Mapping of two suppressors of OVATE (sov) loci in tomato

Rodríguez, Gustavo; Kim, H J; Knaap, Esther van der

doi:10.1038/hdy.2013.45

Cited by 63 publications

(50 citation statements)

References 41 publications

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“…Results from this study showed that sun enhanced the effect of the ovate in controlling the pear-shaped fruit form. However, whereas sun×ovate resulted in pear-shaped fruit, the effect of ovate is also enhanced into a distinct pear-shaped form by two unrelated suppressor loci, sov1 and sov2 [36]. Further, comparisons among the LA1589 NILs showed that fs8.1 alone did not significantly affect the elongation and size of the fruit.…”

Section: Sun Ovate and Fs81 Appear To Function In Different But Relmentioning

confidence: 75%

The control of tomato fruit elongation orchestrated by sun, ovate and fs8.1 in a wild relative of tomato

Clevenger

Sun

et al. 2015

Plant Science

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Section: Sun Ovate and Fs81 Appear To Function In Different But Relmentioning

confidence: 75%

The control of tomato fruit elongation orchestrated by sun, ovate and fs8.1 in a wild relative of tomato

Clevenger

Sun

et al. 2015

Plant Science

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“…These second site modifiers have been identified through mutagenesis screens and crosses to different backgrounds. Background-dependent modifiers have been found for developmental pathways as diverse as tomato (Solanum lycopersicum) fruit size and Drosophila (Drosophila melanogaster) bristle number (Gibert et al, 2005;Rodríguez et al, 2013). Maize (Zea mays) is particularly rich for the identification of modifiers because of the high genetic variation among maize inbred lines: to illustrate this point, the coding sequence variation between two maize inbreds is as great as the coding sequence variation between humans and chimpanzees (Pan troglodytes; Buckler et al, 2006), and the noncoding intergenic space is also remarkably variable between inbreds (Brunner et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

The Second Site Modifier, Sympathy for the ligule, Encodes a Homolog of Arabidopsis ENHANCED DISEASE RESISTANCE4 and Rescues the Liguleless narrow Maize Mutant

et al. 2019

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Liguleless narrow1 encodes a plasma membrane-localized receptor-like kinase required for normal development of maize (Zea mays) leaves, internodes, and inflorescences. The semidominant Lgn-R mutation lacks kinase activity, and phenotypic severity is dependent on inbred background. We created near isogenic lines and assayed the phenotype in multiple environments. Lgn-R plants that carry the B73 version of Sympathy for the ligule (Sol-B) fail to grow under hot conditions, but those that carry the Mo17 version (Sol-M) survive at hot temperatures and are significantly taller at cool temperatures. To identify Sol, we used recombinant mapping and analyzed the Lgn-R phenotype in additional inbred backgrounds. We identified amino acid sequence variations in GRMZM2G075262 that segregate with severity of the Lgn-R phenotypes. This gene is expressed at high levels in Lgn-R B73, but expression drops to nonmutant levels with one copy of Sol-M. An EMS mutation solidified the identity of SOL as a maize homolog of Arabidopsis (Arabidopsis thaliana) ENHANCED DISEASE RESISTANCE4 (EDR4). SOL, like EDR4, is induced in response to pathogen-associated molecular patterns such as flg22. Integrated transcriptomic and phosphoproteomic analyses suggest that Lgn-R plants constitutively activate an immune signaling cascade that induces temperature-sensitive responses in addition to defects in leaf development. We propose that aspects of the severe Lgn-R developmental phenotype result from constitutive defense induction and that SOL potentially functions in repressing this response in Mo17 but not B73. Identification of LGN and its interaction with SOL provides insight into the integration of developmental control and immune responses.

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“…More specifically, exogenous auxin clearly elongated the proximal end of the organ leading to pear-shaped fruits resembling the ova-te+sun fruits (Fig. 1B, C) and fruits of the variety Yellow Pear which carries ovate and sov1 (Rodríguez et al 2013. To validate the classification of the auxin-treated fruits with ovate, PCA was performed between the 3 WBA auxintreated and the three NILs using nine fruit shape attributes.…”

Section: Resultsmentioning

confidence: 99%

A Comparison of sun, ovate, fs8.1 and Auxin Application on Tomato Fruit Shape and Gene Expression

Wang

Clevenger

Illa-Berenguer

et al. 2019

Plant and Cell Physiology

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Elongated tomato fruit shape is the result of the action of the fruit shape genes possibly in coordination with the phytohormone auxin. To investigate the possible link between auxin and the fruit shape genes, a series of auxin (2,4-D) treatments were performed on the wild-type and the fruit shape nearisogenic lines (NILs) in Solanum pimpinellifolium accession LA1589 background. Morphological and histological analyses indicated that auxin application approximately 3 weeks before anthesis led to elongated pear-shaped ovaries and fruits, which was mainly attributed to the increase of ovary/ fruit proximal end caused by the increase of both cell number and cell size. Fruit shape changes caused by SUN, OVATE and fs8.1 were primarily due to the alterations of cell number along different growth axes. Particularly, SUN caused elongation by extending cell number along the entire proximaldistal axis, whereas OVATE caused fruit elongation in the proximal area, which was most similar to the effect of auxin on ovary shape. Expression analysis of flower buds at different stages in fruit shape NILs indicated that SUN had a stronger impact on the transcriptome than OVATE and fs8.1. The sun NIL differentially expressed genes were enriched in several biological processes, such as lipid metabolism, ion transmembrane and actin cytoskeleton organization. Additionally, SUN also shifted the expression of the auxinrelated genes, including those involved in auxin biosynthesis, homeostasis, signal transduction and polar transport, indicating that SUN may regulate ovary/fruit shape through modifying the expression of auxin-related genes very early during the formation of the ovary in the developing flower.

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Mapping of two suppressors of OVATE (sov) loci in tomato

Cited by 63 publications

References 41 publications

The control of tomato fruit elongation orchestrated by sun, ovate and fs8.1 in a wild relative of tomato

The control of tomato fruit elongation orchestrated by sun, ovate and fs8.1 in a wild relative of tomato

The Second Site Modifier, Sympathy for the ligule, Encodes a Homolog of Arabidopsis ENHANCED DISEASE RESISTANCE4 and Rescues the Liguleless narrow Maize Mutant

A Comparison of sun, ovate, fs8.1 and Auxin Application on Tomato Fruit Shape and Gene Expression

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