Sweet wheat

Genes Genet Syst. 2006 Oct;81(5):361-5. doi: 10.1266/ggs.81.361.

Abstract

The major components of storage starch are amylose and amylopectin, and in wheat, both an amylose-free mutant lacking granule-bound starch synthase I and a high-amylose mutant lacking starch synthase IIa have been produced recently. Here, we report the production of an amylose-free/ high-amylose double mutant. This double mutant has kernel and carbohydrate characteristics that are remarkably different than those of either single mutant, including a dramatically shrunken seed shape. Surprisingly, the double mutant has maltose and sucrose levels that are high enough to make it worthy of being called "sweet wheat".

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amylose / metabolism*
  • Mutation*
  • Plant Proteins / genetics*
  • Starch Synthase / genetics*
  • Triticum / enzymology
  • Triticum / genetics*

Substances

  • Plant Proteins
  • Amylose
  • granule-bound starch synthase I
  • starch synthase II
  • Starch Synthase