A wheat plant of the species Triticum aestivum comprising one or more non-transgenic mutations in both SBEIIa alleles of the SBEIIa gene in each of the three genomes A, B and D; wherein the one or more mutations in the SBEIIa alleles of the SBEIIa gene of the A genome is a point mutation selected from G472E at a position corresponding to G472 of SEQ ID NO:2, G467E at a position corresponding to G467 of SEQ ID NO:2, G482E at a position corresponding to G482 of SEQ ID NO:2, W436* at a position corresponding to W436 of SEQ ID NO:2 wherein * indicates a stop codon, or a Guanine to Adenine splice junction mutation at a position corresponding to nucleotide 5301 in SEQ ID NO:1; the one or more mutations in the SBEIIa alleles of the SBEIIa gene of the B genome is a point mutation selected from G467E at a position corresponding to G467 of SEQ ID NO:4, G472R or G472E at a position corresponding to G472 of SEQ ID NO:4, W436* at a position corresponding to W436 of SEQ ID NO:4 wherein * indicates a stop codon, or a Guanine to Adenine splice junction mutation at a position corresponding to nucleotide 2945 or 5073 in SEQ ID NO:3; the one or more mutations in the SBEIIa alleles of the SBEIIa gene of the D genome is a point mutation selected from W442* at a position corresponding to W442 of SEQ ID NO:6 wherein * indicates a stop codon, D467N at a position corresponding to D467 of SEQ ID NO:6, G374E at a position corresponding to G374 of SEQ ID NO:6, W432* at a position corresponding to W432 of SEQ ID NO:6 wherein * indicates a stop codon, or a Guanine to Adenine splice junction mutation at a position corresponding to nucleotide 6538 in SEQ ID NO:5; and wherein grain from said wheat plant has an increased amylose level as compared to grain from a wild type wheat plant. the one or more mutations in the SBEIIa alleles of the SBEIIa gene of the A genome is a point mutation selected from G472E at a position corresponding to G472 of SEQ ID NO:2, G467E at a position corresponding to G467 of SEQ ID NO:2, G482E at a position corresponding to G482 of SEQ ID NO:2, W436* at a position corresponding to W436 of SEQ ID NO:2 wherein * indicates a stop codon, or a Guanine to Adenine splice junction mutation at a position corresponding to nucleotide 5301 in SEQ ID NO:1; the one or more mutations in the SBEIIa alleles of the SBEIIa gene of the B genome is a point mutation selected from G467E at a position corresponding to G467 of SEQ ID NO:4, G472R or G472E at a position corresponding to G472 of SEQ ID NO:4, W436* at a position corresponding to W436 of SEQ ID NO:4 wherein * indicates a stop codon, or a Guanine to Adenine splice junction mutation at a position corresponding to nucleotide 2945 or 5073 in SEQ ID NO:3; the one or more mutations in the SBEIIa alleles of the SBEIIa gene of the D genome is a point mutation selected from W442* at a position corresponding to W442 of SEQ ID NO:6 wherein * indicates a stop codon, D467N at a position corresponding to D467 of SEQ ID NO:6, G374E at a position corresponding to G374 of SEQ ID NO:6, W432* at a position corresponding to W432 of SEQ ID NO:6 wherein * indicates a stop codon, or a Guanine to Adenine splice junction mutation at a position corresponding to nucleotide 6538 in SEQ ID NO:5; and wherein grain from said wheat plant has an increased amylose level as compared to grain from a wild type wheat plant.