Fanconi anemia (FA) is a chromosome instability syndrome, characterized by progressive pancytopenia and cancer susceptibility. Other cellular features of FA cells are hypersensitivity to DNA cross-linking agents and accelerated telomere shortening. We have quantified overall genome chromosome fragility and euploidy as well as chromosomes 7 and 8 aneuploidy in peripheral blood lymphocytes from a...

Cdc20 (cell division cycle 20) and Cdh1 are the activating subunits of APC (anaphase-promoting complex), an E3-ubiquitin ligase that drives cells into anaphase by inducing degradation of cyclin B and the anaphase inhibitor securin. To prevent chromosome missegregation due to early degradation of cyclin B and securin, mitotic checkpoint protein complexes consisting of BubR1, Bub3 and Mad2 bind t...

We report the discovery of a neo-sex chromosome in the monarch butterfly, Danaus plexippus, and several of its close relatives. Z-linked scaffolds in the D. plexippus genome assembly were identified via sex-specific differences in Illumina sequencing coverage. Additionally, a majority of the D. plexippus genome assembly was assigned to chromosomes based on counts of one-to-one orthologs relativ...

conclusions this study revealed allele frequency of some strs on chromosome 12 and 16 for the first time in iran, and indicated differences between subjects with metabolic syndrome and subjects in the control group. results there was no significant deviation in allelic frequencies from hardy-weinberg equilibrium for all the studied markers except for d12s1632 and d12s329. the long alleles in d1...

itp is an autoimmune blood disorder in which platelet destruction is mediated by anti-platelet antibodies. the mechanisms of anti-platelet antibodies development are still a little known. the rate of some bacterial or viral agents in cause of itp is well known. recently, some study proposed that h pylori infection may be associated with itp and h pylori eradication can improves platelet counts ...

BACKGROUND AND AIMS For 84 years, botanists have relied on calculating the highest common factor for series of haploid chromosome numbers to arrive at a so-called basic number, x. This was done without consistent (reproducible) reference to species relationships and frequencies of different numbers in a clade. Likelihood models that treat polyploidy, chromosome fusion and fission as events with...

Myelodysplastic syndromes (MDS) with isolated deletion of chromosome arm 5q (del(5q)) have a good prognosis with low risk of transformation to acute myeloid leukemia (AML). Laboratory investigations typically demonstrate macrocytic anemia with preserved or increased platelet counts, and characteristic hypolobated megakaryocytes in the marrow (Figure 1A). Recent studies have provided significant...

BACKGROUND Chronic myeloproliferative disorders (CMPD) originate from a pluripotent haematopoietic progenitor cell but show a marked degree of heterogeneity, especially between Philadelphia chromosome positive and negative disease entities. Abnormal megakaryopoiesis is a frequent finding in CMPD, often associated with thrombocythaemic cell counts. Recent experimental data have suggested that th...

Aggressiveness and reproduction differed among four geographical populations of M. arenaria on six soybean cultivars in field microplots. These differences were consistent over 3 years. The populations did not differ in virulence; i.e., population by cultivar interactions were not significant. Perineal pattern morphology, the North Carolina differential host test, chromosome counts of immature ...