ArticleHeredity2026
A rare deletion of IhUF3GT1 in the Ivy-leaf morning glory eliminates anthocyanin-based pigmentation.
Article in Heredity, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors.
Funding
Abstract
Anthocyanin biosynthesis is a highly branched network with upstream mutations leading to the loss of many other branches beyond just anthocyanins like flavonols, isoflavonoids, and proanthocyanidins. Consequently, disentangling the specific effects of anthocyanins on plant fitness from those of other branches is difficult unless a mutant impacting the terminal step of anthocyanin biosynthesis can be found. We discovered an Ipomoea hederacea plant (Ivy-leaf morning glory) lacking anthocyanins due to a genetic deletion in the terminal step of the anthocyanin biosynthetic pathway. Anthocyanin loss follows a recessive, Mendelian inheritance pattern. Anthocyanin loss is perfectly correlated with a lack of expression of the anthocyanin biosynthesis gene IhUF3GT1 (anthocyanidin-3-O-glucosyltransferase). IhUF3GT1 is the gene most strongly and consistently differentially expressed between unpigmented and pigmented flowers in F
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