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ps1 footprint alleles carrying in-frame insertions. (A) Plant lycopene-β-cyclase partial sequence alignments (Singh et al. 2003). The sequence of in-frame amino acid insertions in each ps1 footprint allele is denoted by arrows. (B) Phenotypes of seedlings homozygous for ps1 alleles induced by in-frame amino acid insertions. Seedlings homozygous for the ps1′-m6.1 allele failed to germinate.
