Hostname: page-component-848d4c4894-8bljj Total loading time: 0 Render date: 2024-06-23T17:59:20.217Z Has data issue: false hasContentIssue false

Molecular characterization of isochromosomes of Xq

Published online by Cambridge University Press:  01 November 1997

R. S. JAMES
Affiliation:
Wessex Regional Genetics Laboratory, Salisbury District Hospital, Salisbury, Wilts SP2 8BJ, UK
P. DALTON
Affiliation:
Wessex Regional Genetics Laboratory, Salisbury District Hospital, Salisbury, Wilts SP2 8BJ, UK
K. GUSTASHAW
Affiliation:
Department of Genetics, Case Western Reserve University, 2109 Adelbert Road, Cleveland OH 44106, USA
D. J. WOLFF
Affiliation:
Department of Genetics, Case Western Reserve University, 2109 Adelbert Road, Cleveland OH 44106, USA
H. F. WILLARD
Affiliation:
Department of Genetics, Case Western Reserve University, 2109 Adelbert Road, Cleveland OH 44106, USA
C. MITCHELL
Affiliation:
Wessex Regional Genetics Laboratory, Salisbury District Hospital, Salisbury, Wilts SP2 8BJ, UK
P. A. JACOBS
Affiliation:
Wessex Regional Genetics Laboratory, Salisbury District Hospital, Salisbury, Wilts SP2 8BJ, UK
Get access

Abstract

We have undertaken a study of 35 patients with i(Xq) to determine whether those that are maternally derived originate by similar mechanisms to those that are paternally derived. Isochromosome formation is not associated with increased parental age and >90% of i(Xq) contain proximal Xp sequences suggesting that centromere misdivision is not a common mechanism of formation. Our results indicate that the majority of i(Xq) originate from a single X chromosome and the usual mechanisms of formation do not appear to differ according to the parent of origin.

Type
Research Article
Copyright
© University College London 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)