Analysis of high-identity segmental duplications in the grapevine genome.

ABSTRACT:

Background

Segmental duplications (SDs) are blocks of genomic sequence of 1-200 kb that map to different loci in a genome and share a sequence identity > 90%. SDs show at the sequence level the same characteristics as other regions of the human genome: they contain both high-copy repeats and gene sequences. SDs play an important role in genome plasticity by creating new genes and modeling genome structure. Although data is plentiful for mammals, not much was known about the representation of SDs in plant genomes. In this regard, we performed a genome-wide analysis of high-identity SDs on the sequenced grapevine (Vitis vinifera) genome (PN40024).

Results

We demonstrate that recent SDs (> 94% identity and >= 10 kb in size) are a relevant component of the grapevine genome (85 M

SUBMITTER: Giannuzzi G 

PROVIDER: S-EPMC3179966 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature