Efeito de reguladores de crescimento em uva apirênica, cv. BRS Clara

Nachtigal, Jair Costa; Camargo, U. A.; Maia, J. D. G.

doi:10.1590/s0100-29452005000200029

Cited by 12 publications

(5 citation statements)

References 3 publications

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“…The similarity between the M , M 2 , M 3 and M 4 sample sequences and those deposited in the GenBank (accession: GU828033.1) for the transcription factor of the INO gene in A. squamosa was high due to the presence of the INO gene and, consequently, of seeds in its fruits (Souza et al, 2010;Varoquaux et al, 2000). Similarity in 100% of the GenBank sequences, added as a standard with one of the sequences sampled, reinforces the hypothesis of INO gene conservation in seeded A. squamosa accessions (M 1 , M 2 , M 3 ) and in the Gefner cultivar of A. cherimola x A. squamosa (Nachtigal et al, 2005) The INO gene was amplified with bands in the accessions of the seeded sugar apple, the atemoya cultivar Gefner and in all progeny of the F 1 population. This gene did not present a band in the Brazilian seedless A. squamosa variety (P 1 ) (Figure 2).…”

Section: Plant Materials and The Inheritance Of The Seedless Characteristic In A Squamosasupporting

confidence: 53%

Inheritance of seedlessness and the molecular characterization of the INO gene in Annonaceae

et al. 2023

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The inheritance of the seedless fruit characteristic of Annona squamosa has not yet been explained. Molecular techniques may aid breeding programs, mainly in the assisted selection of the target gene. The INO gene may be related to seed development in these fruits. The objective of the present paper was to investigate the inheritance of seedlessness in the 'Brazilian seedless' sugar apple and INO gene conservation in Annona squamosa and Annona cherimola x Annona squamosa genotypes by assessing their homology with the INO database genes. The F1 generation was obtained by crossing the mutant 'Brazilian seedless' (male genitor) (P1) with the wild-type A. squamosa with seeds (M1 and M2, female genitors). The INO gene was studied in mutant and wild-type A. squamosa (P1, M1, M2 and M3) and in the Gefner atemoya (A. cherimola x A. squamosa) (M4) cultivar. The DNA was extracted from young leaves, and four sets of specific primers flanking the INO gene were amplified. The seedless characteristic was identified as stenospermatic in the fruits of parental P1, suggesting monogenic inheritance with complete dominance. High sequence similarity of the INO gene amplifications in the sugar apple accessions (M1, M2, M3) and the atemoya cultivar Gefner (M4) reinforces the hypothesis of their conservation.

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Section: Plant Materials and The Inheritance Of The Seedless Characteristic In A Squamosasupporting

confidence: 53%

Inheritance of seedlessness and the molecular characterization of the INO gene in Annonaceae

et al. 2023

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“…In the recent years, it has also become important in generating employment in large enterprises for production of table grapes (MELLO, 2010), mainly the seedless types (NACHTIGAL; CAMARGO; MAIA, 2005). The worldwide trend for the consumption of seedless grapes (Vitis vinifera L.) has increased the competition between producers, which direct efforts to meet a more demanding consumer market.…”

Section: Introductionmentioning

confidence: 99%

Characterization of maturity and quality of Brazilian apirenic grapes in the São Francisco river Valley

et al. 2012

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The objective of this study was to characterize and correlate maturity and quality of the first varieties of Brazilian seedless grapes 'BRS Clara', 'BRS Linda', 'BRS Morena', and 'Advanced Selection 8' compared with the American variety 'Crimson Seedless' in compliance with the Brazilian Normative/2002 and export standards Advanced Selection 8' is dark reddish, has large clusters, and is a very large ellipsoid berry; 'BRS Morena' is black with medium sized clusters and large berry shaped as ellipsoid to globoid; 'BRS Linda' is light green and has large sized clusters; 'Crimson' is pink and has small clusters with berries varying from medium to large sizes and ellipsoid shaped; and 'BRS Clara' is green yellowish has medium sized clusters and small berry of elongated ellipsoid shape. All varieties evaluated meet the standard for domestic market established as berry size minimum diameter 12 mm. 'BRS Clara' does not meet the export requirements of diameter. Berries of the red grapes 'BRS Morena' and 'Crimson Seedless' are firmer. The pH, titratable acidity, and soluble solids meet the official standards. Larger clusters are less acidic and present higher soluble solids/titratable acidity ratios implying that they are the sweetest type when ripe.

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“…In the recent years, it has also become important in generating employment in large enterprises for production of table grapes, mainly the seedless types. The worldwide trend for the consumption of seedless grapes has increased the competition between producers, which direct efforts to meet a more demanding consumer market [1,2].…”

Section: Introductionmentioning

confidence: 99%

Performance of the new seedless grape ‘BRS Isis' grown in subtropical area

et al. 2017

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'BRS Isis' is a new colored seedless table grape tolerant to downy mildew, the main vine disease in subtropical humid areas. This new seedless cultivar is an interspecific hybrid from the crossing of CNPUV 681-29 [Arkansas 1976 X CNPUV 147-3 ('Niagara Branca' x 'Venus')] x 'BRS Linda', and was recently released by Embrapa Grape and Wine, Brazil. The performance of 'BRS Isis' seedless grape was evaluated in an experimental vineyard in 2016 located in a subtropical area at Marialva city, state of Parana, Brazil. The vines were grafted onto 'IAC 766 Campinas' rootstock and trained in an overhead trellising system spaced at 2× 5 m. Vines were cane-pruning in late winter of July 2016, and for assessments, 20 representative vines were selected in the area. As 'BRS Isis' is a very fruitful grape, presenting 4 bunches per shoot, a load adjustment was performed after fruitset removing 50% of bunches per shoot, leaving 2 bunches per shoot, equivalent to a density of 10 bunches.m −2. The duration in days of the main phenological stages from pruning to harvest, and the physicochemical and yield characteristics of 'BRS Isis' seedless grape were subjected to evaluation. It was determined that the cycle is 144 days. The means of berry and bunch weight was 6.7 ± 1.0 g and 500.0 ± 0.04 g, respectively, and the color index of berries (CIRG) was 4.3 ± 1.3. The means of total soluble solids (TSS), titratable acidity (TA) and maturity index (TSS/TA) observed were 14.2 ± 0.3 • Brix, 0.6 ± 0.04% of tartaric acid and 24.1 ± 1.5, respectively, while the yield was 49.0 ± 5.7 tons.ha −1. The yield observed is considered high to keep a sustainable crop over time, thus, in order to obtain grapes of 'BRS Isis' with regular yield, and possibly, with a higher content of soluble solids, it is desirable to keep only 1 bunch per shoot (5 bunches.m −2) after fruitset.

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Efeito de reguladores de crescimento em uva apirênica, cv. BRS Clara

Cited by 12 publications

References 3 publications

Inheritance of seedlessness and the molecular characterization of the INO gene in Annonaceae

Inheritance of seedlessness and the molecular characterization of the INO gene in Annonaceae

Characterization of maturity and quality of Brazilian apirenic grapes in the São Francisco river Valley

Performance of the new seedless grape ‘BRS Isis' grown in subtropical area

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