High resolution analysis of meiotic chromosome structure and behaviour in barley (Hordeum vulgare L.).

ABSTRACT: Reciprocal crossing over and independent assortment of chromosomes during meiosis generate most of the genetic variation in sexually reproducing organisms. In barley, crossovers are confined primarily to distal regions of the chromosomes, which means that a substantial proportion of the genes of this crop rarely, if ever, engage in recombination events. There is potentially much to be gained by redistributing crossovers to more proximal regions, but our ability to achieve this is dependent upon a far better understanding of meiosis in this species. This study explores the meiotic process by describing with unprecedented resolution the early behaviour of chromosomal domains, the progression of synapsis and the structure of the synaptonemal complex (SC). Using a combination of molecular cyto

SUBMITTER: Phillips D 

PROVIDER: S-EPMC3382580 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature