The proximal region of chromosome 15q is predisposed to a wide range of structural rearrangements. Deletions of this region, spanning approximately 4 Mb, can be paternally or maternally derived and result in Prader-Willi syndrome and Angelman syndrome, respectively. Additional copies of the Prader-Willi/Angelman syndrome critical region (PWACR) can occur as interstitial duplications and triplic...

The proximal region of chromosome 15q is predisposed to a wide range of structural rearrangements. Deletions of this region, spanning approximately 4 Mb, can be paternally or maternally derived and result in Prader-Willi syndrome and Angelman syndrome, respectively. Additional copies of the Prader-Willi/Angelman syndrome critical region (PWACR) can occur as interstitial duplications and triplic...

Supernumerary chromosome segments are known to harbor different transposons from their essential counterparts. The aim of this study was to investigate the role of transposons in the origin and evolution of supernumerary segments in the asexual fungal pathogen Fusarium virguliforme. We compared the genomes of 11 isolates comprising six Fusarium species that cause soybean sudden death syndrome (...

Supernumerary marker chromosomes (SMCs) are rare chromosomal abnormalities resulting in partial trisomy of specific genomic regions with characteristic phenotypic effects. Twenty six cases with autosomal SMCs are reported. Four were identified prenatally and 22 postnatally in children, aged from 8 days to 15 years, who were referred for genetic evaluation because of various congenital anomalies...

Results: A structural chromosomal abnormality was observed in 95 cases. The most frequently observed structural abnormalities were balanced translocations with a frequency of 53.7% (51 cases) followed by unbalanced translocations (16.8%), inversions (11.6%), supernumerary marker chromosomes (8.4%), duplications (4.2%), deletions and ring chromosomes (2.1%) and complex translocation (1.1%). rare...

By SEnclo MANCINELLI, JOHN R. DURANT, AND WILLIAM J. HAMMACK T SOMEWHAT CONSISTENT cytogenic changes in patients with multiple myeloma have recently been reported. Houston et al.,’ using phytohemagglutinin (PHA) stimulated peripheral blood cells, observed abnormal chromosomes in fifteen of twenty-four patients. The abnormal chromosomes were as large or larger than normal A group members with ce...