Evidence that <i>AGL17</i> is a significant downstream target of CLF in floral transition control

Chen, Chen; Kohalmi, Susanne E.; Cui, Yuhai

doi:10.1080/15592324.2020.1766851

Cited by 9 publications

(5 citation statements)

References 18 publications

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“…AGL61 , a homolog of IbMADS83 , functions as a TF that controls the expression of downstream genes during central cell development and is involved in the seed endosperm development ( Steffen et al, 2008 ). And AGL17 , the homolog of IbMADS31 , is a significant downstream target of CURLY LEAF in floral transition control ( Shu et al, 2020 ). We found that cis -acting elements like the MeJA-responsive elements, auxin-responsive elements, abscisic acid-responsive elements, and gibberellin-responsive elements in the promoter region of IbMADS31 and IbMADS83 provided indirect evidences for the involvement of IbMADS31 and IbMADS83 in the flower and fruit development of sweet potato.…”

Section: Discussionmentioning

confidence: 99%

Genome-Wide Identification and Expression Analysis of the MADS-Box Gene Family in Sweet Potato [Ipomoea batatas (L.) Lam]

Shao

Zeng

et al. 2021

Front. Genet.

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MADS-box gene, one of the largest transcription factor families in plants, is a class of transcription factors widely present in eukaryotes. It plays an important role in plant growth and development and participates in the growth and development of flowers and fruits. Sweet potato is the seventh most important food crop in the world. Its tuberous roots, stems, and leaves contain a large number of proteins, lipids, carotenoids, anthocyanins, conjugated phenolic acids, and minerals, which have high edible, forage, and medicinal value, and is also an important energy crop. At present, MADS-box genes in sweet potato have rarely been reported, and there has been no study on the genome-wide identification and classification of MADS-box genes in Ipomoea batatas. This study provided the first comprehensive analysis of sweet potato MADS-box genes. We identified 95 MADS-box genes, analyzed the structure and protein of sweet potato MADS-box genes, and categorized them based on phylogenetic analysis with Arabidopsis MADS-box proteins. Chromosomal localization indicated an unequal number of MADS-box genes in all 14 chromosomes except LG3, with more than 10 MADS-box genes located on chromosomes LG7, LG11, and LG15. The MADS domain and core motifs of the sweet potato MADS-box genes were identified by motif analysis. We identified 19 MADS-box genes with collinear relationships and analyzed duplication events. Cis-acting elements, such as light-responsive, auxin-responsive, drought-inducible, and MeJA-responsive elements, were found in the promoter region of the MADS-box genes in sweet potato, which further indicates the basis of MADS-box gene regulation in response to environmental changes and hormones. RNA-seq suggested that sweet potato MADS-box genes exhibit tissue-specific expression patterns, with 34 genes highly expressed in sweet potato flowers and fruits, and 19 genes highly expressed in the tuberous root, pencil root, or fibrous root. qRT-PCR again validated the expression levels of the 10 genes and found that IbMADS1, IbMADS18, IbMADS19, IbMADS79, and IbMADS90 were highly expressed in the tuberous root or fibrous root, and IbMADS18, IbMADS31, and IbMADS83 were highly expressed in the fruit. In this study, the molecular basis of MADS-box genes of sweet potato was analyzed from various angles. The effects of MADS-box genes on the growth and development of sweet potato were investigated, which may provide a certain theoretical basis for molecular breeding of sweet potato.

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Section: Discussionmentioning

confidence: 99%

Genome-Wide Identification and Expression Analysis of the MADS-Box Gene Family in Sweet Potato [Ipomoea batatas (L.) Lam]

Shao

Zeng

et al. 2021

Front. Genet.

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“…Based on the gene function of their homologies in Arabidopsis , we speculated that AGL12 and AGL17 genes may be related to the degradation of root and photoperiod regulation of flower transition in Balanophora and S. himalayana ( Han et al, 2008 ; Tapia-López et al, 2008 ; Puig et al, 2013 ; Shu et al, 2020 ), they also convergently lost AGL15 and AGL6 genes, among which AGL15 genes play roles in regulating flowering through photoperiod and somatic embryo development ( Perry et al, 1999 ) and AGL6 genes are involved in floral meristem regulation, development of floral organs, and ovule and seed, and AGL6 genes also have possible roles in the development of male and female germline and gametophyte ( Dreni and Zhang, 2016 ). Two Balanophora also lost AGL63 and TRANSPARENT TESTA16 ( TT16 ) genes in GGM13 subfamily, which are involved in fruit development, seed formation, and embryo development ( Erdmann et al, 2010 ).…”

Section: Resultsmentioning

confidence: 99%

Genome-Wide Analysis of the MADS-Box Gene Family in Holoparasitic Plants (Balanophora subcupularis and Balanophora fungosa var. globosa)

Duan

Fang

et al. 2022

Front. Plant Sci.

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MADS-box is an important transcription factor family that is involved in the regulation of various stages of plant growth and development, especially flowering regulation and flower development. Being a holoparasitic plant, the body structure of Balanophoraceae has changed dramatically over time, and its vegetative and reproductive organs have been extensively modified, with rudimentary flower organs. Meanwhile, extraordinary gene losses have been identified in holoparasitic plants compared with autotrophs. Our study reveals that the MADS-box gene family contracted sharply in Balanophora subcupularis and Balanophora fungosa var. globosa, and some subfamilies were lost, exhibiting reduced redundancy in both. The genes that functioned in the transition from the vegetative to floral production stages suffered a significant loss, but the ABCE model genes remained intact. We further investigated genes related to flowering regulation in B. subcupularis and B. fungosa var. globosa, vernalization and autonomous ways of regulating flowering time remained comparatively integrated, while genes in photoperiod and circadian clock pathways were almost lost. Convergent gene loss in flowering regulation occurred in Balanophora and another holoparasitic plant Sapria himalayana (Rafflesiaceae). The genome-wide analysis of the MADS-box gene family in Balanophora species provides valuable information for understanding the classification, gene loss pattern, and flowering regulation mechanism of MADS-box gene family in parasitic plants.

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“…MIKC C -type genes are also involved in the regulation of floral transition. Previous studies found that SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 ( SOC1 ) regulates flowering time and flower initiation ( Barrero-Gil et al., 2021 ); FLOWERING LOCUS C (FLC) targets SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 15 ( SPL15 ) and SHORT VEGETATIVE PHASE 1 ( SVP1 ) to produce different flowering phenotypes and regulate floral transition mechanisms ( Madrid et al., 2020 ); AGL17 is a key regulator of floral transition ( Shu et al., 2020 ). MIKC C -type transcription factors play crucial roles in regulating gene expression under various abiotic stress conditions ( Saha et al., 2015 ; Guo et al., 2016 ; Wang et al., 2018 ; Chen et al., 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Genome-wide identification and expression analysis of MIKCC genes in rose provide insight into their effects on flower development

Wang

Yang²,

Li³

et al. 2022

Front. Plant Sci.

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The MIKCC-type gene family plays important roles in plant growth, development, and tolerance of biotic and abiotic stress, especially during floral organ differentiation. However, there have been no studies of MIKCC-type genes in rose, and functional differentiation of family members has not been explored. In this study, we identified 42 MIKCC-type genes in rose, classified the genes into 12 subfamilies, and constructed a phylogenetic tree. We performed expression analysis of these genes, and found that expression patterns correlated with the predicted subfamily, indicating that the features of MIKCC-type genes were broadly conserved during evolution. Collinear analysis of MIKCC genes among Rosaceae species confirmed the occurrence of whole genome duplications (WGD) and revealed some species-specific MIKCC genes. Transcriptome analysis showed that the expression of some MIKCC-type genes responded to low temperatures (4°C, 24 h) during flower organ differentiation. These conserved, duplicated, and novel expression patterns of MIKCC-type genes may have facilitated the adaptation of rose to various internal and external environmental changes. The results of this study provide a theoretical basis for future functional analysis of the MIKCC genes in rose and investigation of the evolutionary pattern of the MIKCC gene family in the Rosaceae genome.

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Evidence that AGL17 is a significant downstream target of CLF in floral transition control

Cited by 9 publications

References 18 publications

Genome-Wide Identification and Expression Analysis of the MADS-Box Gene Family in Sweet Potato [Ipomoea batatas (L.) Lam]

Genome-Wide Identification and Expression Analysis of the MADS-Box Gene Family in Sweet Potato [Ipomoea batatas (L.) Lam]

Genome-Wide Analysis of the MADS-Box Gene Family in Holoparasitic Plants (Balanophora subcupularis and Balanophora fungosa var. globosa)

Genome-wide identification and expression analysis of MIKCC genes in rose provide insight into their effects on flower development

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