Fig. 1

Chromosomal ploidy results of the embryos (A–F) from patient 1. In this pedigree, a total of 11 embryos (A–K) were obtained and subjected to chromosomal analysis, and the chromosomal ploidy results of the embryos (G–K) were supplied in Supplementary Figure S1 in Additional file 1. Three embryos, C, D, and E, had normal ploidy. Embryos B and F, were identified as having abnormal chromosomes 2 and 5 and were used as reference embryos for the identification of translocation breakpoint. Abnormal chromosome 1 and trisomy 15p mosaicism was detected in embryo A. Red and blue dots indicate the copy number of different chromosomes. Each point is at 1 Mb resolution. The green horizontal line indicates an abnormal copy number