A gene-based RFLP map of petunia (vol 100, pg 899, 2000)

Due in large part to the data accumulated from years of classic genetic ana lysis, petunia (Petunia hybrida Vilm) has remained a useful model system, p articularly for studies of gene regulation and genome structure. We have us ed three segregating populations of petunia, including those serving as the source of an earlier actin gene RFLP map, for RFLP mapping of several addi tional genes. Twenty-seven loci have been merged with 11 previously mapped morphological and biochemical markers. Our results contribute additional ev idence to reports of a high degree of genome plasticity and segregation dis tortion in this species and suggest that petunia may be a useful plant syst em for detailed analysis of plant genome organization, activity and evoluti on.