TY - JOUR 
A1 - Butelli, Eugenio
AU - García-Lor, Andrés
AU - Licciardello, Concetta
AU - Las Casas, Giuseppina
AU - Hill, Lionel
AU - Reforgiato Recupero, Giuseppe
AU - Keremane, Manjunath L
AU - Ramadugu, Chandrika
AU - Krueger, Robert
AU - Xu, Qiang
AU - Deng, Xiuxin
AU - Fanciullino, Anne-Laure
AU - Froelicher, Yann
AU - Navarro, Luis
AU - Martin, Cathie
T1 - Changes in anthocyanin production during domestication of Citrus
Y1 - 2017
SN - 1532-2548
UR - http://hdl.handle.net/20.500.11939/6686
AB - Mandarin (Citrus reticulata), citron (Citrus medica), and pummelo (Citrus maxima) are important species of the genus Citrus and parents of the interspecific hybrids that constitute the most familiar commercial varieties of Citrus: sweet orange, sour orange, clementine, lemon, lime, and grapefruit. Citron produces anthocyanins in its young leaves and flowers, as do species in genera closely related to Citrus, but mandarins do not, and pummelo varieties that produce anthocyanins have not been reported. We investigated the activity of the Ruby gene, which encodes a MYB transcription factor controlling anthocyanin biosynthesis, in different accessions of a range of Citrus species and in domesticated cultivars. A white mutant of lemon lacks functional alleles of Ruby, demonstrating that Ruby plays an essential role in anthocyanin production in Citrus. Almost all the natural variation in pigmentation by anthocyanins in Citrus species can be explained by differences in activity of the Ruby gene, caused by point mutations and deletions and insertions of transposable elements. Comparison of the allelic constitution of Ruby in different species and cultivars also helps to clarify many of the taxonomic relationships in different species of Citrus, confirms the derivation of commercial varieties during domestication, elucidates the relationships within the subgenus Papeda, and allows a new genetic classification of mandarins.
KW - MYB transcription factors
KW - Phylogenetic analysis.
KW - F30  Plant genetics and breeding
KW - Anthocyanins
KW - Citrus
KW - Domestication
KW - Hybridization
LA - en
PB - American Society of Plant Biologists (ASPB)
ER -