Selection and molecular characterization of a lipoxygenase-free soybean mutant line induced by gamma irradiation.

A lipoxygenase-free soybean mutant line (H70) induced by gamma ray was selected and its detailed information about the lipoxygenase was analyzed by comparison of DNA sequence. Soybean seeds contain three lipoxygenase enzymes, which induce a beany or grassy flavor. The elimination of lipoxygenases can reduce the poor stability and off-flavors of soybean oil and protein products.

Identification of quantitative trait loci controlling linolenic acid concentration in PI483463 (Glycine soja).

The QTLs controlling alpha-linolenic acid concentration from wild soybean were mapped on nine soybean chromosomes with various phenotypic variations. New QTLs for alpha-linolenic acid were detected in wild soybean. Alpha-linolenic acid (ALA) is a polyunsaturated fatty acid desired in human and animal diets.

Comparative gene expression analysis in a highly anthocyanin pigmented mutant of colorless chrysanthemum.

In this study, we investigated differentially expressed genes between the original chrysanthemum cultivar 'Argus' with white flower color and its gamma-ray irradiated mutant 'ARTI-purple' with purple flower color. The expression levels of anthocyanin biosynthetic genes were not associated with anthocyanin accumulations of Argus and ARTI-purple. Expressed sequence tags (ESTs) analysis was performed to identify a novel cDNAs encoding enzymes of specific plant metabolic pathways and the biological effects of gamma-ray mutation through alterations in expression in each flower.

The identification of candidate radio marker genes using a coexpression network analysis in gamma-irradiated rice.

Plant physiological and biochemical processes are significantly affected by gamma irradiation stress. In addition, gamma-ray (GA) differentially affects gene expression across the whole genome. In this study, we identified radio marker genes (RMGs) responding only to GA stress compared with six abiotic stresses (chilling, cold, anoxia, heat, drought and salt) in rice.