Characterization of IQ Domain Gene Homologs as Common Candidate Genes for Elongated Fruit Shape in Cucurbits

Jin, Bingkui; Kim, Joonyup; Jung, Jaemin; Kim, Daeun; Park, Younghoon

doi:10.12972/kjhst.20180010

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…The IQD is a conserved region of 67 amino acids and contains up to three regularly spaced IQ motifs that promote CaM binding in the presence of Ca 2+ [80][81][82]. In tomatoes, the shape change mediated by SUN is consistent with the cell division stage after 7-10 days of pollination [83], which increases cell elongation and division along the proximo-distal axis [84] and can be used to determine the fruit morphology by regulating the microtubule dynamics. Lazzaro et al [65] proposed a model to describe the regulation of the tomato fruit shape by SUN, OFP, and TRM interaction, in association with microtubule development.…”

Section: Flmentioning

confidence: 99%

Genetic and Molecular Regulation Mechanisms in the Formation and Development of Vegetable Fruit Shape

et al. 2022

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Vegetable crops have a long history of cultivation worldwide and rich germplasm resources. With its continuous development and progress, molecular biology technology has been applied to various fields of vegetable crop research. Fruit is an important organ in vegetable crops, and fruit shape can affect the yield and commercialization of vegetables. In nature, fruits show differences in size and shape. Based on fruit shape diversity, the growth direction and coordination mechanism of fruits remain unclear. In this review, we discuss the latest research on fruit shape. In addition, we compare the current theories on the molecular mechanisms that regulate fruit growth, size, and shape in different vegetable families.

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Section: Flmentioning

confidence: 99%

Genetic and Molecular Regulation Mechanisms in the Formation and Development of Vegetable Fruit Shape

et al. 2022

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Development of DNA markers for Slmlo1.1, a new mutant allele of the powdery mildew resistance gene SlMlo1 in tomato (Solanum lycopersicum)

Kim

Jin

et al. 2018

Genome

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Reductions in growth and quality due to powdery mildew (PM) disease cause significant economic losses in tomato production. Oidium neolycopersici was identified as the fungal species responsible for tomato PM disease in South Korea in the present study, based on morphological and internal transcribed spacer DNA sequence analyses of PM samples collected from two remote regions (Muju and Miryang). The genes involved in resistance to this pathogen in the tomato accession 'KNU-12' (Solanum lycopersicum var. cerasiforme) were evaluated, and the inheritance of PM resistance in 'KNU-12' was found to be conferred via simple Mendelian inheritance of a mutant allele of the PM susceptibility locus Ol-2 (SlMlo1). Full-length cDNA analysis of this newly identified mutant allele (Slmlo1.1) showed that a 1-bp deletion in its coding region led to a frameshift mutation possibly resulting in SlMlo1 loss-of-function. An alternatively spliced transcript of Slmlo1.1 was observed in the cDNA sequences of 'KNU-12', but its direct influence on PM resistance is unclear. A derived cleaved amplified polymorphic sequence (dCAPS) and a high-resolution melting (HRM) marker were developed based on the 1-bp deletion in Slmlo1.1, and could be used for efficient marker-assisted selection (MAS) using 'KNU-12' as the source for durable and broad-spectrum resistance to PM.

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Morphological, histological and transcriptomic mechanisms underlying different fruit shapes in Capsicum spp.

Wang,

Ma,

Cao

et al. 2024

PeerJ

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Pepper (Capsicum spp.) has a long domestication history and has accumulated diverse fruit shape variations. The illustration of the mechanisms underlying different fruit shape is not only important for clarifying the regulation of pepper fruit development but also critical for fully understanding the plant organ morphogenesis. Thus, in this study, morphological, histological and transcriptional investigations have been performed on pepper accessions bearing fruits with five types of shapes. From the results it can be presumed that pepper fruit shape was determined during the developmental processes before and after anthesis, and the anthesis was a critical developmental stage for fruit shape determination. Ovary shape index variations of the studied accessions were mainly due to cell number alterations, while, fruit shape index variations were mainly attributed to the cell division and cell expansion variations. As to the ovary wall thickness and pericarp thickness, they were regulated by both cell division in the abaxial-adaxial direction and cell expansion in the proximal-distal and medio-lateral directions. Transcriptional analysis discovered that the OFP-TRM and IQD-CaM pathways may be involved in the regulation of the slender fruit shape and the largest ovary wall cell number in the blocky-shaped accession can be attributed to the higher expression of CYP735A1, which may lead to an increased cytokinin level. Genes related to development, cell proliferation/division, cytoskeleton, and cell wall may also contribute to the regulation of helical growth in pepper. The insights gained from this study are valuable for further investigations into pepper fruit shape development.

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Characterization of IQ Domain Gene Homologs as Common Candidate Genes for Elongated Fruit Shape in Cucurbits

Abstract: This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Cited by 3 publications

References 32 publications

Genetic and Molecular Regulation Mechanisms in the Formation and Development of Vegetable Fruit Shape

Genetic and Molecular Regulation Mechanisms in the Formation and Development of Vegetable Fruit Shape

Development of DNA markers for Slmlo1.1, a new mutant allele of the powdery mildew resistance gene SlMlo1 in tomato (Solanum lycopersicum)

Morphological, histological and transcriptomic mechanisms underlying different fruit shapes in Capsicum spp.

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