The <i>Arabidopsis</i> FILAMENTOUS <i>FLOWER</i> gene is required for flower formation

Chen, Qiuyun; Atkinson, Aaron; Otsuga, Denichiro; Christensen, Tim W.; Reynolds, Linnea; Drews, Gary N.

doi:10.1242/dev.126.12.2715

Cited by 124 publications

(18 citation statements)

References 27 publications

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“…These YABBY genes were initially and extensively studied in Arabidopsis, and they were shown to play important roles in the specification of abaxial cell fates in lateral organs produced by apical and flower meristems in both distinct and redundant manners [8]. FIL is required for the normal formation and development of inflorescence and floral meristems; its mutation (fil) generates clusters of both filamentous structures and flowers with floral organs of altered number and shape [7,9,[13][14][15]. The fil yab3 double mutant showed obvious changes in vegetative phenotypes (such as cotyledons and leaves with linear forms, abnormal vasculature and leaf surface with abaxial character, and ectopic shoot apical meristem structures) and displayed severely radialized floral organs [6].…”

Section: Introductionmentioning

confidence: 99%

Evolutionary Analysis of the YABBY Gene Family in Brassicaceae

Álam

Yang

et al. 2021

Plants

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The YABBY gene family is one of the plant transcription factors present in all seed plants. The family members were extensively studied in various plants and shown to play important roles in plant growth and development, such as the polarity establishment in lateral organs, the formation and development of leaves and flowers, and the response to internal plant hormone and external environmental stress signals. In this study, a total of 364 YABBY genes were identified from 37 Brassicaceae genomes, of which 15 were incomplete due to sequence gaps, and nine were imperfect (missing C2C2 zinc-finger or YABBY domain) due to sequence mutations. Phylogenetic analyses resolved these YABBY genes into six compact clades except for a YAB3-like gene identified in Aethionema arabicum. Seventeen Brassicaceae species each contained a complete set of six basic YABBY genes (i.e., 1 FIL, 1 YAB2, 1 YAB3, 1 YAB5, 1 INO and 1 CRC), while 20 others each contained a variable number of YABBY genes (5–25) caused mainly by whole-genome duplication/triplication followed by gene losses, and occasionally by tandem duplications. The fate of duplicate YABBY genes changed considerably according to plant species, as well as to YABBY gene type. These YABBY genes were shown to be syntenically conserved across most of the Brassicaceae species, but their functions might be considerably diverged between species, as well as between paralogous copies, as demonstrated by the promoter and expression analysis of YABBY genes in two Brassica species (B. rapa and B. oleracea). Our study provides valuable insights for understanding the evolutionary story of YABBY genes in Brassicaceae and for further functional characterization of each YABBY gene across the Brassicaceae species.

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Section: Introductionmentioning

confidence: 99%

Evolutionary Analysis of the YABBY Gene Family in Brassicaceae

Álam

Yang

et al. 2021

Plants

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“…Grapevine VviFAS was found to share a collinearity relationship with tomato FAS genes, suggesting that they probably possess similar functions. (Chen et al, 1999;Monforte et al, 2014). The expression pattern of AtCRC was mostly restricted to carpels and nectaries, while CRC plays a critical role in carpel morphogenesis, floral determinacy, and nectary specification in Arabidopsis (Bowman and Smyth, 1999).…”

Section: Discussion Evolution and Structure Of The Vviyabs Family In ...mentioning

confidence: 99%

“…Among them, FIL, YAB2, YAB3, and YAB5 function redundantly to control the development of lateral organs (Siegfried et al, 1999;Yamada et al, 2011;Yang et al, 2018). In Arabidopsis, FIL is responsible for the flower formation and development (Chen et al, 1999;Sawa et al, 1999a, Sawa et al, 1999b. Similarly, the TOB1-related YAB genes in rice have conserved functions in flower development (Tanaka et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Identification and Expression Analysis of VviYABs Family Reveal Its Potential Functions in the Developmental Switch and Stresses Response During Grapevine Development

Jiu

Zhang

Han³

et al. 2022

Front. Genet.

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Plant-specific YABBY (YAB) transcription factors play multiple roles in plant growth and development process. However, no comprehensive study has been performed in grapevines, especially to determine their roles in berry development and abiotic stress response. A total of seven VviYABs allocated to six chromosomal positions in grapevines were identified and classified into five subfamilies based on phylogenetic and structural analysis. Promoter element analysis and tissue-specific transcriptional response of VviYABs suggested that VviYABs might play vital roles in plant growth and development. VviYAB1, 2, 3, and 5 showed significantly higher expression levels in vegetative/green organs than in mature/woody tissues, implying that VviYABs might be involved in the regulatory switch from immature to mature developmental phases. The expression of VviYAB1, 2, 3, and VviFAS were gradually downregulated during berry developmental and ripening, which can be considered as putative molecular biomarkers between vegetative/green and mature/woody samples, and were used to identify key developmental and metabolic processes in grapevines. Furthermore, VviYAB1 expression was not markedly increased by gibberellic acid (GA3) treatment alone, but displayed significant upregulation when GA3 in combination with N-(2-chloro-4-pyridyl)-N′-phenylurea (CPPU) were applied, suggesting an involvement of VviYAB1 in fruit expansion by mediating cytokinin signaling pathway. Additionally, microarray and RNA-seq data suggested that VviYABs showed transcriptional regulation in response to various abiotic and biotic stresses, including salt, drought, Bois Noir, Erysiphe necator, and GLRaV-3 infection. Overall, our results provide a better understanding of the classification and functions of VviYABs during berry development and in response to abiotic and biotic stresses in grapevines.

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“…There were 509 cis-elements in 92 categories in the promoter of BpYAB3, of which the most numerous ones were DOFCOREZM (39), ROOTMOTIFTAPOX1 (33), CACTFTPPCA1 (30), CAATBOX1 (28), ARR1AT (20), GATABOX (18), MARTBOX (18), GT1CONSENSUS (17), etc. There were 469 cis-elements in 102 categories in the promoter of BpYAB4, of which the most numerous ones were GT1CONSENSUS (28), CACTFTPPCA1 (26), ARR1AT (25), CAATBOX1 (25), DOFCOREZM (24), ROOTMOTIFTAPOX1 (17), GTGANTG10 (16), GATABOX (15), etc. In the promoter of BpYAB5, there were 470 cis-elements in 94 categories, among which there were DOFCOREZM (48), POLLEN1LELAT52 (28), GT1CONSENSUS (23), ARR1AT (21), CAATBOX1 (19), CACTFTPPCA1 (19), ROOTMOTIFTAPOX1 (16), GATABOX (15), and so on.…”

Section: Analysis Of Cis-acting Elements In the Promoters Of Bpyab Genesmentioning

confidence: 99%

“…The CRC gene is essential for carpel polarity establishment and nectary specification in A. thaliana [14], while INO expresses in the outermost cell layer of the ovule and promotes outer integument growth [15]. The other four AtYAB genes have redundant functions in repressing the shoot apical meristem (SAM) and activating laminar development [16,17]; thus, YABBY is considered to be the candidate gene for the evolution of stem-to-leaf transformation [18]. Ectopic SAM and axillary meristems are formed in the fil yab3 mutant, and the stem cell activity-associated gene CLAVATA3 (CLV3) and WUSCHEL (WUS) are expanded in the fil yab3 double mutant [19].…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Analysis of BpYABs and Function Identification Involving in the Leaf and Silique Development in Transgenic Arabidopsis

Tang

Zhang

Chen

et al. 2022

IJMS

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YABs play an important role in the leaf development of the paper mulberry (Broussonetia papyrifera) and of the heterophylly. Thus, we investigated the function of BpYABs. (gene cloning, phylogenetic analysis, motif identification, subcellular localization, transactivation activity assay, qRT-PCR, in situ hybridization, and ectopic expression were used in our study. Six BpYABs were isolated, and four of them had transcriptional activity. BpYAB1, BpYAB3, BpYAB4, and BpYAB5 were localized to the nucleus. BpYAB1 was only expressed in the flower, while BpYAB6 was not expressed in any detected tissues; the four remaining BpYABs were expressed in the bud, leaf and flower, and their expression level decreased with leaf development. Further in situ hybridization showed that BpYAB3 and BpYAB5 were expressed in the vascular tissues and lamina, but neither showed the adaxial–abaxial polarity distribution pattern in the mature leaf lamina. Ectopic expression of BpYAB2, BpYAB3, BpYAB4 and BpYAB5 induced increased expression of AtWOX1 and caused the leaf of Arabidopsis to become smaller and curl downwards. Ectopic expression also led to shorter siliques and smaller seeds, but not for BpYAB5. These results suggest that BpYABs have functional divergency and redundancy in regulating leaf and silique development.

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The Arabidopsis FILAMENTOUS FLOWER gene is required for flower formation

Cited by 124 publications

References 27 publications

Evolutionary Analysis of the YABBY Gene Family in Brassicaceae

Evolutionary Analysis of the YABBY Gene Family in Brassicaceae

Genome-Wide Identification and Expression Analysis of VviYABs Family Reveal Its Potential Functions in the Developmental Switch and Stresses Response During Grapevine Development

Genome-Wide Analysis of BpYABs and Function Identification Involving in the Leaf and Silique Development in Transgenic Arabidopsis

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