Rootstock affects the blend of biogenic volatile organic compounds emitted by &amp;#8216;Hass&amp;#8217; avocado

Ceballos, Ricardo; Rioja, Tommy

doi:10.4067/s0718-58392019000200330

Cited by 9 publications

(8 citation statements)

References 29 publications

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“…One possible caveat of our heritability estimates refers to the number of fruits damaged by thrips. Despite it is known that rootstocks may affect the blend of biogenic volatile organic compounds emitted by "Hass" (Ceballos and Rioja, 2019) and therefore influence scion pest attraction, -or repellence (Kainer et al, 2018); in our study, thrips' pressure was not homogeneous across nor within orchards. In other words, different rootstocks were not equally exposed to the pest, meaning that the phenotypic vector and the relatedness matrix were fortuitously unbalanced within the "genetic prediction" model.…”

Section: Significant Rootstock Effects For Various Complex Harvest and Quality Traitscontrasting

confidence: 67%

“…Furthermore, rootstocks from different races change the carbohydrate accumulation profile in trees of the same variety, which is known to drive productivity (Whiley and Wolstenholme, 1990) and can ultimately influence alternate bearing, yield components, and nutrition on "Hass" (Mickelbart et al, 2007). Rootstocks can even affect postharvest anthracnose development (Willingham et al, 2001) and the blend of biogenic volatile organic compounds emitted by "Hass" (Ceballos and Rioja, 2019), which could be associated with scion pest attraction. Besides, because rootstock-scion interaction works both ways, different scions may also have distinct effects on avocado rootstock traits, such as arbuscular mycorrhizal, root hair development (Shu et al, 2017), and plant-soil exchanges (Sedlacek et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Inheritance of Rootstock Effects in Avocado (Persea americana Mill.) cv. Hass

et al. 2020

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Grafting is typically utilized to merge adapted seedling rootstocks with highly productive clonal scions. This process implies the interaction of multiple genomes to produce a unique tree phenotype. However, the interconnection of both genotypes obscures individual contributions to phenotypic variation (rootstock-mediated heritability), hampering tree breeding. Therefore, our goal was to quantify the inheritance of seedling rootstock effects on scion traits using avocado (Persea americana Mill.) cv. Hass as a model fruit tree. We characterized 240 diverse rootstocks from 8 avocado cv. Hass orchards with similar management in three regions of the province of Antioquia, northwest Andes of Colombia, using 13 microsatellite markers simple sequence repeats (SSRs). Parallel to this, we recorded 20 phenotypic traits (including morphological, biomass/reproductive, and fruit yield and quality traits) in the scions for 3 years (2015–2017). Relatedness among rootstocks was inferred through the genetic markers and inputted in a “genetic prediction” model to calculate narrow-sense heritabilities (h2) on scion traits. We used three different randomization tests to highlight traits with consistently significant heritability estimates. This strategy allowed us to capture five traits with significant heritability values that ranged from 0.33 to 0.45 and model fits (r) that oscillated between 0.58 and 0.73 across orchards. The results showed significance in the rootstock effects for four complex harvest and quality traits (i.e., total number of fruits, number of fruits with exportation quality, and number of fruits discarded because of low weight or thrips damage), whereas the only morphological trait that had a significant heritability value was overall trunk height (an emergent property of the rootstock–scion interaction). These findings suggest the inheritance of rootstock effects, beyond root phenotype, on a surprisingly wide spectrum of scion traits in “Hass” avocado. They also reinforce the utility of polymorphic SSRs for relatedness reconstruction and genetic prediction of complex traits. This research is, up to date, the most cohesive evidence of narrow-sense inheritance of rootstock effects in a tropical fruit tree crop. Ultimately, our work highlights the importance of considering the rootstock–scion interaction to broaden the genetic basis of fruit tree breeding programs while enhancing our understanding of the consequences of grafting.

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Section: Significant Rootstock Effects For Various Complex Harvest and Quality Traitscontrasting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Inheritance of Rootstock Effects in Avocado (Persea americana Mill.) cv. Hass

et al. 2020

View full text Add to dashboard Cite

show abstract

“…One possible caveat of our heritability estimates refers to the number of fruits damaged by thrips. Despite it is known that rootstocks may affect the blend of biogenic volatile organic compounds emitted by 'Hass' (Ceballos and Rioja, 2019), and therefore influence scion pest attraction, in our study thrips' pressure was not homogeneous across nor within orchards. In other words, different rootstocks were not equally exposed to the pest, meaning that the phenotypic vector and the relatedness matrix were fortuitously unbalanced within the 'genetic prediction' model.…”

Section: N R E V I E Wmentioning

confidence: 61%

“…Furthermore, different race rootstocks change the carbohydrate accumulation profile in trees of the same variety, which is known to drive productivity (Whiley and Wolstenholme, 1990), and can ultimately influence alternate bearing, yield components and nutrition on 'Hass' avocado (Mickelbart et al, 2007). Rootstocks can even affect postharvest anthracnose development (Willingham et al, 2001), as well as the blend of biogenic volatile organic compounds emitted by 'Hass' (Ceballos and Rioja, 2019), which could be associated with scion pest attraction. Yet, since rootstock-scion interaction works both ways, different scions can have distinct effects on avocado rootstock traits, such as arbuscular mycorrhizal and root hair development (Shu et al, 2017).…”

Section: N R E V I E Wmentioning

confidence: 99%

Inheritance of Rootstock Effects in Avocado (Persea americanaMill.) cv. Hass

Reyes-Herrera

Muñoz-Baena

Velásquez-Zapata

et al. 2020

Preprint

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Grafting is typically utilized to merge adapted seedling rootstocks with highly productive clonal scions. This process implies the interaction of multiple genomes to produce a unique tree phenotype. Yet, the interconnection of both genotypes obscures individual contributions to phenotypic variation (i.e. rootstock-mediated heritability), hampering tree breeding. Therefore, our goal was to quantify the inheritance of seedling rootstock effects on scion traits using avocado (Persea americana Mill.) cv. Hass as model fruit tree. We characterized 240 rootstocks from 8 avocado cv. Hass orchards in three regions of the province of Antioquia, in the northwest Andes of Colombia, using 13 microsatellite markers (simple sequence repeats – SSRs). Parallel to this, we recorded 20 phenotypic traits (including morphological, eco-physiological, and fruit yield and quality traits) in the scions for three years (2015–2017). Relatedness among rootstocks was inferred through the genetic markers and inputted in a ‘genetic prediction’ model in order to calculate narrow-sense heritabilities (h2) on scion traits. We used three different randomization tests to highlight traits with consistently significant heritability estimates. This strategy allowed us to capture five traits with significant heritability values that ranged from 0.33 to 0.45 and model fits (R2) that oscillated between 0.58 and 0.74 across orchards. The results showed significance in the rootstock effects for four complex harvest and quality traits (i.e. total number of fruits, number of fruits with exportation quality, and number of fruits discarded because of low weight or thrips damage), while the only morphological trait that had a significant heritability value was overall trunk height (an emergent property of the rootstock-scion interaction). These findings suggest the inheritance of rootstock effects, beyond root phenotype, on a surprisingly wide spectrum of scion traits in ‘Hass’ avocado. They also reinforce the utility of SSR markers for relatedness reconstruction and genetic prediction of complex traits. This research is, up to date, the most cohesive evidence of narrow-sense inheritance of rootstock effects in a tropical fruit tree crop. Ultimately, our work reinforces the importance of considering the rootstock-scion interaction to broaden the genetic basis of fruit tree breeding programs, while enhancing our understanding of the consequences of grafting.

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“…Rootstock is the most important factor in the grafting process that influences the graft survival rate and growth indexes, physiological parameters, hormone contents, flowering order and molecular variation (Ceballos and Rioja, 2019). Selecting suitable rootstock/scion combinations can ensure high-yield and high-quality fruits (Aloni et al, 2010;Flores et al, 2010;Rouphael et al, 2010;Nguyen and Yen, 2018).…”

Section: Introductionmentioning

confidence: 99%

Rootstock screening for greenhouse tomato production under a coconut coir cultivation system

Sun

Zhao

Jiang

et al. 2021

Chil. j. agric. res.

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Grafting is an important means to overcome the obstacles of continuous cropping of solanaceous vegetables. The objective of this subject was to evaluate the performance of different rootstocks in grafted tomato (Solanum lycopersicum L.) under coconut coir cultivation. This research was carried out on a scion 'Ruifen 882' grafted onto four rootstocks ('Guangzhen 1', 'Zhenai 1', 'Ganzhen 1', and 'Guozhen 1') in comparison with non-grafted and self-grafted 'Ruifen 882' plants. The experiment was conducted in a greenhouse environment and adopted the casing grafting method with three replicates; 20 plants per replicate were employed in a randomized block design. The following variables were analyzed: graft survival rate, growth parameters (plant height, stem diameter, fresh and dry weight of above-ground part and under-ground part, root-shoot ratio and strong seedling index), physiological characteristics (chlorophyll and mineral element contents), fruit yield, and fruit quality (hardness, soluble solid, soluble sugar, titratable acid, vitamin C and lycopene). The results of growth monitoring indicated that grafting could improve the growth and development of tomato plants at the seedling stage and 'Ruifen 882'/'Guozhen 1' (R/GUO) had high grafting survival rate of nearly 98%, which is close to the self-grafted plants. Physiological analysis showed that R/GUO and 'Ruifen 882'/'Zhenai 1' (R/ ZA) significantly increased the chlorophyll content and absorption of K, Ca, Mg, Fe, Na, Mn and Cu. On fruit yield, grafts 'Ruifen 882'/'Ganzhen 1' (R/GAN) and R/GUO had better performance. Comprehensive analysis showed that the best results for tomato scion growth, development, fruit quality and yield were observed with the graft combination R/GUO.

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Rootstock affects the blend of biogenic volatile organic compounds emitted by ‘Hass’ avocado

Cited by 9 publications

References 29 publications

Inheritance of Rootstock Effects in Avocado (Persea americana Mill.) cv. Hass

Inheritance of Rootstock Effects in Avocado (Persea americana Mill.) cv. Hass

Inheritance of Rootstock Effects in Avocado (Persea americanaMill.) cv. Hass

Rootstock screening for greenhouse tomato production under a coconut coir cultivation system

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