Fine-mapping of a major quantitative trait locus Qdff3-1 controlling flowering time in watermelon

Gimode, Winnie; Clevenger, Josh; McGregor, Cecilia

doi:10.1007/s11032-019-1087-z

Cited by 13 publications

(15 citation statements)

References 47 publications

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“…Interestingly, the DEGs in the controlled-temperature treatment were enriched in the plant hormone signal transduction pathway. Gimode et al (2020) identified PP2C as a candidate flowering time gene in watermelon using QTL-Seq method. Phosphatases (DBP), which exhibit protein phosphatase 2C activities, are important regulators that are involved in both the transcriptional and posttranslational regulations.…”

Section: Discussionmentioning

confidence: 99%

Identification of Chilling Accumulation-Associated Genes for Litchi Flowering by Transcriptome-Based Genome-Wide Association Studies

Lü

et al. 2022

Front. Plant Sci.

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Litchi is an important Sapindaceae fruit tree. Flowering in litchi is triggered by low temperatures in autumn and winter. It can be divided into early-, medium-, and late-flowering phenotypes according to the time for floral induction. Early-flowering varieties need low chilling accumulation level for floral induction, whereas the late-flowering varieties require high chilling accumulation level. In the present study, RNA-Seq of 87 accessions was performed and transcriptome-based genome-wide association studies (GWAS) was used to identify candidate genes involved in chilling accumulation underlying the time for floral induction. A total of 98,155 high-quality single-nucleotide polymorphism (SNP) sites were obtained. A total of 1,411 significantly associated SNPs and 1,115 associated genes (AGs) were identified, of which 31 were flowering-related, 23 were hormone synthesis-related, and 27 were hormone signal transduction-related. Association analysis between the gene expression of the AGs and the flowering phenotypic data was carried out, and differentially expressed genes (DEGs) in a temperature-controlled experiment were obtained. As a result, 15 flowering-related candidate AGs (CAGs), 13 hormone synthesis-related CAGs, and 11 hormone signal transduction-related CAGs were further screened. The expression levels of the CAGs in the early-flowering accessions were different from those in the late-flowering ones, and also between the flowering trees and non-flowering trees. In a gradient chilling treatment, flowering rates of the trees and the CAGs expression were affected by the treatment. Our present work for the first time provided candidate genes for genetic regulation of flowering in litchi using transcriptome-based GWAS.

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Section: Discussionmentioning

confidence: 99%

Identification of Chilling Accumulation-Associated Genes for Litchi Flowering by Transcriptome-Based Genome-Wide Association Studies

Lü

et al. 2022

Front. Plant Sci.

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“…Quantitative trait loci conditioning organic acids, VOCs, flesh and cell-wall structural compounds are yet to be discovered and mapped in watermelon. NGS technology combined with sequencing-based gene mining strategies such as bulk segregant analysis (BSA), bulked segregant analysis sequencing (BSA-seq), and genome-wide association study (GWAS) have been successfully used in gene discovery associated with agronomic and horticultural traits in watermelon ( Wei et al, 2017 ; Dong et al, 2018 , 2021 ; Ren et al, 2018 ; Zhu et al, 2019 ; Gimode et al, 2020 ; Cho et al, 2021 ; Liu et al, 2021 ; Wang C. et al, 2021 ; Wang et al, 2022 ). These technologies are useful for mining QTL linked to organic acids, VOCs, flesh and cell-wall structural compounds in watermelon.…”

Section: Molecular Markers and Quantitative Trait Loci Analysis Of Ph...mentioning

confidence: 99%

Genetic Analysis of Fruit Quality Traits in Sweet Watermelon (Citrullus lanatus var. lanatus): A Review

et al. 2022

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“…Quantitative trait loci (QTL) analysis in watermelon identified several genomic regions linked to important traits for molecular breeding. The development of various molecular marker systems linked to qualitative and quantitative phenotypic traits allowed for genetic analysis and marker-assisted breeding in watermelon [24,29,[31][32][33][34]. Genomic resources will further facilitate the breeding of novel watermelon cultivars.…”

Section: Introductionmentioning

confidence: 99%

Retrospective Genetic Analysis of Qualitative and Quantitative Traits in Sweet Watermelon (Citrullus lanatus var. lanatus): A Review

et al. 2022

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Understanding the genetic basis of a crop’s qualitative and quantitative traits is vital to designing market preferred varieties. The aim of this review is to present a retrospective genetic analysis of qualitative and quantitative phenotypic traits in sweet watermelon as a guide for trait integration and the development of novel varieties with yield potential and desirable horticultural attributes. The first section outlines genes conditioning the inheritance of plant architecture (e.g., leaf attributes and plant architecture), floral characters (flowering rate, sex expression, and male sterility), fruit traits (shape, colour, rind colour and stripe patterns and flesh colour) and seed morphology (seed length, width, size and coat colour). In the second section, developments in molecular markers and quantitative trait loci (QTL) to aid marker-assisted breeding are discussed. Further, the review highlights the clustered regularly interspaced short palindromic repeats (CRISPR/Cas9) gene-editing technology and its scope in gene manipulations and new variety development. The information presented in this review is useful for optimised and demand-led breeding to develop new varieties to serve growers, consumers and the sweet watermelon industry.

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Fine-mapping of a major quantitative trait locus Qdff3-1 controlling flowering time in watermelon

Cited by 13 publications

References 47 publications

Identification of Chilling Accumulation-Associated Genes for Litchi Flowering by Transcriptome-Based Genome-Wide Association Studies

Identification of Chilling Accumulation-Associated Genes for Litchi Flowering by Transcriptome-Based Genome-Wide Association Studies

Genetic Analysis of Fruit Quality Traits in Sweet Watermelon (Citrullus lanatus var. lanatus): A Review

Retrospective Genetic Analysis of Qualitative and Quantitative Traits in Sweet Watermelon (Citrullus lanatus var. lanatus): A Review

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