Generation of plants with altered oil, protein or fiber content

A method of producing a plant having an improved meal quality phenotype, said method comprising:

• a) introducing into progenitor cells of the plant a heterologous polynucleotide that encodes or is complementary to a sequence that encodes an HIO polypeptide having the amino acid sequence set forth in SEQ ID NO:
• 2, or a polypeptide having an amino acid sequence at least 95% identical to the amino acid sequence as set forth in SEQ ID NO:
• 2;
• and
• b) growing the transformed progenitor cells to produce a transgenic plant, wherein the heterologous polynucleotide is expressed, and the transgenic plant exhibits an improved meal quality phenotype relative to control plants,
• thereby producing the improved meal quality phenotype in the plant.