Genome-Wide Identification and Expression Analysis of GST Genes during Light-Induced Anthocyanin Biosynthesis in Mango (Mangifera indica L.)

被引:0
|
作者
Yuan, Shiqing [1 ,2 ]
Yang, Chengkun [1 ,2 ]
Zheng, Bin [3 ]
Ni, Junbei [4 ]
Zhou, Kaibing [1 ,2 ]
Qian, Minjie [1 ,2 ]
Wu, Hongxia [3 ]
机构
[1] Hainan Univ, Sanya Inst Breeding & Multiplicat, Haikou 570228, Peoples R China
[2] Hainan Univ, Sch Trop Agr & Forestry, Key Lab Qual Regulat Trop Hort Crop Hainan Prov, Haikou 570228, Peoples R China
[3] Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Key Lab Trop Fruit Biol, Minist Agr & Rural Affairs, Zhanjiang 524013, Peoples R China
[4] Zhejiang Univ, Hainan Inst, Sanya 572000, Peoples R China
来源
PLANTS-BASEL | 2024年 / 13卷 / 19期
基金
中国国家自然科学基金;
关键词
mango; GST; light; anthocyanin; gene expression; GLUTATHIONE-S-TRANSFERASE; TRANSCRIPTION FACTORS; APPLE SKIN; UV-B; PEEL; PIGMENTATION; ACCUMULATION; FLAVONOIDS;
D O I
10.3390/plants13192726
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Anthocyanins are important secondary metabolites contributing to the red coloration of fruits, the biosynthesis of which is significantly affected by light. Glutathione S-transferases (GSTs) play critical roles in the transport of anthocyanins from the cytosol to the vacuole. Despite their importance, GST genes in mango have not been extensively characterized. In this study, 62 mango GST genes were identified and further divided into six subfamilies. MiGSTs displayed high similarity in their exon/intron structure and motif and domain composition within the same subfamilies. The mango genome harbored eleven pairs of segmental gene duplications and ten sets of tandemly duplicated genes. Orthologous analysis identified twenty-nine, seven, thirty-four, and nineteen pairs of orthologous genes among mango MiGST genes and their counterparts in Arabidopsis, rice, citrus, and bayberry, respectively. Tissue-specific expression profiling highlighted tissue-specific expression patterns for MiGST genes. RNA-seq and qPCR analyses revealed elevated expression levels of seven MiGSTs including MiDHAR1, MiGSTU7, MiGSTU13, MiGSTU21, MiGSTF3, MiGSTF8, and MiGSTF9 during light-induced anthocyanin accumulation in mango. This study establishes a comprehensive genetic framework of MiGSTs in mango fruit and their potential roles in regulating anthocyanin accumulation, which is helpful in developing GST-derived molecular markers and speeding up the process of breeding new red-colored mango cultivars.
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页数:15
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