Crossing and diagnostic methods of cubiu hybrid plants based on genetic markers

Pizzinato, J.R.; Schuelter, Adílson Ricken; Júnior, A.T. Amaral; Rocha, Arturo Castro; Siva, J.M.; Volkweis, Cátia Raquel; Freitas, Michael; Ricardo, F.; Schwantes, Daniel

doi:10.12702/1984-7033.v08n04a05

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…sessiliflorum, however, led Storti (1988) to consider cubiu an allogamous plant. In recent studies, Luz et al (2008) and Pizzinato et al (2008) concluded that cubiu is an allogamous plant, since plants grown in a greenhouse and covered with organza, preventing the action of pollinators, produced no fruits with seeds. However, there is evidence that stigmata are receptive and pollen grains germinate when the flowers are closed, indicating the possibility of selfing (Pizzinato et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…In this respect, the lack of synchronous flowering of these varieties and the occurrence of panmixia with a low production of fertile seeds (Pizzinato et al, 2008) indicate the need for research to investigate the possibility of seedling production for in vitro cultivation and to determine the most appropriate means of cultivation of the species.…”

Section: Introductionmentioning

confidence: 99%

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In vitro regeneration of cocona (Solanum sessiliflorum, Solanaceae) cultivars for commercial production

Schuelter¹,

Grunvald²,

Amaral³

et al. 2009

Genet. Mol. Res.

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ABSTRACT. Cocona (Solanum sessiliflorum Dunal) is a solanaceous shrub native to the Amazon region that produces an edible fruit. This species has numerous advantages, particularly a high nutritional value and productivity. However, due to irregular germination and rapid loss of seed viability, there are few plantations for production on a large scale. Development of alternative propagation strategies is essential for the production of homogeneous seedlings of genotypes with superior agronomic performance. We developed techniques for in vitro regeneration of the cocona varieties Santa Luzia and Thaís for large-scale production of healthy plantlets. Twenty days after seeding, seedling segments germinated in vitro were used as explant sources. Three successive experiments were performed: one to test the effect of the explant source and combinations of two growth regulators, auxin (indole acetic acid, IAA) and kinetin (KIN), on the morphogenetic response; another to investigate the effect of the combination of growth regulators on the morphogenetic response of hypocotyl segments, and another to evaluate how sucrose concentration affects the development of adventitious shoots. The best shoot induction was obtained using hypocotyl segments and stem apices, while rhizogenesis was greatest in leaves with a petiole. The number of adventitious shoots per explant on hypocotyl segments increased with 10 and 20 mg/L KIN, combined with 0.02 mg/L IAA in the variety Santa Luzia. Sucrose combined with these growth regulator levels increased the average number of calli; these were optimally produced when 45 g/L sucrose and 0.01 mg/L IAA + 20 mg/L KIN were applied. Only sucrose concentration influenced shoot proliferation in the two S. sessiliflorum varieties, with a maximum at 17.5 g/L.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In vitro regeneration of cocona (Solanum sessiliflorum, Solanaceae) cultivars for commercial production

Schuelter¹,

Grunvald²,

Amaral³

et al. 2009

Genet. Mol. Res.

Self Cite

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“…Cocona researches have focused on assessing genotypes [3,4], outcrossing rate studies [3,5,6], chemical characterization for food processing industry [7,8]. However, there is paucity of regarding its physiology; especially on what concern hydric tolerance.…”

Section: Introductionmentioning

confidence: 99%

Hydric-stress Tolerance in Cocona (Solanum sessiliflorum Dunal)

Lima

Ticona-Benavente

Filho

2019

JEAI

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Aims:The present work aims to assess hydric stress tolerance in cocona (Solanum sessiliflorum). Study Design: Four cocona genotypes were planted in completely randomized blocks design with three replicates. Each replicate was irrigated with different water volumes, tantamount to 50, 100 and 150% of evapotranspiration (ET) respectively. Methodology: The fruits were harvested each 15 days by three months. The assessed characters were plant stand, stem diameter, plant height, fruit yield, number of fruits per plant; fruit mass, length, diameter and length/diameter ratio. Results: Irrigation treatments, both 50 and 150% ET, reduced height plant, fruit mass and length. Other characters were no affected by the hydric stress. Conclusion: Cocona is tolerant to both hydric stress, being the major hydric stress effect fruit size and mass decreasing. Other studies must to be performed to determinate the hydric stress threshold which lead to decrease fruit yield and dead plant.

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Cocona (Solanum sessiliflorum Dunal) reproductive physiology: a review

Ramírez¹

2019

Genet Resour Crop Evol

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Crossing and diagnostic methods of cubiu hybrid plants based on genetic markers

Abstract: 283Crossing and diagnostic methods of cubiu hybrid plants based on genetic markers Crop Breeding and Applied Biotechnology 8: [283][284][285][286][287][288][289][290] 2008

Cited by 4 publications

References 11 publications

In vitro regeneration of cocona (Solanum sessiliflorum, Solanaceae) cultivars for commercial production

In vitro regeneration of cocona (Solanum sessiliflorum, Solanaceae) cultivars for commercial production

Hydric-stress Tolerance in Cocona (Solanum sessiliflorum Dunal)

Cocona (Solanum sessiliflorum Dunal) reproductive physiology: a review

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