Meiotic Behavior and Pollen Viability of Spondias mombin L.: Native Fruit Species of the Amazon

Zortéa, Kelli Évelin Müller; Rossi, Ana Aparecida Bandini; Bispo, Rosimeire Barboza; Rocha, Vinícius Delgado da; Hoogerheide, E. S. S.

doi:10.1590/2179-8087.037518

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…S. mombin (2n = 2x = 30) reproduces by cross-pollination performed mainly by bees, and it also presents vegetative propagation. Furthermore, it presents protandrous dichogamy and a high value of the pollen/ovule ratio (Ramos 2009;Zortéa et al 2019). The species is classi ed as andromonoecious (Ramos 2009), having staminate and hermaphrodite owers arranged in in orescences of the terminal pyramidal panicles type (Coradin et al 2022).…”

Section: Introductionmentioning

confidence: 99%

“…(2009) with four yellow mombin populations from Pernambuco assessed with nine isoenzyme loci, the values for genetic diversity ranged from 0.530 to 0.574. Using SSR markers,Zortéa et al (2019) found values ranging from 0.199 to 0.486, with a mean of He = 0.335, for populations in Mato Grosso, Midwest region. A study with three populations from the north of the State of Mato Grosso based on 14 ISSR primers identi ed genetic diversity values ranging from 0.20 to 0.24(Silva et al 2017b).…”

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Genetic divergence between Brazilian Northern and Northeastern populations of Spondias mombin revealed with SNP markers

Silva

Garcia

Carvalho

et al. 2023

Preprint

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Spondias mombin L. (family Anacardiaceae) is an arboreal and allogamous fruit tree native from southern Mexico to southeastern Brazil, with great potential for economic exploitation. This study aimed to evaluate the structure and genomic diversity of yellow mombin in Brazil’s North and Northeast regions using SNP (Single Nucleotide Polymorphisms) markers. Significant genetic divergence was observed in the clustering analysis and dendrogram construction between the North and Northeast regions. The Mantel test identified a high positive and significant correlation (r = 0.78; p < 0.001), indicating isolation by distance. In the genetic diversity analysis, populations from the North Region presented a greater number of alleles (2.722, on average) and genetic diversity (HE = 0.1860) regarding the populations from the Northeast Region (2.509 alleles and HE = 0.1059). Although presenting greater genetic diversity, the North Region had a positive inbreeding coefficient (f) in three of the four studied populations, ranging from 0.0855 to 0.2421. The results obtained contribute to the understanding of the distribution of genetic variation and the conservation status of the yellow mombin populations in the two regions; they could also be used as a subsidy for developing conservation strategies and the genetic improvement of this species.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Genetic divergence between Brazilian Northern and Northeastern populations of Spondias mombin revealed with SNP markers

Silva

Garcia

Carvalho

et al. 2023

Preprint

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Viability and storage of Myrceugenia euosma (O. Berg) D. Legrand and Siphoneugena reitzii D. Legrand (Myrtaceae) pollen

Corrêa,

Sá,

Oliveira

et al. 2024

Rev. Ciênc. Agrovet.

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This study evaluated aspects of the pollen viability of the species Myrceugenia euosma (O. Berg) D. Legrand and Siphoneugena reitzii D. Legrand (Myrtaceae), both native trees with ornamental, medicinal and industrial potential. The study used different concentrations of sucrose to determine pollen viability in vitro and through colorimetric tests with specific dyes (Lugol, carmine acetic, and tetrazolium chloride – TTC – 0.1 and 0.05%). The two species also had their pollen stored for 30 and 90 days in freezers, refrigerators, and natural environments to check the best method for preserving their viability. The results showed that the highest average germination of M. euosma pollen was in a culture medium containing 30% sucrose. After 30 and 90 days of storage, pollen viability was significantly reduced, having preserved part of its potential only in the freezer. The pollen of S. reitzii had a higher average germination rate in a medium with 20% sucrose, but also showed a reduction in viability after 30 and 90 days of storage. The colorimetric tests showed that the pollen of both species responded to the dyes. However, the viability of Lugol and carmine acetic was considered to be overestimated in relation to the in vitro germination tests. Tetrazolium at 0.1% proved to be an alternative for checking the viability of S. reitzii pollen. It can be concluded that different concentrations of sucrose affect germination, and that storing pollen at a low temperature can preserve some of its viability in the short term.

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Meiotic Behavior and Pollen Viability of Spondias mombin L.: Native Fruit Species of the Amazon

Cited by 2 publications

References 27 publications

Genetic divergence between Brazilian Northern and Northeastern populations of Spondias mombin revealed with SNP markers

Genetic divergence between Brazilian Northern and Northeastern populations of Spondias mombin revealed with SNP markers

Viability and storage of Myrceugenia euosma (O. Berg) D. Legrand and Siphoneugena reitzii D. Legrand (Myrtaceae) pollen

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