Slow darkening of pinto bean seed coat is associated with significant metabolite and transcript differences related to proanthocyanidin biosynthesis.
Kishor DuwadiRyan S AustinHemanta R MainaliKirstin BettFrédéric MarsolaisSangeeta DhaubhadelPublished in: BMC genomics (2018)
RNAseq analysis and metabolite data of seed coat tissue from CDC Pintium and 1533-15 revealed that the whole proanthocyanidin biosynthetic pathway was downregulated in 1533-15. Additionally, genes that encode for putative transporter proteins were also downregulated in 1533-15 suggesting both synthesis and accumulation of proanthocyanidin is reduced in SD pintos.