Quick Search:

uzh logo
Browse by:

Zurich Open Repository and Archive

Maintenance: Tuesday, 5.7.2016, 07:00-08:00

Maintenance work on ZORA and JDB on Tuesday, 5th July, 07h00-08h00. During this time there will be a brief unavailability for about 1 hour. Please be patient.

Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-31520

Lyle, R; Béna, F; Sarantis, G; Gehrig, C; Lopez, G; Schinzel, A; Lespinasse, J; Bottani, A; Dahoun, S; Taine, L; Doco-Fenzy, M; Cornillet-Lefèbvre, P; Pelet, A; Lyonnet, S; Toutain, A; Colleaux, L; Horst, J; Kennerknecht, I; Wakamatsu, N; Descartes, M; Franklin, J C; Florentin-Arar, L; Kitsiou, S; Yahya-Graison, E A; Costantine, M; Sinet, P M; Delabar, J M; Antonarakis, S E (2009). Genotype–phenotype correlations in Down syndrome identified by array CGH in 30 cases of partial trisomy and partial monosomy chromosome 21. European Journal of Human Genetics, 17(4):454-466.

[img] PDF - Registered users only
View at publisher


Down syndrome (DS) is one of the most frequent congenital birth defects, and the most common genetic cause of mental retardation. In most cases, DS results from the presence of an extra copy of chromosome 21. DS has a complex phenotype, and a major goal of DS research is to identify genotype–phenotype correlations. Cases of partial trisomy 21 and other HSA21 rearrangements associated with DS features could identify genomic regions associated with specific phenotypes. We have developed a BAC array spanning HSA21q and used array comparative genome hybridization (aCGH) to enable high-resolution mapping of pathogenic partial aneuploidies and unbalanced translocations involving HSA21. We report the identification and mapping of 30 pathogenic chromosomal aberrations of HSA21 consisting of 19 partial trisomies and 11 partial monosomies for different segments of HSA21. The breakpoints have been mapped to within ~85 kb. The majority of the breakpoints (26 of 30) for the partial aneuploidies map within a 10-Mb region. Our data argue against a single DS critical region. We identify susceptibility regions for 25 phenotypes for DS and 27 regions for monosomy 21. However, most of these regions are still broad, and more cases are needed to narrow down the phenotypic maps to a reasonable number of candidate genomic elements per phenotype.


99 citations in Web of Science®
104 citations in Scopus®
Google Scholar™



0 downloads since deposited on 19 Feb 2010
0 downloads since 12 months

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Medical Genetics
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Date:12 November 2009
Deposited On:19 Feb 2010 10:34
Last Modified:05 Apr 2016 13:58
Publisher:Nature Publishing Group
Publisher DOI:10.1038/ejhg.2008.214

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page