Plasmodium yoelii is an excellent model for studying malaria pathogenesis that is often intractable to investigate using human parasites; however, genetic studies of the parasite have been hindered by lack of genome-wide linkage resources. Here, we performed 14 genetic crosses between three pairs of P. yoelii clones/subspecies, isolated 75 independent recombinant progeny from the crosses, and c...

Background: Prader-Willi-like syndrome (PWLS) is believed to be caused by a variety of disruptions in genetic pathways both inside and outside of the genetic region implicated in PWS. By definition, PWLS does not demonstrate mutations in the 15q11-q13 region itself. It is a rare disorder whose clinical hallmarks include hypotonia, obesity, short extremities, and delayed development. This syndro...

Background: The advances in cytogenetic techniques during the last few years have permitted not only the study of large populations of wild and domestic animals, but also the detection of chromosome anomalies in embryos. Chromosomal abnormalities are the most common cause of embryonic and fetal mortality in mammals. Most reports of chromosome anomalies in parthenogenetic embryos describe numeri...

Objective Prenatal ultrasound features, associated anomalies and genetic abnormalities of microtia cases were analyzed to explore the feasibility value prenatal for diagnosis microtia. Methods The ultrasonographic anomalies, chromosome examination results follow-up 81 fetuses with congenital retrospectively. Results Among diagnosed after birth, 2 missed on ultrasound, 1 case was as unilateral b...

A mildly dysmorphic, 2 year old girl with mental retardation was found to have a small de novo terminal deletion of the long arm of chromosome 14, del(14)(q32.3). She was found to have features in common with two previous terminal deletion cases and particularly with the well documented ring 14 syndrome, although seizures, a characteristic feature of ring 14, were notably absent.

A short review of main cytogenetic features of insects belonging to the sister neuropteran families Myrmeleontidae (antlions) and Ascalaphidae (owlflies) is presented, with a particular focus on their chromosome numbers and sex chromosome systems. Diploid male chromosome numbers are listed for 37 species, 21 genera from 9 subfamilies of the antlions as well as for seven species and five genera ...

AIM To study the occurrence of Y chromosome microdeletions in azoospermic patients with Klinefelter's syndrome (KFS). METHODS Blood and semen samples were collected from azoospermic patients with KFS (n = 14) and a control group of men of proven fertility (n = 13). Semen analysis was done according to World Health Organization (WHO) guidelines. Blood samples were processed for karyotyping, fl...

Uniparental disomy (UPD) is the inheritance of a chromosome pair from one parent and is increasingly recognized as a cause of abnormal phenotypes either due to imprinted genes or, in the case of isodisomy, to homozygosity of recessive alleles. Maternal uniparental disomy for chromosome 14 (matUPD[14]) may cause a characteristic phenotype including precocious puberty. Central precocious puberty ...

The concept of security has shifted over the past 15 years, and has moved beyond a focus solely on the security of nations to include a focus on the security of individuals and communities. 1 However, it was not until the 1990s that the concept of human security began to take clearer shape after it was reappraised within the UN. In particular, the UN Development Programme's (UNDP) Human Develop...