Nulliplex-branch, a TERMINAL FLOWER 1 ortholog, controls plant growth habit in cotton

Chen, Wei; Yao, Jinbo; Li, Yan; Zhao, Lingxia; Liu, Jie; Guo, Yan; Wang, Junyi; Li, Yuan; Liu, Ziyang; Lu, Youjun; Zhang, Yongshan

doi:10.1007/s00122-018-3197-0

Cited by 24 publications

(23 citation statements)

References 67 publications

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“…hirsutum [63–65]. Our group has demonstrated that the FT homolog GhFT1 controls flowering time and TFL1 homolog SELFING-PRUNING ( GhSP ) regulates fruiting branches architecture in cotton [66–68], and similar findings have also been reported in other groups [69–71]. However, the exact biological functions of GhMFT homologs in Upland cotton remain unclear.…”

Section: Introductionsupporting

confidence: 53%

“…In the SAM of Arabidopsis and rice, FT interacts with florigen receptor 14-3-3 proteins and a bZIP transcription factor FD to induce transcription of floral meristem identity genes [3, 78,79]. Recent studies reveal that cotton FT homolog GhFT and TFL1/SP homolog GhSP interact with a cotton bZIP transcription factor GhFD [64, 68, 69, 71]. To analyze the subcellular mechanisms of cotton MFT homologs and their interaction with FD, we generated constructs containing GhMFT1 and GhMFT2 C-terminal fusions with GFP under control of the CaMV 35S promoter, which were transiently expressed in leaf epidermal cells of N .…”

Section: Resultsmentioning

confidence: 99%

“…Recent studies showed that cotton FT and TFL1/SP-like proteins compete for interaction with GhFD, involving in the regulation of plant architecture and flower morphology [64, 68, 69, 71]. As Prewitt et al [71] reported that cotton GhMFT1 can interact with G .…”

Section: Discussionmentioning

confidence: 99%

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Identification of cotton MOTHER OF FT AND TFL1 homologs, GhMFT1 and GhMFT2, involved in seed germination

Liu

Sang

et al. 2019

PLoS ONE

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Plant phosphatidylethanolamine-binding protein (PEBP) is comprised of three clades: FLOWERING LOCUS T (FT), TERMINAL FLOWER1 (TFL1) and MOTHER OF FT AND TFL1 (MFT). FT/TFL1-like clades regulate identities of the determinate and indeterminate meristems, and ultimately affect flowering time and plant architecture. MFT is generally considered to be the ancestor of FT/TFL1, but its function is not well understood. Here, two MFT homoeologous gene pairs in Gossypium hirsutum , GhMFT1-A/D and GhMFT2-A/D , were identified by genome-wide identification of MFT -like genes. Detailed expression analysis revealed that GhMFT1 and GhMFT2 homoeologous genes were predominately expressed in ovules, and their expression increased remarkably during ovule development but decreased quickly during seed germination. Expressions of GhMFT1 and GhMFT2 homoeologous genes in germinating seeds were upregulated in response to abscisic acid (ABA), and their expressions also responded to gibberellin (GA). In addition, ectopic overexpression of GhMFT1 and GhMFT2 in Arabidopsis inhibited seed germination at the early stage. Gene transcription analysis showed that ABA metabolism genes ABA-INSENSITIVE3 ( ABI3 ) and ABI5 , GA signal transduction pathway genes REPRESSOR OF ga1-3 ( RGA ) and RGA-LIKE2 ( RGL2 ) were all upregulated in the 35S : GhMFT1 and 35S : GhMFT2 transgenic Arabidopsis seeds. GhMFT1 and GhMFT2 localize in the cytoplasm and nucleus, and both interact with a cotton bZIP transcription factor GhFD, suggesting that both of GhMFT1, 2 have similar intracellular regulation mechanisms. Taken together, the results suggest that GhMFT1 and GhMFT2 may act redundantly and differentially in the regulation of seed germination.

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Section: Introductionsupporting

confidence: 53%

Section: Resultsmentioning

confidence: 99%

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Identification of cotton MOTHER OF FT AND TFL1 homologs, GhMFT1 and GhMFT2, involved in seed germination

Liu

Sang

et al. 2019

PLoS ONE

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“…With the development of modern technologies, plant breeders have the opportunity to overcome this bottleneck. Studies have demonstrated that targeted mutagenesis and precise base editing can be accurately applied for the G. hirsutum genome using genome editing systems [68][69][70][71][72][73][74][75][76][77]. Genome resequencing has identified many domestication genes associated with fiber quality and yield traits.…”

Section: Box 2 a Model For Genetic Breakdown Of Interspecific Hybridmentioning

confidence: 99%

Gossypium Genomics: Trends, Scope, and Utilization for Cotton Improvement

Yang

Qanmber

Wang

et al. 2020

Trends in Plant Science

113

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Cotton (Gossypium spp.) is the most important natural fiber crop worldwide. The diversity of Gossypium species also provides an ideal model for investigating evolution and domestication of polyploids. However, the huge and complex cotton genome hinders genomic research. Technical advances in high-throughput sequencing and bioinformatics analysis have now largely overcome these obstacles, bringing about a new era of cotton genomics. Here, we review recent progress in Gossypium genomics based on whole genome sequencing, resequencing, and comparative genomics, which have provided insights about the genomic basis of fiber biogenesis and the landscape of cotton functional genomics. We address current challenges and present multidisciplinary genomics-enabled breeding strategies covering the breadth of high fiber yield, quality, and environmental resilience for future cotton breeding programs. Gossypium Genomics at a Glance As the world's most important fiber crop and a major source of seed oil and protein, cotton is cultivated in more than 75 countries around the globe [1]. Cotton fibers are seed trichomes, up to 65 mm long, composed of almost pure cellulose, and provide a unique single-celled model system for studying cell elongation and cell wall biogenesis [2]. The Gossypium genus is extraordinarily diverse, with eight diploid genome groups (A-G, and K) and one allopolyploid group (AD) [3,4]. Hybridization and polyploidization of two parental diploids, an A genome-like species with a D genome-like species, has resulted in at least seven allotetraploid species. Two allotetraploid species, Gossypium hirsutum and Gossypium barbadense, evolved independently; these two account for over 90% of annual commercial fiber production. Gossypium is ideal for investigating the origin, evolution, and domestication of polyploids [5-7]. Highlights Cotton is an important natural fiber crop cultivated worldwide that also provides an ideal model for investigating evolution and domestication of polyploids Combinations of the latest technologies, such as optical mapping, high-throughput chromosome conformation capture (Hi-C), and Pacific Biosciences (PacBio) long-reads, have been used to generate multiple high-quality reference genomes of diploid and allotetraploid cotton. Comparative population genomics illuminated the genetic history of cotton domestication and identified the genomic variation determining fiber yield, quality, and stress resistance.

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“…Although they both encode small 20-kDa soluble proteins that belong to phosphatidylethanolamine binding protein (PEBP) family, they functionally oppose one another; TFL1 is a floral inhibitor, whereas FT promotes flowering. [6][7][8][9] The PEBP gene family is present in all taxa from bacteria to eukaryotes, and have a major role in the flowering time of a variety of plants. In Arabidopsis, the PEBP family comprises four other members, namely TSF (Twin Sister of FT), BFT (Brother of FT and TFL1), ATC (Arabidopsis thaliana Centroradialis Homolog) and MFT (Mother of FT and TFL1).…”

Section: Introductionmentioning

confidence: 99%

Sequence and functional analysis of a TERMINAL FLOWER 1 homolog fromBrassica juncea: a putative biotechnological tool for flowering time adjustment

2019

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Flowering time is an important agricultural trait of the oil crop Brassica juncea (B. juncea), as accelerated flowering enables avoidance of terminal drought leading to increased yields. One gene known to control flowering time is TERMINAL FLOWER 1 (TFL1), which belongs to a family of phosphatidylethanolamine binding proteins, which can either repress or promote flowering time.Here, a TFL1 homolog, named BjTFL1, has been isolated from B. juncea, which shared 95% amino acid identity with TFL1 from Arabidopsis thaliana. Sequence analysis predicts the BjTFL1 protein contains the ligand-binding site, conserved motifs and other amino acid residues that are critical for TFL1 function. Confirming this as a functional TFL1 orthologue, overexpression of BjTFL1 under the control of the constitutive 35S promoter in Arabidopsis delayed flowering time. As a proof-ofconcept to investigate its utility to shorten flowering time, an RNAi construct containing a partial sequence of BjTFL1 was transformed into Arabidopsis. Transcript analysis demonstrated the downregulation of endogenous AtTFL1. Moreover, the RNAi BjTFL1 transgenic lines were early flowering and had fewer rosette and cauline leaves compared to wild-type. Therefore, this BjTFL1 RNAi transgene could be used as a biotechnological tool to reduce flowering time in Brassica juncea in a bid to improve agricultural performance.

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Nulliplex-branch, a TERMINAL FLOWER 1 ortholog, controls plant growth habit in cotton

Cited by 24 publications

References 67 publications

Identification of cotton MOTHER OF FT AND TFL1 homologs, GhMFT1 and GhMFT2, involved in seed germination

Identification of cotton MOTHER OF FT AND TFL1 homologs, GhMFT1 and GhMFT2, involved in seed germination

Gossypium Genomics: Trends, Scope, and Utilization for Cotton Improvement

Sequence and functional analysis of a TERMINAL FLOWER 1 homolog fromBrassica juncea: a putative biotechnological tool for flowering time adjustment

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