Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Cytogenet Genome Res. 2005;109(1-3):27-33.

Unraveling the genome structure of polyploids using FISH and GISH; examples of sugarcane and banana.

Author information

  • 1CIRAD, UMR1096, Montpellier, France. dhont@cirad.fr

Abstract

We review here the progress that has been achieved using molecular cytogenetics to analyze the genome structure of sugarcane (Saccharum spp) and banana (Musa spp), two crops that are polyploid, of interspecific origin and with chromosomes not distinguishable by their gross morphology. In Saccharum, molecular cytogenetics enabled us to determine the basic chromosome number of two species, Saccharum officinarum and S. spontaneum, involved in the origin of modern cultivars, to quantify the proportion of chromosomes of these species in the genome of modern cultivars, to assess the extent of interspecific chromosome recombination and to clarify the origin of the related species S. barberi. These techniques are also used to monitor introgression with related genera. In Musa, GISH enabled us to differentiate the four genomes involved in banana cultivars and allowed us to determine the genome constitution of several cultivars. FISH was used to analyze the distribution of repeated sequences along the genome.

Copyright 2005 S. Karger AG, Basel.

PMID:
15753555
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for S. Karger AG, Basel, Switzerland
    Loading ...
    Write to the Help Desk