Xenia and metaxenia in grapes: differences in berry and seed characteristics of maternal grape cv. ‘Narince’ (<i>Vitis vinifera</i>L.) as influenced by different pollen sources

Sabır, Ali

doi:10.1111/plb.12266

Cited by 48 publications

(40 citation statements)

References 38 publications

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“…Fruit set: In general fruit set rate proved to be compromised in seedless compared to seeded variants, with the only exception of Aspirant ( Figure 1B and Additional file 1: Table S3). This reduction is consistent with the observed positive correlation between fruit set rate and seed number per berry [115] or number of seeded berries [116]. Genotype, vine nutrition, cultural practices and weather conditions being equal, the main factors affecting fruit set are expected to be flower density, flower fertility and pollination efficiency (this last is not relevant if vegetative parthenocarpy occurs) [117][118][119].…”

Section: The Effect Of Seed Content On Bunch/berry Featuressupporting

confidence: 71%

“…In the case of mutant Moscato Bianco the poor fruit set was probably related to the star conformation of flowers (having a potential detrimental effect on fertility, [98,99]). Table S9) in spite of the highly viable pollen ( Figure 8B and results obtained by [115]).…”

Section: The Effect Of Seed Content On Bunch/berry Featuresmentioning

confidence: 67%

“…Figure 8B for Chasselas apyrène and Sultanina). Consistently, Sultanina has been described as an efficient pollinizer [115].…”

Section: The Mechanisms Possible Responsible For the Seedless Phenotypementioning

confidence: 89%

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Mechanisms and Candidate Genes for Seed and Fruit Set in Grapevine

Costantini¹,

Nwafor²,

Lorenzi³

et al. 2020

Preprint

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Background: Grapevine reproductive development has direct implications on yield. It also impacts on berry and wine quality by affecting traits like cluster compactness, bunch and berry size, berry skin to pulp ratio or seedlessness. Seasonal fluctuations in yield, fruit composition and wine attributes, which are largely driven by climatic factors, are major challenges for worldwide table grape and wine industry. Accordingly, a better understanding of reproductive processes such as gamete development, fertilization, seed and fruit set is of paramount relevance for managing yield and quality. With the aim of providing new insights into this field, we searched for clones with contrasting seed content in two germplasm collections. Results: We identified eight variant pairs that seemingly differ only in seed-related characteristics while showing identical genotype when tested with the GrapeReSeq_Illumina_20K_SNP_chip and several microsatellites. We performed multi-year observations on fruit and seed set deriving from different pollination treatments, with special emphasis on the pair composed by Sangiovese and its seedless variant locally named Corinto Nero. The pollen of Corinto Nero failed to germinate in vitro and gave poor berry set when used to pollinate other varieties. Most berries from both open- and cross-pollinated Corinto Nero inflorescences did not contain seeds. The genetic analysis of seedlings derived from occasional Corinto Nero normal seeds revealed that the few Corinto Nero functional gametes are mostly unreduced. A number of genes potentially involved in sporogenesis and gametogenesis showed contrasting expression between Corinto Nero and Sangiovese and five missense single nucleotide polymorphisms were identified from transcriptomic data. The above findings suggest that the seedless phenotype of Corinto Nero is driven by pollen and/or embryo sac defects, and both events likely arise from meiotic anomalies. Finally, three genotypes, including Sangiovese and Corinto Nero, were unexpectedly found to develop fruits without pollen contribution and occasionally showed normal-like seeds. Conclusions: Our collective results suggest that parthenocarpy and stenospermocarpy are not restricted to Black Corinth (alias Korinthiaki) and Sultanina-derived cultivars. The single nucleotide polymorphisms identified between Sangiovese and its parthenocarpic variant Corinto Nero are suitable for testing as traceability markers for propagated material and as functional candidates for the seedless phenotype.

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Section: The Effect Of Seed Content On Bunch/berry Featuressupporting

confidence: 71%

Section: The Effect Of Seed Content On Bunch/berry Featuresmentioning

confidence: 67%

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Mechanisms and Candidate Genes for Seed and Fruit Set in Grapevine

Costantini¹,

Nwafor²,

Lorenzi³

et al. 2020

Preprint

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“…Berry size in a grape variety is also a genetically controlled character and normally does not vary much within a known variety. However, other factors may influence berry size; for example, the number of seeds per berry, because fruit development is regulated through hormones produced from the seed (Sabir, 2015). Significant differences were observed among the scion varieties regarding the chemical characteristics of grape must (Table 3).…”

Section: Physicochemical Characteristics Of the Grapesmentioning

confidence: 99%

Yield performance of new juice grape varieties grafted onto different rootstocks under tropical conditions

Silva

Paiva

Pimentel

et al. 2018

Scientia Horticulturae

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A B S T R A C TThe objective of this work was to evaluate the yield components and physicochemical characteristics of bunches and berries of new grape varieties for juice elaboration, which were 'Isabel Precoce' (Vitis labrusca L.) and the hybrids 'BRS Carmem', 'BRS Cora' and IAC 138-22 'Máximo' grown onto 'IAC 572' and 'IAC 766' rootstocks under tropical conditions. The yield components (number of bunches and yield per vine, as well as productivity) and the physicochemical characteristics of the bunches and berries of the eight scion-rootstock combinations were evaluated in three seasons. All data were subjected to analysis of variance and principal components analysis. The varieties 'Isabel Precoce', 'BRS Cora' and IAC 138 22 'Máximo' produced high fruit yield, with the number of bunches and yield per vine similar to one another and superior to those of 'BRS Carmem'. Significant differences occurred among varieties in the physicochemical grape characteristics. 'Isabel Precoce' and 'BRS Carmem' grapes had balanced levels of sugar and acid content, and 'BRS Cora' presented large bunches and berries, reaching high soluble solids content despite the high acidity. IAC 138-22 'Máximo' grape also had large bunches but small berries and limited potential in the accumulation of sugars. The 'IAC 766' rootstock resulted in the best performance across all four varieties evaluated, showing maximum results in terms of fruit yield and physicochemical quality attributes of grapes.

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“…Therefore, cross-pollination is essential in the normal insemination and bearing of pear trees. However, pollination with different pollen parents will have an impact on the fruit traits of the maternal plant, including the skin colour, weight, and fruit diameter, due to the pollen effect (metaxenia) [25,26]. The use of metaxenia is an effective means of regulating the development of pear stone cells and improving the quality of fruits.…”

Section: Introductionmentioning

confidence: 99%

Effects of Metaxenia on Stone Cell Formation in Pear (Pyrus bretschneideri) Based on Transcriptomic Analysis and Functional Characterization of the Lignin-Related Gene PbC4H2

Cheng

Zhang

Wang

et al. 2020

Forests

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The deposition of lignin in flesh parenchyma cells for pear stone cells, and excessive stone cells reduce the taste and quality of the fruit. The effect of metaxenia on the quality of fruit has been heavily studied, but the effect of metaxenia on stone cell formation has not been fully elucidated to date. This study used P. bretschneideri (Chinese white pear) cv. ‘Yali’ (high-stone cell content) and P. pyrifolia (Sand pear) cv. ‘Cuiguan’ (low-stone cell content) as pollination trees to pollinate P. bretschneideri cv. ‘Lianglizaosu’ separately to fill this gap in the literature. The results of quantitative determination, histochemical staining and electron microscopy indicated that the content of stone cells and lignin in YL fruit (‘Yali’ (pollen parent) × ‘Lianglizaosu’ (seed parent)) was significantly higher than that in CL fruit (‘Cuiguan’ (pollen parent) × ‘Lianglizaosu’ (seed parent)). The transcriptome sequencing results that were obtained from the three developmental stages of the two types of hybrid fruits indicated that a large number of differentially expressed genes (DEGs) related to auxin signal transduction (AUX/IAAs and ARFs), lignin biosynthesis, and lignin metabolism regulation (MYBs, LIMs, and KNOXs) between the CL and YL fruits at the early stage of fruit development. Therefore, metaxenia might change the signal transduction process of auxin in pear fruit, thereby regulating the expression of transcription factors (TFs) related to lignin metabolism, and ultimately affecting lignin deposition and stone cell development. In addition, we performed functional verification of a differentially expressed gene, PbC4H2 (cinnamate 4-hydroxylase). Heterologous expression of PbC4H2 in the c4h mutant not only restored its collapsed cell wall, but also significantly increased the lignin content in the inflorescence stem. The results of our research help to elucidate the metaxenia-mediated regulation of pear stone cell development and clarify the function of PbC4H2 in cell wall development and lignin synthesis, which establishes a foundation for subsequent molecular breeding.

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Xenia and metaxenia in grapes: differences in berry and seed characteristics of maternal grape cv. ‘Narince’ (Vitis viniferaL.) as influenced by different pollen sources

Cited by 48 publications

References 38 publications

Mechanisms and Candidate Genes for Seed and Fruit Set in Grapevine

Mechanisms and Candidate Genes for Seed and Fruit Set in Grapevine

Yield performance of new juice grape varieties grafted onto different rootstocks under tropical conditions

Effects of Metaxenia on Stone Cell Formation in Pear (Pyrus bretschneideri) Based on Transcriptomic Analysis and Functional Characterization of the Lignin-Related Gene PbC4H2

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