Fruit and seed characterization of wild populations of a traditional Andean crop: Solanum betaceum Cav. (Solanaceae) in the Argentinian Yungas

Lamas, Carola Yanina; Urtasun, María Manuela; Giamminola, Eugenia Mabel; Pratta, Guillermo Raúl; Caruso, Graciela; Morandini, Marcelo; Viana, Marta Leonor de

doi:10.1007/s10722-021-01223-3

Cited by 3 publications

(3 citation statements)

References 39 publications

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“…In both species, fruit mass, mass of seeds per fruit, and fruit roundness index explained most of the variability and had the highest impact on differentiation of V. quercifolia populations. Additionally, we found signi cant correlations among size-related traits of fruits and seeds, which are related in many taxa (Khadivi et al 2020;Lamas et al 2022) and can be used in selection programs.…”

Section: Discussionmentioning

confidence: 79%

Germplasm variation among wild populations of the Argentinean highland papayas (Vasconcellea quercifolia A.St.-Hil. and V. glandulosa A.DC.): implications for conservation

Urtasun

Lamas

Cornejo

et al. 2023

Genet Resour Crop Evol

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Species of Vasconcellea are promising for the agricultural industry as a source of genes for papaya improvement because many of them have edible fruits with favorable organoleptic properties. Vasconcellea quercifolia and V. glandulosa are the southernmost species and have recently been categorized as species of high conservation priority in Argentina. Although seeds of both species can be stored in genebanks, no speci c studies have been conducted on their germplasm variation, which is a key aspect to designing a conservation strategy. In this work, we assess morphological, physiological, and biochemical variability at the species and population levels and propose a conservation strategy. In four wild populations of each species located at different elevations in northwest Argentina, vegetative and reproductive material was collected from 110 individuals of V. glandulosa and 70 of V. quercifolia. Twenty-seven morphological, two biochemical and four physiological descriptors were determined to characterize each species. Then, variance decomposition, differences between populations (with ANOVA) and a principal component analysis were performed using morphological quantitative fruit and seed data, to assess variability between populations. Although both species showed a wide range of phenotypic variability, it was higher in V. quercifolia than in V. glandulosa and within each population than between them. Leaves, female owers and physiological descriptors were the most variable, while seed morphological descriptors were the least variable. Variance analysis revealed differences between populations in the majority of morphological descriptors. We recommend collecting germplasm from the entire natural distribution range of each species and from many individuals in each population.

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Section: Discussionmentioning

confidence: 79%

Germplasm variation among wild populations of the Argentinean highland papayas (Vasconcellea quercifolia A.St.-Hil. and V. glandulosa A.DC.): implications for conservation

Urtasun

Lamas

Cornejo

et al. 2023

Genet Resour Crop Evol

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“…The results obtained here show there was a low association between geographic and morphological distance. The Tocher optimization method (Table 2), based on geographic distance, grouped the accessions of group II, mainly because they are closer accessions and present greater similarity (Lamas et al, 2022). Therefore, it is expected that other factors may be determining the distribution of genetic variability of the observed morphological characteristics.…”

Section: Discussionmentioning

confidence: 99%

Characterization and genetic diversity in Paspalum notatum Flügge accessions: Morphological and geographical distance

Steiner¹,

Weiler²,

Brunes³

et al. 2022

Revista Brasileira De Zootecnia

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The objective of this work was to describe morphology and grouping of Paspalum notatum accessions, based on multicategorical data which discards the redundant variables for quantification of genetic diversity. We also tested the hypothesis that geographical distance was correlated with morphological divergence. In our study, multivariate analyzes successfully demonstrated the geographic and morphological variability of the P. notatum accessions characterized. Many of these evaluated accessions can be included in future genetic improvement programs. Based on two methodologies for discarding variables, it was possible to identify the potentially important morphological characteristics from genetic diversity studies and characterize new accessions aimed at improving forage and seed production. The methodologies used to discard variables are biometric tools that can be used successfully in future plant breeding programs, especially when a large number of traits and accessions are being evaluated. Although significant, geographic distance had a low association with morphological traits. This indicated the need to use other characteristics, such as forage and seed yield, in addition to molecular analysis. Our analyzes showed genetic variability in P. notatum for all the characteristics studied.

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“…(Solanaceae) is native to southern Bolivia and northeastern Argentina, where it is found at altitudes between 1,100 and 2,300 meters above sea level (masl) (Bohs, 1994). During colonial times, the Spanish and Portuguese took it to various countries, and now, can be found plantations in various parts of the world (Lamas et al, 2022). Due to this distribution, it is known by various names such as mountain tomato, tamarillo, chilto, eggplant, and the main producing and exporting countries of this fruit are New Zealand, Portugal, Colombia, Ecuador, and Peru (Prohens et al, 1996;Ramírez and Kallarackal, 2019).…”

Section: Introductionmentioning

confidence: 99%

PLANT PARASITIC NEMATODES ASSOCIATED WITH TREE TOMATO (Solanum betaceum Cav.) IN TLACOLULAN AND XALAPA, VERACRUZ, MEXICO

Carrión,

Velasco-Rodríguez,

López-Lima

2023

Trop Subtrop Agroecosyst

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Background: Tree tomato (Solanum betaceum Cav.) is a plant introduced to Mexico since colonial times, currently it is found as a crop in backyard orchards in the central mountainous region of Veracruz. Due to its nutraceutical properties, its cultivation is gaining importance worldwide and spreading. However, since there are no established formal crops in Mexico, there are no studies on the pests that may affect the development of this plant. Objective: To identify the plant-parasitic nematodes associated with the rhizospheric soil and root, as well as the determine their abundance in tree tomato plants, located in the Tlacolulan and Xalapa municipalities, in Veracruz state. Methodology: The nematodes were extracted from the soil and roots, fixed, clarified, mounted for identification at the genus level, and quantified. Results: 704 specimens belonging to 14 genera were identified: Criconema, Criconemoides, Filenchus, Fraglenchus, Gracilacus, Helicotylenchus, Malenchus, Meloidogyne, Ogma, Paratylenchus, Pratylenchus, Pratylenchoides, Sakia, and Thada. The most abundant nematodes were Helicotylenchus and Meloidogyne. Implications: Since in five samples we found Meloidogyne individuals, a diagnosis must be made prior to the establishment of new crops to avoid the increase in populations that can affect the performance of the plants. Conclusion: Criconema, Filenchus, Fraglenchus, Malenchus, Ogma, Pratylenchoides, Sakia, and Thada are recorded for the first time associated with this plant.

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Fruit and seed characterization of wild populations of a traditional Andean crop: Solanum betaceum Cav. (Solanaceae) in the Argentinian Yungas

Cited by 3 publications

References 39 publications

Germplasm variation among wild populations of the Argentinean highland papayas (Vasconcellea quercifolia A.St.-Hil. and V. glandulosa A.DC.): implications for conservation

Germplasm variation among wild populations of the Argentinean highland papayas (Vasconcellea quercifolia A.St.-Hil. and V. glandulosa A.DC.): implications for conservation

Characterization and genetic diversity in Paspalum notatum Flügge accessions: Morphological and geographical distance

PLANT PARASITIC NEMATODES ASSOCIATED WITH TREE TOMATO (Solanum betaceum Cav.) IN TLACOLULAN AND XALAPA, VERACRUZ, MEXICO

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