Polyploidization as a retraction force in plant genome evolution: sequence rearrangements in triticale.

ABSTRACT:

Background

Polyploidization is a major evolutionary process in plants where hybridization and chromosome doubling induce enormous genomic stress and can generate genetic and epigenetic modifications. However, proper evaluation of DNA sequence restructuring events and the precise characterization of sequences involved are still sparse.

Methodology/principal findings

Inter Retrotransposons Amplified Polymorphism (IRAP), Retrotransposons Microsatellite Amplified Polymorphism (REMAP) and Inter Simple Sequence Repeat (ISSR) largely confirmed the absence of any intraspecific variation in wheat, rye and triticale. The comparative analysis of banding profiles between wheat and rye inbred lines revealed 34% of monomorphic (common to both parental species) bands for the ten different

SUBMITTER: Bento M 

PROVIDER: S-EPMC2151762 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature