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Grafting joins plant parts, forming a genetically composite organism functioning as one plant. A scion is a shoot from one plant that, after grafting, grows on the upper part of another plant. The stock receives the scion and serves as the root system for the grafted plant. Graft hybridisation refers
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form between the cells of tissues of both ends of the graft junction. Plastid DNA has been proven to be exchanged through the graft union. Entire nuclear genomes are also known to cross the graft junction through plasmodesmata. Graft hybridisation is explained by horizontal gene transfer, DNA
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Hybridisation through grafting has the potential to create economically significant hybrid plants. Graft hybridisation is a simple and practical method for breeding woody plants, particularly helpful for overcoming reproductive isolation and difficulties due to highly heterozygous genotypes.
139:. This idea has been widely rejected for more than a century, until it has been proven to occur with modern methods. Evidence in favour of graft hybridisation was dismissed as fraudulent.
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cells. First, undifferentiated callus tissue arises, which later differentiates and forms vascular tissue, which connects both partners of the graft union.
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are not true hybrids. In graft chimeras it is possible that the two parent tissues become separated again, revealing the original parents.
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Zhang, Shulin; Zhao, Jun-Hui; Diao, Songfeng; Feng, Luying; Jia, Wenqing; Li, Fang-Dong; Zhu, Gaopu; Zhao, Han (2 June 2023).
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Wang, Jing; Jiang, Libo; Wu, Rongling (April 2017). "Plant grafting: how genetic exchange promotes vascular reconnection".
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Obolensky, G. (1960). "Grafting of plant embryos and the use of ultrasonics: Investigations on vegetative hybridisation".
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Interfamily grafted hybrids Vitis vinifera / Schisandra chinensis resulted in genetic, phenotypic, and metabolic changes
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Genetic material can be passed from one cell to another through plasmodesmata, transversing the graft junction
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Mudge, Ken; Janick, Jules; Scofield, Steven; Goldschmidt, Eliezer E. (2009). "A History of
Grafting".
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to a form of asexual hybridisation where heritable modifications can be induced through grafting.
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Liu, Y-S; Wang, Q-L; Li, B-Y (January 2010). "New insights into plant graft hybridization".
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Liu, Yongsheng; Li, Xiuju (2014). "Has Darwin's
Pangenesis Been Rediscovered?".
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Tanaka, Tyôzaburô (March 1927). "Bizzarria—A clear case of periclinal chimera".
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through graft hybridisation (vegetative hybridisation) have also been recorded.
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transformation, and the long-distance transport of mRNA and small RNAs.
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Graft hybridisation however involves the transfer of genetic material.
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Liu, Yongsheng (2018). "Darwin's
Pangenesis and Graft Hybridization".
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Prakash, Chudamani Sharma; Li, Jieqin; Wang, Yi-Hong (30 June 2023).
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Historical and Modern
Genetics of Plant Graft Hybridization
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The successful creation of an intergeneric graft hybrid of
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Melnyk, Charles W.; Meyerowitz, Elliot M. (March 2015).
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24:Grafted tomato plant with a clear graft junction
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492:"Hybridization by Grafting: A New Perspective?"
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275:Goldschmidt, Eliezer E. (17 December 2014).
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671:Horticultural techniques
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109:has been demonstrated.
112:Hereditary changes of
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158:Horticultural Reviews
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681:Asexual reproduction
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160:. pp. 437–493.
328:Journal of Genetics
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43:Mechanism
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