Effects of TaMTL-Edited Mutations on Grain Phenotype and Storage Component Composition in Wheat

Wheat nutrition and processing-quality are primarily based on the endosperm ingredients. However, effect of embryos grain traits components remains unclear. In this study, we found that in cross-pollinated self-pollinated progenies four wheat mtl mutants (mtl-A, mtl-AD, mtl-BD, mtl-ABD) haploid induction rates were 0–15.6% 0–14.1%, embryo abortion 0–27.4% 0–24.1%, respectively, which mtl-A had no development. The embryoless grains (ELG) comparable to normal (NG) from mtl-ABD length, width thousand-kernel weight, but significantly less than those NG mutant mtl-A. During filling period, similar ELG ratio amount starch granule (SG) protein body (PB) NG. At maturity stage, morphological features A-type B-type SG mutants; however, amylose, gliadin, glutenin contents higher ELG, total starch, albumin globulin Our results clarified composition crop, provided new clues for studying development their interaction plants.