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Article

Identification of Anthocyanins-Related Glutathione S-Transferase (GST) Genes in the Genome of Cultivated Strawberry (Fragaria × ananassa)

by
Yuanxiu Lin
1,2,†,
Lianxi Zhang
1,†,
JiaHao Zhang
1,†,
Yunting Zhang
1,2,
Yan Wang
1,2,
Qing Chen
1,
Ya Luo
1,
Yong Zhang
1,
Mengyao Li
1,
Xiaorong Wang
1,2 and
Haoru Tang
1,2,*,‡
1
College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
2
Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
‡
Current address: College of Horticulture, Sichuan Agricultural University, No. 211, Huimin Rd, Wenjiang, Chengdu 611130, China.
Int. J. Mol. Sci. 2020, 21(22), 8708; https://doi.org/10.3390/ijms21228708
Submission received: 19 September 2020 / Revised: 28 October 2020 / Accepted: 12 November 2020 / Published: 18 November 2020
(This article belongs to the Section Molecular Genetics and Genomics)
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Abstract

Anthocyanins are responsible for the red color of strawberry, they are a subclass of flavonoids synthesized in cytosol and transferred to vacuole to form the visible color. Previous studies in model and ornamental plants indicated members of the glutathione S-transferase (GST) gene family were involved in vacuolar accumulation of anthocyanins. In the present study, a total of 130 FaGST genes were identified in the genome of cultivated strawberry (Fragaria × ananassa), which were unevenly distributed across the 28 chromosomes from the four subgenomes. Evolutionary analysis revealed the expansion of FaGST family was under stable selection and mainly drove by WGD/segmental duplication event. Classification and phylogenetic analysis indicated that all the FaGST genes were clarified into seven subclasses, among which FaGST1, FaGST37, and FaGST97 belonging to Phi class were closely related to FvRAP, an anthocyanin-related GST of wildwood strawberry, and this clade was clustered with other known anthocyanin-related GSTs. RNAseq-based expression analysis at different developmental stages of strawberry revealed that the expression of FaGST1, FaGST37, FaGST39, FaGST73, and FaGST97 was gradually increased during the fruit ripening, consistent with the anthocyanins accumulation. These expression patterns of those five FaGST genes were also significantly correlated with those of other anthocyanin biosynthetic genes such as FaCHI, FaCHS, and FaANS, as well as anthocyanin regulatory gene FaMYB10. These results indicated FaGST1, FaGST37, FaGST39, FaGST73, and FaGST97 may function in vacuolar anthocyanin accumulation in cultivated strawberry.
Keywords: anthocyanins; cultivated strawberry; glutathione S-transferase; expression profiles anthocyanins; cultivated strawberry; glutathione S-transferase; expression profiles

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MDPI and ACS Style

Lin, Y.; Zhang, L.; Zhang, J.; Zhang, Y.; Wang, Y.; Chen, Q.; Luo, Y.; Zhang, Y.; Li, M.; Wang, X.; et al. Identification of Anthocyanins-Related Glutathione S-Transferase (GST) Genes in the Genome of Cultivated Strawberry (Fragaria × ananassa). Int. J. Mol. Sci. 2020, 21, 8708. https://doi.org/10.3390/ijms21228708

AMA Style

Lin Y, Zhang L, Zhang J, Zhang Y, Wang Y, Chen Q, Luo Y, Zhang Y, Li M, Wang X, et al. Identification of Anthocyanins-Related Glutathione S-Transferase (GST) Genes in the Genome of Cultivated Strawberry (Fragaria × ananassa). International Journal of Molecular Sciences. 2020; 21(22):8708. https://doi.org/10.3390/ijms21228708

Chicago/Turabian Style

Lin, Yuanxiu, Lianxi Zhang, JiaHao Zhang, Yunting Zhang, Yan Wang, Qing Chen, Ya Luo, Yong Zhang, Mengyao Li, Xiaorong Wang, and et al. 2020. "Identification of Anthocyanins-Related Glutathione S-Transferase (GST) Genes in the Genome of Cultivated Strawberry (Fragaria × ananassa)" International Journal of Molecular Sciences 21, no. 22: 8708. https://doi.org/10.3390/ijms21228708

APA Style

Lin, Y., Zhang, L., Zhang, J., Zhang, Y., Wang, Y., Chen, Q., Luo, Y., Zhang, Y., Li, M., Wang, X., & Tang, H. (2020). Identification of Anthocyanins-Related Glutathione S-Transferase (GST) Genes in the Genome of Cultivated Strawberry (Fragaria × ananassa). International Journal of Molecular Sciences, 21(22), 8708. https://doi.org/10.3390/ijms21228708

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