Correction to: How common is germinal mosaicism that leads to premeiotic aneuploidy in the female?

The original article unfortunately contained a mistake. In the online version of the paper, the words "MII (metaphase II)-PB1 (1st polar body) complex (MII-PB1 complex)" in table 1 are incorrectly placed.

How common is germinal mosaicism that leads to premeiotic aneuploidy in the female?

Purpose: Molecular cytogenetic analysis has confirmed that a proportion of apparently meiotic aneuploidy may be present in the germ cells prior to the onset of meiosis, but there is no clear perception of its frequency. The aim of this review is to assess the evidence for premeiotic aneuploidy from a variety of sources to arrive at an estimate of its overall contribution to oocyte aneuploidy in humans.

Methods: Relevant scientific literature was covered from 1985 to 2018 by searching PubMed databases with search terms: gonadal/germinal mosaicism, ovarian mosaicism, premeiotic aneuploidy, meiosis and trisomy 21.

Male and female meiotic behaviour of an intrachromosomal insertion determined by preimplantation genetic diagnosis.

Background: Two related family members, a female and a male balanced carrier of an intrachromosomal insertion on chromosome 7 were referred to our centre for preimplantation genetic diagnosis. This presented a rare opportunity to investigate the behaviour of the insertion chromosome during meiosis in two related carriers. The aim of this study was to carry out a detailed genetic analysis of the preimplantation embryos that were generated from the three treatment cycles for the male and two for the female carrier.