Physiological and molecular mechanisms underlying graft compatibility.

Pina, Ana; Cookson, Sarah Jane; Calatayud, A.; Trinchera, A.; Errea, P.

doi:10.1079/9781780648972.0132

Cited by 51 publications

(73 citation statements)

References 78 publications

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“…In addition, the presence of values out of the range of the parents suggest the influence of genetic background on the expression of these polygenic traits, which are potentially inherited from a grandparent (parent of a parent). It should be taken into account that the transmission of graft incompatibility is important for optimizing configuration crosses and improving efficiency of both scion and rootstock breeding programs [6].…”

Section: Resultsmentioning

confidence: 99%

“…It may take several years to manifest failure with establishing graft-union that leads to major economic losses to growers and nurseries. In addition, the significant delay in the appearance of incompatibility symptoms renders the evaluation and transfer of new fruit tree genotypes to industry time-consuming, expensive and laborious [5, 6].…”

Section: Introductionmentioning

confidence: 99%

“…Failure in producing long-leaving healthy grafts greatly affects the range of available Prunus rootstocks for apricot cultivation [8]. Incompatible graft combinations show weakness of the graft interface and breakage of the rootstock/scion union, which are typical symptoms of the localized type of incompatibility [5, 6, 9]. The late manifestation of this type of incompatibility has made that many studies focused on the early physiological and molecular mechanisms underlying graft union formation and graft (in)-compatibility in apricot grafted onto different Prunus rootstocks [10–13].…”

Section: Introductionmentioning

confidence: 99%

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Inheritance of self- and graft-incompatibility traits in an F1 apricot progeny

et al. 2019

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Floral self-incompatibility affecting yearly yield in a weather-dependent manner and graft incompatibility affecting longevity of mature trees are two important traits for apricot production. However, genetic control of graft compatibility and relationship between these traits are unknown. Here, we analyzed its inheritance in an F 1 apricot progeny from a cross between self- and graft- incompatible and self- and graft-compatible cultivars. Hybrid individuals were genotyped for establishing self-incompatibility status and grafted on the plum rootstock ‘Marianna 2624’. Phenotyping of graft incompatibility was done at two time points, one month and one year after grafting. Anatomical (necrotic layer, bark and wood discontinuity for two consecutive years) and cytomorphological (cell proliferation, cell arrangement and cell shape one month after grafting) characteristics related to graft compatibility displayed continuous variation within the progeny, suggesting a polygenic inheritance. Using the Pearson correlation test, strong and significant correlations were detected between anatomical and cytomorphological traits that may reduce the number of characters for screening genotypes or progenies for graft compatibility in segregating crosses. Furthermore, no correlation existed between self- and graft incompatibility traits suggesting that they are independent inheritance traits. Hence, screening an extended hybrid population is required for pyramiding these traits in breeding programs.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Inheritance of self- and graft-incompatibility traits in an F1 apricot progeny

et al. 2019

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“…However, in heterografted grapevine, transcripts associated with stress and defense responses are also accumulated. The cells at the graft interface are capable of detecting the presence of the non-self grafting partner, which may induce an immune-type response (Cookson andOllat, 2013 Cookson et al, 2014 ; ). However, some studies revealed that plant grafting induced phenotypic variation in anatomy and morphology ( ; Wang et al, 2017Reig et al, 2018.…”

Section: Cosgrove 2005mentioning

confidence: 99%

“…To the best of our knowledge, the most promising studies of the re-establishment of vascular tissues have studied the e ects of phenolic ff compounds ( ; ). More speci cally, Canas et al, 2015Pina et al, 2017 fi several studies have indicated that phenolic compounds are involved in ligni cation. Such compounds are important to the early growth stages fi of connections between scion rootstock combinations, as the cell walls of xylem tissues are dynamic structures composed of polysaccharides, phenolic compounds (for example, lignins), minerals, and proteins (Liu, 2012Herrero et al, 2014 ).…”

Section: Phenolic Compounds In Grafted Plant Vascular Connectionsmentioning

confidence: 99%

An overview of grafting re-establishment in woody fruit species

Báron

Amaro

Pina

et al. 2019

Scientia Horticulturae

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Molecular Aspects of Grafting in Woody Plants

Assunção

Tedesco

Fevereiro

2021

Annual Plant Reviews Online

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Grafting is an ancient technique especially used in horticulture and in orchards as a tool for plant propagation and improvement. Although grafting has brought incredible benefits to agriculture and is being used worldwide in the cultivation of almost every fruit tree, the mechanisms, and pathways driving the formation or the incompatibilities of graft unions are still largely unknown. Recently, the potential of grafting has resurfaced in the literature and molecular approaches are currently contributing to the understanding of graft union formation and the phenomenon of scion–rootstock graft incompatibility. This work focuses on the cellular and molecular mechanisms of graft formation in woody plants, highlighting the identified regulators of this process in molecular terms. We review how the healing of the union proceeds in incompatible grafts, the challenge of phenotyping graft incompatibility, and the detection methods developed for its prediction. In the pursuit of finding sustainable solutions for agriculture, while faced with the alarming predictions of climate changes, grafting is being revaluated as a new biotechnological tool. Therefore, some examples of how we can broaden the scope of useful grafting applications, exploit biodiversity in a unique chimeric plant, and manipulate phenotypic traits by delivering proteins and RNAs across graft unions, are also discussed. Research in this field still has a long way to go before the exciting prospect of deliberately combining multiple plant traits becomes reality.

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Physiological and molecular mechanisms underlying graft compatibility.

Cited by 51 publications

References 78 publications

Inheritance of self- and graft-incompatibility traits in an F1 apricot progeny

Inheritance of self- and graft-incompatibility traits in an F1 apricot progeny

An overview of grafting re-establishment in woody fruit species

Molecular Aspects of Grafting in Woody Plants

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