Allele segregation analysis of F₁ hybrids between independent Brassica allohexaploid lineages.

ABSTRACT: In the Brassica genus, we find both diploid species (one genome) and allotetraploid species (two different genomes) but no naturally occurring hexaploid species (three different genomes, AABBCC). Although hexaploids can be produced via human intervention, these neo-polyploids have quite unstable genomes and usually suffer from severe genome reshuffling. Whether these genome rearrangements continue in later generations and whether genomic arrangements follow similar, reproducible patterns between different lineages is still unknown. We crossed Brassica hexaploids resulting from different species combinations to produce five F₁ hybrids and analyzed the karyotypes of the parents and the F₁ hybrids, as well as allele segregation in a resulting test-cross population via mo

SUBMITTER: Quezada-Martinez D 

PROVIDER: S-EPMC9470611 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature