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. 2019 Oct 31;1(1):100006. doi: 10.1016/j.xplc.2019.100006

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© 2019 The Authors

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

PMC Copyright notice

Anthocyanin Synthesis in Aft Tomato Is Associated with Four R2R3 MYB Genes Introgressed into Chromosome 10.

(A)Aft tomato fruit at mature green (left) and red ripening (right) stages.

(B) Location of the four R2R3 MYB encoding genes in the distal part of the long arm of chromosome 10 introgressed into Aft from Solanum chilense.

(C) Model describing the regulatory mechanism controlling anthocyanin synthesis in dicots. Wavy orange arrow represents inductive environmental or developmental stimuli that trigger anthocyanin production. Black arrows indicate activation. Red lines indicate repression. Adapted from Albert et al. (2014) and Liu et al. (2018).

(D) Phylogenetic tree showing the relatedness of the tomato R2R3 MYB proteins under study with other plant R2R3 MYB factors involved in anthocyanin synthesis. Protein sequences were identified on the SOL Genomics Network and NCBI websites. The relative accession numbers were as follows: SlAN2 (Solyc10g086250.1.1), SlAN2_Aft (ACT36608.1), SlANT1 (Solyc10g086260.1.1), SlANT1_Aft (ABO26065.1), SlANT1like (Solyc10g086270.1.1), SlANT1like_Aft (MN242013), SlAN2like (Solyc10g086290.1.1), SlAN2like_Aft (MN242011), ScAN2like (MN242012), StAN1 (AAX53089.1), StAN2 (AAX53091.1), PhAN2 (ABO21074.1), PhDPL (HQ116169), PhPHZ (HQ116170), PhPH4 (BAP28594.1), PhODO1 (Q50EX6.1), NtAN2 (ACO52470.1), AmROS1 (ABB83826.1), AmROS2 (ABB83827.1), AtMYB75 (AAG42001.1), AtMYB113 (NM_105308), AtMYB114 (NM_105309), ZmC1 (AAA33482), ZmPl (AAA19819), MdMYB10 (ABB84753), ScANT1 (ABO26065.1), ScAN2 (ACT36604.1), CsRuby (NP_001275818.1), CaMYBA (BBJ25251.1), MdMYB1 (ADQ27443.1), VvMYB5b (NP_001267854.1).