What is it about?
Raspberry fruit colour comes from pigments called anthocyanins. In the apricot-coloured raspberry ‘Varnes’, we found a jumping gene (transposon) in a key anthocyanin gene (Ans-1), which disrupts pigment production. This explains why apricot raspberries appear in breeding programs.
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Why is it important?
This study reveals the genetic cause of apricot fruit colour in raspberry for the first time. By combining multi omics techniques, including metabolomics, long-read sequencing and transcriptomics, it identifies a transposon disrupting a key pigment gene. This finding helps breeders predict and select for fruit colour in raspberry breeding programmes.
Read the Original
This page is a summary of: A CACTA-like transposon in the Anthocyanidin synthase 1 (Ans-1) gene is responsible for apricot fruit colour in the raspberry (Rubus idaeus) cultivar ‘Varnes’, PLOS One, February 2025, PLOS,
DOI: 10.1371/journal.pone.0318692.
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