Identification of two anthocyanidin reductase genes and three red-brown soybean accessions with reduced anthocyanidin reductase 1 mRNA, activity, and seed coat proanthocyanidin amounts.

Abstract excerpt

Anthocyanidin reductase (ANR; EC 1.3.1.77) catalyzes a key step in the biosynthesis of proanthocyanidins (PAs; also known as condensed tannins), flavonoid metabolites responsible for the brown pigmentation of seeds. Here, two ANR genes (ANR1 and ANR2) from the seed coat of brown soybean (Glycine max (L.) Merr.) have been isolated and their enzymatic function confirmed for the reduction of cyanidin to...

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