A saturated SSR/DArT linkage map of Musa acuminata addressing genome rearrangements among bananas.

ABSTRACT:

Background

The genus Musa is a large species complex which includes cultivars at diploid and triploid levels. These sterile and vegetatively propagated cultivars are based on the A genome from Musa acuminata, exclusively for sweet bananas such as Cavendish, or associated with the B genome (Musa balbisiana) in cooking bananas such as Plantain varieties. In M. acuminata cultivars, structural heterozygosity is thought to be one of the main causes of sterility, which is essential for obtaining seedless fruits but hampers breeding. Only partial genetic maps are presently available due to chromosomal rearrangements within the parents of the mapping populations. This causes large segregation distortions inducing pseudo-linkages and difficulties in ordering markers in the linkage groups. T

SUBMITTER: Hippolyte I 

PROVIDER: S-EPMC2923539 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature