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SINGLE FLOWER TRUSS and SELF-PRUNING differentially regulate developmental and metabolic genetic networks to guide cotton (Gossypium hirsutum) architectures.

ABSTRACT: SINGLE FLOWER TRUSS and SELF-PRUNING differentially regulate developmental and metabolic genetic networks to guide cotton (Gossypium hirsutum) architectures.

PROVIDER: PRJNA604001 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10990709.fastq.gz	Fastqsanger.gz
	SRR10990710.fastq.gz	Fastqsanger.gz
	SRR10990711.fastq.gz	Fastqsanger.gz
	SRR10990712.fastq.gz	Fastqsanger.gz
	SRR10990713.fastq.gz	Fastqsanger.gz

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SINGLE FLOWER TRUSS and SELF-PRUNING differentially regulate developmental and metabolic genetic networks to guide cotton (Gossypium hirsutum) architectures [GEO_SFT_SP]

Project description:Patterns of indeterminate and determinate growth specify plant architecture and influence crop productivity. In cotton (Gossypium hirsutum), SINGLE FLOWER TRUSS (SFT) stimulates the transition to flowering and determinate growth while its closely related antagonist SELF-PRUNING (SP) maintains meristems in indeterminate states to favor vegetative growth. To identify the molecular programs regulating cotton growth habits, and understand how altered expression of GhSFT and GhSP perturbs these programs, we used RNA-Seq to determine the gene expression networks involved in wild photoperiodic, domesticated day-neutral, and GhSFT- and GhSP-regulated architectures. GhSFT or GhSP affected the expression of genes regulating meristem fate and metabolic pathways. Gene ontology analysis predicted enrichment of transcripts involved in photosynthesis, secondary metabolism, and cell wall biosynthesis, and these hypotheses were functionally verified. Weighted gene co-expression network analyses using multiple cotton datasets identified diverse genetic modules highly correlated with SFT or SP, including those that may benefit crop management.

2020-06-30 | GSE144545 | GEO

SINGLE FLOWER TRUSS and SELF-PRUNING differentially regulate developmental and metabolic genetic networks to guide cotton (Gossypium hirsutum) architectures [meristems]

Project description:SINGLE FLOWER TRUSS and SELF-PRUNING differentially regulate developmental and metabolic genetic networks to guide cotton (Gossypium hirsutum) architectures [meristems]

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SINGLE FLOWER TRUSS and SELF-PRUNING differentially regulate developmental and metabolic genetic networks to guide cotton (Gossypium hirsutum) architectures [GEO_SFT_SP]

Project description:SINGLE FLOWER TRUSS and SELF-PRUNING differentially regulate developmental and metabolic genetic networks to guide cotton (Gossypium hirsutum) architectures [GEO_SFT_SP]

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SINGLE FLOWER TRUSS and SELF-PRUNING differentially regulate developmental and metabolic genetic networks to guide cotton (Gossypium hirsutum) architectures [meristems]

Project description:Each plant's architecture, composed of patterns of indeterminate and determinate growth, is defined through the activities of meristems. Understanding the regulation of meristem identity can benefit plant architecture and crop yield. To understand how meristem activities contribute to different architectures in cotton (Gossypium hirsutum), we used RNA-Seq to determine the transcriptomes from meristems isolated from different developmental stages of wild photoperiodic and domesticated day-neutral cotton grown under different photoperiods.

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SINGLE FLOWER TRUSS and SELF-PRUNING differentially regulate developmental and metabolic genetic networks to guide cotton (Gossypium hirsutum) architectures.

Project description:This SuperSeries is composed of the SubSeries listed below.

2020-06-30 | GSE144546 | GEO

Cotton CENTRORADIALIS/TERMINAL FLOWER 1/SELF-PRUNING genes functionally diverged to differentially impact plant architecture.

Project description:Genes of the CENTRORADIALIS/TERMINAL FLOWER 1/SELF-PRUNING (CETS) family influence meristem identity by controlling the balance between indeterminate and determinate growth, thereby profoundly impacting plant architecture. Artificial selection during cotton (Gossypium hirsutum) domestication converted photoperiodic trees to the day-neutral shrubs widely cultivated today. To understand the regulation of cotton architecture and exploit these principles to enhance crop productivity, we characterized the CETS gene family from tetraploid cotton. We demonstrate that genes of the TERMINAL FLOWER 1 (TFL1)-like clade show different roles in regulating growth patterns. Cotton has five TFL1-like genes: SELF-PRUNING (GhSP) is a single gene whereas there are two TFL1-like and BROTHER OF FT (BFT)-like genes, and these duplications are specific to the cotton lineage. All genes of the cotton TFL1-like clade delay flowering when ectopically expressed in transgenic Arabidopsis, with the strongest phenotypes failing to produce functional flowers. GhSP, GhTFL1-L2, and GhBFT-L2 rescue the early flowering Attfl1-14 mutant phenotype, and the encoded polypeptides interact with a cotton FD protein. Heterologous promoter::GUS fusions illustrate differences in the regulation of these genes, suggesting that genes of the GhTFL1-like clade may not act redundantly. Characterizations of the GhCETS family provide strategies for nuanced control of plant growth.

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Altered expression of SELF-PRUNING disrupts meristem homeostasis and facilitates delivery of signals to the meristem

Project description:Meristem maintenance, achieved through the highly conserved CLAVATA-WUSCHEL (CLV-WUS) regulatory circuit, is fundamental in balancing stem cell proliferation with cellular differentiation. Disruptions to meristem homeostasis can alter meristem size, leading to enlarged organs. Cotton, the world’s most important fiber crop, shows inherent variation in fruit size. Leveraging meristem regulation could benefit cotton agriculture and increase yields of high-quality fibers. Using virus-based gene manipulation in cotton, we altered expression of genes functioning in the CLV-WUS circuit to perturb meristem regulation and increase fruit size. Targeted alteration of individual components of the CLV-WUS circuit only modestly fasciated flowers and fruits. Unexpectedly, controlled expression of meristem regulator SELF-PRUNING (SP) dramatically increased the impacts of altered CLV-WUS expression on flower and fruit fasciation. Meristem transcriptomics show SP and genes of the CLV-WUS circuit are expressed independently from each other, suggesting these gene products are not acting in the same path. Virus-induced silencing of GhSP facilitated delivery of other signals to the meristem to dramatically alter organ specification. SELF-PRUNING has a role in cotton meristem homeostasis, and changes in GhSP expression increased access of virus-based signals to the meristem.

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Project description:Genetic male sterility (GMS) in cotton (Gossypium hirsutum) plays an important role in the utilization of hybrid vigor. However, the molecular mechanism of the GMS is still unclear. While numerous studies have demonstrated that microRNAs (miRNA) regulate flower and anther development, whether different small RNA regulations exist in GMS and its wild type is unclear. To investigate the global expression and complexity of small RNAs during cotton anther development, three small RNA libraries were constructed from the anthers of three development stages each from fertile wild type (WT) and its GMS mutant cotton.

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