LhGST is an anthocyanin-related glutathione S-transferase gene in Asiatic hybrid lilies (Lilium spp.)
Key message LhGST , an anthocyanin-related GST gene, was identified from Asiatic hybrid lilies. Expression and functional analyses demonstrated that LhGST might be involved in anthocyanin sequestration in lily tepals. Anthocyanins are responsible for the pink, red and purple pigmentation of flowers...
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Published in | Plant cell reports Vol. 40; no. 1; pp. 85 - 95 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
2021
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Key message
LhGST
, an anthocyanin-related
GST
gene, was identified from Asiatic hybrid lilies. Expression and functional analyses demonstrated that
LhGST
might be involved in anthocyanin sequestration in lily tepals.
Anthocyanins are responsible for the pink, red and purple pigmentation of flowers in Asiatic hybrid lilies, synthesized at the cytoplasmic surface of the endoplasmic reticulum (ER) and then transported to the vacuole. To date, the mechanism involved in the intracellular transport of anthocyanins in lilies has not been well elucidated. Here, full-length
glutathione S-transferase
gene (
LhGST
) was identified from lilies. Expression analysis revealed that
LhGST
was positively correlated with anthocyanin accumulation. Phylogenetic tree analysis showed that LhGST clustered with other anthocyanin-related GSTs in the same phi clade. Moreover, functional complementation of an
Arabidopsis tt19
mutant demonstrated that
LhGST
might be involved in anthocyanin accumulation in lily tepals. Additionally, according to phenotype analysis,
LhGST
was found to be correlated with the transport of anthocyanin in lilies by virus-induced gene silencing (VIGS) assay. In addition,
cis-
element analysis of the
LhGST
promoter showed the presence of ABA-, auxin-, MeJA-, gibberellin-, light-, and stress-responsive elements and an MYB recognition site (MRS, CCGTTG). Yeast one-hybrid and dual-luciferase report assays revealed that the promoter of
LhGST
was activated by
LhMYB12-lat
, which is a key R2R3-MYB transcription factor that regulates anthocyanin biosynthesis in lilies. In conclusion, our results revealed that
LhGST
plays a key role in anthocyanin transport and accumulation in the tepals of lilies
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0721-7714 1432-203X |
DOI: | 10.1007/s00299-020-02615-y |