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World of CitrusWorld of CitrusDoppio Sanguigno
Eugenio Butelli et al. · ResearchGate figure page · March 2012
The visible article context states that modern blood-orange varieties derive from older Italian varieties including Doppio Sanguigno and describes competing historical-origin hypotheses. This page gives no Doppio-specific genotype, measurement, or fruit trial result.
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Angelo Ciacciulli; Concetta Licciardello · CREA futuro · 2023-05-26
https://creafuturo.crea.gov.it/9810 (opens in a new tab)
The article names Doppio Sanguigno among traditional varieties addressed by CREA-OFA Acireale’s assisted-evolution research. It does not report a Doppio-specific successful edit or fruit result; specific examples later in the article concern other varieties.
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Robert Willard Hodgson · University of California, Division of Agricultural Sciences · 1967
Robert Willard Hodgson’s Chapter 4, “Horticultural Varieties of Citrus.” The Doppio Sanguigno entry is in the blood oranges section (section begins p. 470); the individual entry’s printed page was not verified. It describes the cultivar as Italian and midseason, with seeded, rough-textured fruit, and discusses fruit form, rind, flesh pigmentation, and storage.
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Eugenio Butelli et al. · The Plant Cell · 2012-03-16
https://pmc.ncbi.nlm.nih.gov/articles/PMC3336134/ (opens in a new tab)
The primary paper reports that the Ruby-locus insertions in Doppio Sanguigno and several other Italian blood-orange accessions were identical and constituted the complete Tcs1 retrotransposon. Its Figure 2A caption also identifies Doppio Sanguigno in the genomic DNA blot. This is evidence for the accession analyzed in the study, not a survey of every Doppio clone.
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