Enhancer-Promoter Interaction of <i>SELF PRUNING 5G</i> Shapes Photoperiod Adaptation

Zhang, Shuaibin; Jiao, Zhicheng; Liu, Lei; Wang, Ketao; Zhong, Deyi; Li, Shengben; Zhao, Tingting; Xu, Xiangyang; Cui, Xia

doi:10.1104/pp.18.01137

Cited by 37 publications

(23 citation statements)

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“…1b). We then systematically measured the CR of a stable recombinant inbred line (RIL) population, including more than 200 independent lines derived from these two parents 24 . The distribution of CR resembled an approximately normal distribution ( Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Moneymaker (MM) and S. lycopersicum var. cerasiforme (CC) were used as materials for association analysis, as we described previously 24 . To clone the gene, we generated a BC 3 F 2 population derived from the cross between two RILs, ST052 and ST059, which shared 90% sequence identity other than the qFIS1 locus.…”

Section: Methodsmentioning

confidence: 99%

“…The genome sequencing data of the RIL population and their parents were obtained from our previously published work 24 . The paired-end reads of MM, CC, and the RILs were mapped to the tomato reference genome (SL2.50).…”

Section: Methodsmentioning

confidence: 99%

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FIS1 encodes a GA2-oxidase that regulates fruit firmness in tomato

et al. 2020

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Fruit firmness is a target trait in tomato breeding because it facilitates transportation and storage. However, it is also a complex trait and uncovering the molecular genetic mechanisms controlling fruit firmness has proven challenging. Here, we report the map-based cloning and functional characterization of qFIRM SKIN 1 (qFIS1), a major quantitative trait locus that partially determines the difference in compression resistance between cultivated and wild tomato accessions. FIS1 encodes a GA2-oxidase, and its mutation leads to increased bioactive gibberellin content, enhanced cutin and wax biosynthesis, and increased fruit firmness and shelf life. Importantly, FIS1 has no unfavorable effect on fruit weight or taste, making it an ideal target for breeders. Our study demonstrates that FIS1 mediates gibberellin catabolism and regulates fruit firmness, and it offers a potential strategy for tomato breeders to produce firmer fruit.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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FIS1 encodes a GA2-oxidase that regulates fruit firmness in tomato

et al. 2020

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“…Therefore, for many such species, domestication or dispersal to higher latitudes or altitudes has selected for variants that abolish or reduce the strength of the short‐day flowering response (Table ). For instance, two recent elegant studies in tomato ( Solanum lycopersicum ) attribute the shift from a strong short‐day response to early, nearly day‐neutral flowering to allelic variation in SELF PRUNING 5G ( SPG5 ), a paralog of the tomato FT ortholog SINGLE FLOWER TRUSS ( SFT ) (Soyk et al , ; Zhang et al , ). SP5G has evolved to function as a repressor of flowering in long days, but a 52‐bp deletion in a 3′ UTR enhancer region, which causes improper transcript termination rather than reduced transcript initiation, shows evidence of selection during domestication (Zhang et al , ).…”

Section: Domesticationmentioning

confidence: 99%

Evolutionary processes from the perspective of flowering time diversity

Gaudinier

Blackman

2019

New Phytologist

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Summary Although it is well appreciated that genetic studies of flowering time regulation have led to fundamental advances in the fields of molecular and developmental biology, the ways in which genetic studies of flowering time diversity have enriched the field of evolutionary biology have received less attention despite often being equally profound. Because flowering time is a complex, environmentally responsive trait that has critical impacts on plant fitness, crop yield, and reproductive isolation, research into the genetic architecture and molecular basis of its evolution continues to yield novel insights into our understanding of domestication, adaptation, and speciation. For instance, recent studies of flowering time variation have reconstructed how, when, and where polygenic evolution of phenotypic plasticity proceeded from standing variation and de novo mutations; shown how antagonistic pleiotropy and temporally varying selection maintain polymorphisms in natural populations; and provided important case studies of how assortative mating can evolve and facilitate speciation with gene flow. In addition, functional studies have built detailed regulatory networks for this trait in diverse taxa, leading to new knowledge about how and why developmental pathways are rewired and elaborated through evolutionary time.

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“…The spread of agriculture from the areas of domestication has involved the dispersal of crop plants well beyond the native range of their progenitors and would often have required adaptation to new environments (Jones et al, 2008). In this respect, flowering time is a key phenomenon in the local adaptation of crops (Xue et al, 2008;Hung et al, 2012;Liu et al, 2014;Lu et al, 2017;Soyk et al, 2017;Zhang et al, 2018). A long suitable growth season facilitates late flowering, which leads to a longer vegetative growth period and the accumulation of more storage reserves, whereas a short growth season is associated with early flowering (Roux et al, 2006).…”

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confidence: 99%

FLOWERING LOCUS T Improves Cucumber Adaptation to Higher Latitudes

Wang

et al. 2019

Plant Physiol.

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Flowering time plays a crucial role in the geographical adaptation of most crops during domestication. Cucumber (Cucumis sativus) is a major vegetable crop worldwide. From its tropical origin on the southern Asian continent, cucumber has spread over a wide latitudinal cline, but the molecular mechanisms underlying this latitudinal adaptation and the expansion of domesticated cucumber are largely unclear. Here, we report the cloning of two flowering time loci from two distinct cucumber populations and show that two large deletions upstream from FLOWERING LOCUS T (FT) are associated with higher expression of FT and earlier flowering. We determined that the two large deletions are pervasive and occurred independently in Eurasian and East-Asian populations. Nucleotide diversity analysis further revealed that the FT locus region of the cucumber genome contains a signature for a selective sweep during domestication. Our results suggest that large genetic structural variations upstream from FT were selected for and have been important in the geographic spread of cucumber from its tropical origin to higher latitudes. Crop domestication is the outcome of selecting plants for increased adaptability to cultivation (Gepts, 2004; Gaudin et al., 2011; Chen et al., 2015) and has been a fundamental feature of human society since the origins of agriculture. The domestication of crop plants is

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Enhancer-Promoter Interaction of SELF PRUNING 5G Shapes Photoperiod Adaptation

Cited by 37 publications

References 60 publications

FIS1 encodes a GA2-oxidase that regulates fruit firmness in tomato

FIS1 encodes a GA2-oxidase that regulates fruit firmness in tomato

Evolutionary processes from the perspective of flowering time diversity

FLOWERING LOCUS T Improves Cucumber Adaptation to Higher Latitudes

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