Global dissection of R2R3-MYB in Pogostemon cablin uncovers a species-specific R2R3-MYB clade

Zeng, Ying; Li, Zhipeng; Chen, Yiqiong; Li, Wanying; Wang, Hongbin; Shen, Yanting

doi:10.1016/j.ygeno.2023.110643

Cited by 2 publications

(2 citation statements)

References 45 publications

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“…In this study, R2R3-SsMYB genes were categorized into 35 subgroups. Although the number of observed subgroups was higher than that of Pogostemon cablin (31 subgroups; Zeng et al, 2023), it was lower than those of Fragaria × ananassa (37 subgroups; Liu et al, 2021) and Musa acuminata (42 subgroups; Pucker et al, 2020). The evolutionary origins and conserved functions of R2R3-SsMYB members are thought to be shared within the specific clades.…”

Section: Discussionmentioning

confidence: 91%

Genome-wide analysis of the R2R3-MYB gene family in Spatholobus suberectus and identification of its function in flavonoid biosynthesis

Qin,

Wei,

Liang

et al. 2023

Front. Plant Sci.

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Spatholobus suberectus Dunn (S. suberectus), a plant species within the Leguminosae family, has a long history of use in traditional medicines. The dried stem of S. suberectus exhibits various pharmacological activities because it contains various flavonoids. Diverse functions in plants are associated with the R2R3-MYB gene family, including the biosynthesis of flavonoids. Nonetheless, its role remains unelucidated in S. suberectus. Therefore, the newly sequenced S. suberectus genome was utilized to conduct a systematic genome-wide analysis of the R2R3-MYB gene family. The resulting data identified 181 R2R3-SsMYB genes in total, which were then categorized by phylogenetic analysis into 35 subgroups. Among the R2R3-SsMYB genes, 174 were mapped to 9 different chromosomes, and 7 genes were not located on any chromosome. Moreover, similarity in terms of exon-intron structures and motifs was exhibited by most genes in the same subgroup. The expansion of the gene family was primarily driven by segmental duplication events, as demonstrated by collinearity analysis. Notably, most of the duplicated genes underwent purifying selection, which was depicted through the Ka/Ks analysis. In this study, 22 R2R3-SsMYB genes were shown to strongly influence the level of flavonoids. The elevated expression level of these genes was depicted in the tissues with flavonoid accumulation in contrast with other tissues through qRT-PCR data. The resulting data elucidate the structural and functional elements of R2R3-SsMYB genes and present genes that could potentially be utilized for enhancing flavonoid biosynthesis in S. suberectus.

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Section: Discussionmentioning

confidence: 91%

Genome-wide analysis of the R2R3-MYB gene family in Spatholobus suberectus and identification of its function in flavonoid biosynthesis

Qin,

Wei,

Liang

et al. 2023

Front. Plant Sci.

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“…At the same time, they found that CsMYB17 enhanced anthocyanin accumulation in tea plants [ 43 ]. CsMYB42 played a crucial role in activating the expression of CsGS1c and might be involved in the biosynthesis of theanine in albino tea leaves [ 66 ]. Li et al predicted that CsMYB8 and CsMYB99 were involved in the biosynthesis of flavonoids (including catechins, anthocyanins and flavanols), while CsMYB9 and CsMYB49 were associated with theanine synthesis, as well as the MYB TFs that were likely involved in hormone-signaling-mediated environmental stress and defense responses [ 58 ].…”

Section: Discussionmentioning

confidence: 99%

Differential Response of MYB Transcription Factor Gene Transcripts to Circadian Rhythm in Tea Plants (Camellia sinensis)

Hu,

Zhang,

Qin

et al. 2024

IJMS

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The circadian clock refers to the formation of a certain rule in the long-term evolution of an organism, which is an invisible ‘clock’ in the body of an organism. As one of the largest TF families in higher plants, the MYB transcription factor is involved in plant growth and development. MYB is also inextricably correlated with the circadian rhythm. In this study, the transcriptome data of the tea plant ‘Baiyeyihao’ were measured at a photoperiod interval of 4 h (24 h). A total of 25,306 unigenes were obtained, including 14,615 unigenes that were annotated across 20 functional categories within the GO classification. Additionally, 10,443 single-gene clusters were annotated to 11 sublevels of metabolic pathways using KEGG. Based on the results of gene annotation and differential gene transcript analysis, 22 genes encoding MYB transcription factors were identified. The G10 group in the phylogenetic tree had 13 members, of which 5 were related to the circadian rhythm, accounting for 39%. The G1, G2, G8, G9, G15, G16, G18, G19, G20, G21 and G23 groups had no members associated with the circadian rhythm. Among the 22 differentially expressed MYB transcription factors, 3 members of LHY, RVE1 and RVE8 were core circadian rhythm genes belonging to the G10, G12 and G10 groups, respectively. Real-time fluorescence quantitative PCR was used to detect and validate the expression of the gene transcripts encoding MYB transcription factors associated with the circadian rhythm.

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Global dissection of R2R3-MYB in Pogostemon cablin uncovers a species-specific R2R3-MYB clade

Cited by 2 publications

References 45 publications

Genome-wide analysis of the R2R3-MYB gene family in Spatholobus suberectus and identification of its function in flavonoid biosynthesis

Genome-wide analysis of the R2R3-MYB gene family in Spatholobus suberectus and identification of its function in flavonoid biosynthesis

Differential Response of MYB Transcription Factor Gene Transcripts to Circadian Rhythm in Tea Plants (Camellia sinensis)

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