5 females) mazani buffaloes and thirty (15 males and 15 females) azeri buffaloes. the mazani buffaloes belong to mazendaran province and azeri buffaloes belong to west and east azerbaijan and ardebil provinces. blood l...

Chromosome number change (polyploidy and dysploidy) plays an important role in plant diversification and speciation. Investigating chromosome number evolution commonly entails ancestral state reconstruction performed within a phylogenetic framework, which is, however, prone to uncertainty, whose effects on evolutionary inferences are insufficiently understood. Using the chromosomally diverse pl...