Genetic nature of low capsaicin content in the variant strains induced by grafting in Capsicum annuum L.

Yagishita, Noboru; Hirata, Yutaka; Mizukami, Hajime; Ohashi, Hiromu; Yamashita, Keiko

doi:10.1007/bf00027224

Cited by 18 publications

(8 citation statements)

References 7 publications

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“…He and his co-workers did their best to describe the variation they obtained : mostly continuous variation for morphological characteristics such as shape and size of leaves and fruits (Kasahara et al, 1973) . The same goes for the articles of Yagishita & Hirata (1987) and Yagishita et al . (1990) .…”

Section: Discussionmentioning

confidence: 79%

Graft-transformation, the mechanism for graft-induced genetic changes in higher plants

Ohta

1991

Euphytica

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In our previous report of a series of experiments involving ordinary grafting, virus-inoculated grafting and DNA treatment in Capsicum annuum L., we described the variants as well as gene analyses of individual variants, together with the characteristics of the graft-induced genetic changes obtained .Microhistological analysis of the stock stems revealed that chromatin masses, stained to greenish blue and in various sizes and shapes, were moving through cell wall and intercellular space from the lignifying and dying cells, stained to lighter purplish brown, towards the vascular bundles (Fig . 1) . I discussed the mechanisms of chromatin transfer from the stock dying cells through the vascular system across the graft-union to the growing point(s) of the scion (Fig . 3), and how that process causes transformation in the fast dividing scion flower primordia (Fig . 4) . The significance of chromatin translocation can be understood in the following way : Genetic information is never transmitted from the stock to the scion, unless a DNA molecule larger than a functional unit such as a gene translocates from the stock, and unless the DNA molecules per se are integrated into new cell nuclei of the scion . In other words, no transmission of genetic information will take place, if DNA molecules of the stock disintegrated to nucleotides, as when a protein molecule is digested into amino acids, and are utilized by the scion simply as raw material in the formation of new cell nuclei with its own DNA strand as template .Also discussed were the significance of `mentor methods', and the importance of distinguishing between horticultural graft and genetical graft (Fig . 2) .

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Section: Discussionmentioning

confidence: 79%

Graft-transformation, the mechanism for graft-induced genetic changes in higher plants

Ohta

1991

Euphytica

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“…Pandey (1985) proved the authenticity of the grafted hybrids in theory based on mass data. Ohta (1991) and Yagishita et al (1990) in their respective grafted hybrid tests got the grafted hybrids of pepper, eggplant, and other vegetables. Meng and Lu (1989) achieved the Fig.…”

Section: Discussionmentioning

confidence: 99%

A poplar chimera with stable differentiation regulation

Zhang

Wang

Liang

2009

Front. Agric. China

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Populus shenzhou, a chimera, is divided into three types: A, B, and C. Among them, Type B is the chimera of Type A and Type C. Type B of P. shenzhou, as a progenitive material was cut and differentiated stably into Type A, Type B, and Type C, at an average differentiation rate of approximately 79.6%, 18.3%, and 2.2%, respectively. The studies on SSR identification of P. shenzhou showed that all tissues, including the bud, leafstalk, leaf nervation, phloem, and xylem, were a chimera. There were two kinds of color roots of the three types. The rufous roots were identified as Type A tissue and the yellow roots as Type C tissue by the SSR molecular markers.

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“…Lots of scientists have used mentor grafting to produce heritable graft-induced variation and graft hybrids. Graft-induced changes on several plant characteristics producing many phenotypic variants have been reported in peppers ( Hirata and Yagishita, 1986 ; Yagishita and Hirata, 1986 , 1987 ; Yagishita et al, 1990 ; Taller et al, 1998 , 1999 ; Tsaballa et al, 2013 ). These findings were clearly pointing out toward trafficking of genetic information between the two grafted partners ( Figure 1 ).…”

Section: Trafficking Of Genetic Information Exchange Between the Rootmentioning

confidence: 92%

Vegetable Grafting From a Molecular Point of View: The Involvement of Epigenetics in Rootstock-Scion Interactions

Tsaballa¹,

Xanthopoulou²,

Madesis

et al. 2021

Front. Plant Sci.

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Vegetable grafting is extensively used today in agricultural production to control soil-borne pathogens, abiotic and biotic stresses and to improve phenotypic characteristics of the scion. Commercial vegetable grafting is currently practiced in tomato, watermelon, melon, eggplant, cucumber, and pepper. It is also regarded as a rapid alternative to the relatively slow approach of breeding for increased environmental-stress tolerance of fruit vegetables. However, even though grafting has been used for centuries, until today, there are still many issues that have not been elucidated. This review will emphasize on the important mechanisms taking place during grafting, especially the genomic interactions between grafting partners and the impact of rootstocks in scion’s performance. Special emphasis will be drawn on the relation between vegetable grafting, epigenetics, and the changes in morphology and quality of the products. Recent advances in plant science such as next-generation sequencing provide new information regarding the molecular interactions between rootstock and scion. It is now evidenced that genetic exchange is happening across grafting junctions between rootstock and scion, potentially affecting grafting-mediated effects already recorded in grafted plants. Furthermore, significant changes in DNA methylation are recorded in grafted scions, suggesting that these epigenetic mechanisms could be implicated in grafting effects. In this aspect, we also discuss the process and the molecular aspects of rootstock scion communication. Finally, we provide with an extensive overview of gene expression changes recorded in grafted plants and how these are related to the phenotypic changes observed. Τhis review finally seeks to elucidate the dynamics of rootstock-scion interactions and thus stimulate more research on grafting in the future. In a future where sustainable agricultural production is the way forward, grafting could play an important role to develop products of higher yield and quality in a safe and “green” way.

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Genetic nature of low capsaicin content in the variant strains induced by grafting in Capsicum annuum L.

Cited by 18 publications

References 7 publications

Graft-transformation, the mechanism for graft-induced genetic changes in higher plants

Graft-transformation, the mechanism for graft-induced genetic changes in higher plants

A poplar chimera with stable differentiation regulation

Vegetable Grafting From a Molecular Point of View: The Involvement of Epigenetics in Rootstock-Scion Interactions

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