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Fig. 2 | BMC Plant Biology

Fig. 2

From: Integrated genomics-based mapping reveals the genetics underlying maize flavonoid biosynthesis

Fig. 2

A QTL containing three UGTs and re-sequencing and candidate association analysis of UGT1. a QTL mapping result for the level of C-pentosyl-apigenin O-caffeoylhexoside (n1270) in the mature maize kernel. LOD values are shown as a function of their genetic positions. And the candidate genes are shown as red arrows. b Phylogenetic tree of selected flavonoid glycosyltransferases. Candidate genes in the QTL region on chromosome 6 are in red. The Genbank accession numbers for the sequences are shown in the parentheses: At3RhaT (NM_102790, At1g30530); At3GlcT (NM_121711, At5g17050); At3AraT (NM_121709, At5g17030); Vv3GlcT (AF000371); AcF3GalT (GU079683); Ph3GalT (AF316552); Pf3GlcT (AB002818); Ph3GlcT (AB027454); Hv3GlcT (X15694); Zm3GlcT (X13501); At5GlcT (NM_117485, At4g14090); Ph5GlcT (AB027455); Pf5GlcT (AB013596); Vh5GlcT (AB013598); CsF3G2″GlcT (HE793682); MtUGT72L1 (EU434684); OsCGT (FM179712); At7RhaT (NM_100480, At1g06000); At7GlcT (NM_129234, At2g36790); DbB5GlcT (Y18871); Gt3′GlcT (AB076697); NtIS5s (AF346431); Sb7GlcT (AB031274); BpA3G2″GlcAT (AB190262); CaUGT3, F3G6″GlcT (AB443870); CmF7G2″RhaT (AY048882); Cs1,6RhaT, CsiF7G6″RhaT (DQ119035); PhA3G6″RhaT, UGT79G16 (Z25802); AtA3G2″XylT, UGT79B1 (NM_124785, At5g54060); AtF3G2″GlcT, UGT79B6 (NM_124780, At5g54010); F3GGT1, AcA3Ga2″XylT (FG404013); IpA3G2″GlcT (AB192315). c Boxplot showing the distribution of relative metabolite level (n1270) of lines from the association population with two parental alleles at SNP811 and SNP1331. d Sequence polymorphisms between B73 and By804 in UGT1 (GRMZM2G162755). The SNP identity is indicated by the position starting from the codon ATG. The B73 allele (amino acid) is before the slash, the latter is By804. “XXX” indicates the deletion of three bases. Abbreviations: A3G, anthocyanin 3-O-glucoside; A3Ga, anthocyanin 3-O-galactoide; F3G, flavonol 3-O-glucoside; F7G, flavonoid 7-O-glucoside; 3AraT, 3-O-arabinosyltransferase; 3GlcT, 3-O-glucosyltransferase; 3′GlcT, 3′-O-glucosyltransferase; 3GalT, 3-O-galactosyltransferase; 3RhaT,3-O-rhamnosyltransferase; 5GlcT, 5-O-glucosyltransferase; 7GlcT, 7-O-glucosyltransferase; 7RhaT, 7-O-rhamnosyltransferase; 2″GlcT, 2″-O-glucosyltransferase; 2″RhaT, 2″-O-rhamnosyltransferase; 2″XylT, 2″-O-xylosyltransferase; 6″RhaT, 6″-O-rhamnosyltransferase; CGT, C-glucosyltransferase; NtIS5a, salicylate-induced glucosyltransferase. Abbreviations for species: Ac, Actinidia chinensis; At, Arabidopsis thaliana; Bp, Bellis perennis; Cm, Citrus maxima; Csa, Crocus sativus; Csi, Citrus sinensis; Db, Dorotheanthus bellidiformis; Gt, Gentiana triflora; Hv, Hordeum vulgare; Ip, Ipomoea purpurea; Nt, Nicotiana tabacum; Os, Oryza sativa; Pf, Perilla frutescens; Ph, Petunia hybrida; Sb, Scutellaria baicalensis; Vh, Verbena hybrida; Vv, Vitis vinifera; Zm, Zea mays [80]

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