Gene flow among Hancornia speciosa (Apocynaceae) varieties and hybrid fitness

Collevatti, Rosane Garcia; Olivatti, Ana Maria; Telles, Mariana P. C.; Chaves, Lázaro José

doi:10.1007/s11295-016-1031-x

Cited by 23 publications

(24 citation statements)

References 35 publications

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“…Controlled pollination experiment demonstrated that the species is self-incompatible (Darrault and Schlidwein 2005) that was corroborated by pollen dispersal study (Collevatti et al 2016). Some works have shown the existence of genetic variability among and/or within botanical varieties based on quantitative traits (Ganga et al 2009), allozymes (Martins et al 2012), DNA molecular markers (Moura et al 2005, Silva et al 2011, Rodrigues et al 2015, Collevatti et al 2016, Costa et al 2017) and chemical components (Flores et al 2018).…”

Section: Introductionmentioning

confidence: 86%

“…flow carried out in the complete collection showed a reproductive system with 100% outcrossing rate and no barriers to crosses between varieties (Collevatti et al 2016).…”

Section: Methodsmentioning

confidence: 96%

“…The germplasm collection of H. speciosa at the Federal University of Goiás (UFG) was evaluated for developmental traits in the nursery and juvenile phase (Ganga et al 2009) and by microsatellite markers (Collevatti et al 2016). The objective of this work was to study the genetic variability of agronomic traits of plants and fruits in their adult phase and the potential for selection of the UFG germplasm collection of H. speciosa, in addition to a correlation study on growth traits of the initial and juvenile phases.…”

Section: Introductionmentioning

confidence: 99%

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Agronomic evaluation of a Hancornia speciosa Gomes germplasm collection from the Brazilian Cerrado

Almeida

Chaves

Vieira

et al. 2019

Crop Breed. Appl. Biotechnol.

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Hancornia speciosa Gomes is a fruit tree native to Brazil with potential for use in cropping systems. The objective of this study was to characterize accessions of a germplasm collection by evaluating agronomic traits. The collection was planted in 2005, in an experiment with 57 progenies and four replications, totaling 192 individual accessions from 29 natural subpopulations of four botanical varieties, from the Brazilian Cerrado. The components of variance were estimated using the restricted maximum likelihood (REML) procedure. Heritability coefficients show the potential of the collection as base population for selection programs. The trait number of fruits per plant presented the highest estimated selection gain. The accessions of H. speciosa var. cuyabensis are the ones with the greatest potential for selection based on plant size and productivity. Progenies with greater development in the juvenile phase are potentially more productive in the adult phase, allowing the early selection of superior genotypes. This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Section: Introductionmentioning

confidence: 86%

“…flow carried out in the complete collection showed a reproductive system with 100% outcrossing rate and no barriers to crosses between varieties (Collevatti et al 2016).…”

Section: Methodsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Agronomic evaluation of a Hancornia speciosa Gomes germplasm collection from the Brazilian Cerrado

Almeida

Chaves

Vieira

et al. 2019

Crop Breed. Appl. Biotechnol.

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“…5 The collection has now 274 adult individuals regarding four varieties of H. speciosa: var. pubescens (65 individuals), var.…”

Section: Plant Materialsmentioning

confidence: 99%

“…2,3 The species presents variation in morphological leaf traits according to geographical origin and varieties, 4 although with sympatric varieties and individuals with intermediate phenotypes. 5 H. speciosa var. speciosa (Gomes) has small leaves with long petiole and occurs from the Northeast towards the Middle-West and North Brazil.…”

Section: Introductionmentioning

confidence: 99%

HR-MAS NMR Allied to Chemometric on Hancornia speciosa Varieties Differentiation

Flores¹,

Silva²,

Furquim³

et al. 2017

J. Braz. Chem. Soc.

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This work describes the potential of chemometric analyses applied to 1 H high-resolution magic angle spinning nuclear magnetic resonance ( 1 H HR-MAS NMR) data for the chemotaxonomic investigation of Hancornia speciosa (Apocynaceae) varieties. This plant, popularly known as mangaba, has a complex morphological differentiation and thus chemical analyses can be used for their taxonomic classification. In comparison to traditional techniques, 1 H HR-MAS NMR allied with chemometrics provided a simple and low cost method for chemotaxonomy. Leaves of four varieties of H. speciosa from a common garden experiment was studied and demonstrated that H. speciosa var. speciosa differs from others due to its specific metabolic profile, and var. pubescens was discriminated based on its high phenolic compound content. The distinction between the latter variety and gardineri is important once it allows for the selection of samples with greater commercial value, once they produce the largest and heaviest fruits.

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Can seed exchange networks explain the morphological and genetic diversity in perennial crop species? The case of the tropical fruit tree Dacryodes edulis in rural and urban Cameroon

Rimlinger,

Duminil,

Avana‐Tientcheu

et al. 2023

Plants People Planet

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Societal Impact StatementCrop seed exchange networks, shaped by social dynamics, strongly influence the organization and breadth of plant diversity in human‐managed environments. Integrating an urban and market perspective, this study explores the diversity dynamics of a socio‐economically important Central African fruit tree species, the African plum tree. Tree owners in urban, peri‐urban and rural sites use seeds from different origins as their main propagation material, leading to locational variations in genetic diversity and structure. This analysis contributes toward building a framework to inform the research agenda of cultivated African fruit trees, by highlighting the important role of urban centers in safeguarding crop genetic resources.Summary Biocultural factors constrain the dynamics of crop species diversity. Here, we considered different aspects of the social, spatial and temporal dynamics of morphological and genetic diversity in a multi‐purpose perennial crop, the African plum tree (Dacryodes edulis). We assessed (i) how seed exchange networks were organized along urbanization gradients, and how they influenced the distribution of species diversity; (ii) the temporal dynamic of seed exchange network by characterizing species genetic diversity through time. To do so, the study was carried out in Cameroon, where we focused on three urbanization gradients, covering urban, peri‐urban and rural areas, corresponding to three different ethnic groups (Bamileke, Bassa, Beti). We combined interviews with tree owners and nuclear microsatellite‐based genetic analyses. Tree owners from urban and peri‐urban sites primarily used distant seed sources, acquired in the market or from their village of origin, as propagation material, whereas tree owners in rural sites relied primarily on village‐level seeds. In turn, genetic diversity was not evenly distributed, with rural sites exhibiting their own genetic clusters. On the contrary, the genetic diversity of urban sites was enhanced by extensive human‐mediated seed flows. Looking at trees from different age classes, we found that genetic diversity was stable over time. Overall, this first attempt to combine different levels of diversity for African plum trees in commercially connected areas expands the scope for in situ intraspecific conservation by highlighting the contribution of urbanized areas.

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Gene flow among Hancornia speciosa (Apocynaceae) varieties and hybrid fitness

Cited by 23 publications

References 35 publications

Agronomic evaluation of a Hancornia speciosa Gomes germplasm collection from the Brazilian Cerrado

Agronomic evaluation of a Hancornia speciosa Gomes germplasm collection from the Brazilian Cerrado

HR-MAS NMR Allied to Chemometric on Hancornia speciosa Varieties Differentiation

Can seed exchange networks explain the morphological and genetic diversity in perennial crop species? The case of the tropical fruit tree Dacryodes edulis in rural and urban Cameroon

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