A 9.1-kb gap in the genome reference map is shown to be a stable deletion/insertion polymorphism of ancestral origin.

Abstract:

:We show a mute 9.1-kb gap in the human genome reference map, unraveled by RDA studies, to be a worldwide deletion/insertion polymorphism of stable type. The molecular and population data presented suggest its origin from a unique ancestral transposition event in chromosomal region 22q11.2, overlapping the IglambdaV genes at about 450 kb from the cluster of the IglambdaJ-C genes. These findings are not meant to be just another report of a polymorphic marker suitable for population studies. Rather, we wish to stress that a large number of inborn mute gaps may be spread all over the genome and that the many RDA-detected microdeletions already available are efficient tools for the discovery of this otherwise hidden category of genetic variation. Apart from their possible impact on expression of structural genes, mute gaps must be filled for the reference map of our genome to be truly completed.

journal_name

Genomics

journal_title

Genomics

authors

Robledo R,Orru S,Sidoti A,Muresu R,Esposito D,Grimaldi MC,Carcassi C,Rinaldi A,Bernini L,Contu L,Romani M,Roe B,Siniscalco M

doi

10.1006/geno.2002.7014

subject

Has Abstract

pub_date

2002-12-01 00:00:00

pages

585-92

issue

6

eissn

0888-7543

issn

1089-8646

pii

S088875430297014X

journal_volume

80

pub_type

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