Genome-scale transcriptional analyses of first-generation interspecific sunflower hybrids reveals broad regulatory compatibility.

ABSTRACT:

Background

Interspecific hybridization creates individuals harboring diverged genomes. The interaction of these genomes can generate successful evolutionary novelty or disadvantageous genomic conflict. Annual sunflowers Helianthus annuus and H. petiolaris have a rich history of hybridization in natural populations. Although first-generation hybrids generally have low fertility, hybrid swarms that include later generation and fully fertile backcross plants have been identified, as well as at least three independently-originated stable hybrid taxa. We examine patterns of transcript accumulation in the earliest stages of hybridization of these species via analyses of transcriptome sequences from laboratory-derived F1 offspring of an inbred H. annuus cultivar and a wild H. petiolaris a

SUBMITTER: Rowe HC 

PROVIDER: S-EPMC3679827 | biostudies-literature | 2013 May

REPOSITORIES: biostudies-literature