Genetic diversity of potential mother trees of Myracrodruon urundeuva by ISSR markers

Lopes, J.; Costa, Márcia Regina Jantsch da; Arriel, Daniele Aparecida Alvarenga

doi:10.34062/afs.v7i2.9424

Cited by 5 publications

(5 citation statements)

References 12 publications

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“…The Shannon index ranges from 0 to 1, with higher values indicating greater genetic diversity within the population (Shannon & Weaver, 1949). Although there are no specific studies on the genetic diversity of Z. tuberculosa using ISSR markers, comparing with similar methodologies applied to other native forest species, the observed genetic diversity in this population can be considered moderate to high (Borges, Santos, Maia, Lima, & Valente, 2016;Lopes, Costa, & Arriel, 2020). Similar values were found in Handroanthus impetiginosus, another species from the Bignoniaceae family, where ISSR markers yielded the same genetic diversity parameters (H* = 0.35 and I* = 0.52) (Pimenta, Felix, Araújo, Fajardo, & Pacheco, 2022).…”

Section: Genetic Diversitysupporting

confidence: 59%

Genetic characterization of Zeyheria tuberculosa progenies and evaluation for formation of a seed orchard

Assunção,

Silva Júnior,

Almeida

et al. 2024

Acta Sci. Agron.

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Zeyheria tuberculosa, a native species of Brazil known for its significant potential in silviculture and genetic improvement, holds prominence among various species. In this study, our objective was to assess the diversity, genetic structure, and feasibility of establishing a seedling seed orchard (SSO) for this species. A total of 71 progenies were collected from different locations and were used in our experiment in Ijaci - MG. We genotyped 92 individuals (nine families with eight individuals, two families with seven individuals, and one family with six individuals), specifically selecting those with the highest predicted genetic values, using ten ISSR primers. The molecular markers employed effectively detected polymorphism (PIC = 0.44). The population exhibited moderate to high genetic diversity, as evidenced by observed (AO = 2.00) and effective alleles (AE = 1.61), Nei's diversity index (H* = 0.35), and Shannon's diversity index (I* = 0.52). Molecular variance analysis indicated significant genetic differentiation between the progenies (Φst = 0.19), yet the majority of the variation was observed within them (80.1%). Employing a Bayesian approach, we identified the formation of two distinct genetic groups, further confirming the non-genetic structure of the population. These findings affirm the potential of the Z. tuberculosa progenies to contribute to the establishment of a seedling seed orchard, supporting genetic improvement strategies and the conservation of the species' genetic diversity.

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Section: Genetic Diversitysupporting

confidence: 59%

Genetic characterization of Zeyheria tuberculosa progenies and evaluation for formation of a seed orchard

Assunção,

Silva Júnior,

Almeida

et al. 2024

Acta Sci. Agron.

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“…In comparison with other Brazilian forest species, Acol and Aper show higher genetic diversity than both legume Mimosa caesalpiniifolia (h = 0.220 [23]) and the expected by the Fabaceae family (h = 0.18 [40]), and lower than Copernicia prunifera (h = 0.327 [25]), and legume Dalbergia nigra (h = 0.36) [27]. The Aper diversity levels were similar to those of Metrodorea nigra, studied in the same region (h = 0.25 [28]), Hancornia speciosa (h = 0.26 [24]), and Myracrodruon urundeuva (h = 0.27 [26]).…”

Section: Discussionmentioning

confidence: 49%

“…In Brazilian tree species, ISSR molecular markers have been widely used in genetic studies on Sansão-do-Campo (Mimosa caesalpiniifolia Benth., Fabaceae [23]), mangaba (Hancornia speciosa Gomes, Apocynaceae) [24]), carnauba (Copernicia prunifera (Mill.) H.E.Moore, Arecaceae [25]), aroeira (Myracrodruon urundeuva M.Allemão, Anacardiaceae [26]), jacarandá-da-bahia (Dalbergia nigra (Vell.) Allemão ex Benth., Fabaceae [27]), and Carrapateira (Metrodorea nigra A. St.…”

Section: Introductionmentioning

confidence: 99%

Molecular Discrimination for Two Anadenanthera Species of Seasonally Dry Tropical Forest Remnants in Brazil

Bonifácio-Anacleto,

Moraes Filho,

Borges

et al. 2024

Taxonomy

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Anadenanthera colubrina (Acol) and Anadenanthera peregrina (Aper) (Fabaceae) are two species popularly known as “angicos” that occur in seasonally dry tropical forest (SDTR) remnants in Brazil. Since many of the morphological characteristics of Anadenanthera species are superimposed and species-specific characteristics are difficult to observe, their identification is complex. Therefore, in this research, a set of ISSR (Inter-Simple Sequence Repeat Polymorphic DNA) molecular markers was standardized, aiming to characterize A. colubrina and A. peregrina species and study the genetic diversity of three populations of each species located within a fragmented landscape in São Paulo State, southeastern Brazil. Seven ISSR markers (UBC 2, 820, 851, 858, 864, 866, and 886) that show polymorphism for both species were used. The Bayesian cluster, PCoA and dendrogram analysis show that the total sample divides into two groups corresponding to each species. Also, a genetic divergence (Gst = 0.143) and a high number of migrants per generation (Nm = 3.0) were detected between them. The Acol populations showed significantly higher values for mean genetic diversity (h = 0.30) than Aper (h = 0.25) (p < 0.05). The ISSR marker UBC2250bp showed species-specific electrophoretic fingerprints for both species. The molecular tools generated herein support the conservation of Anadenanthera sp. and the restoration of vegetation where the species naturally occurs.

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“…The results obtained from the Nei's diversity index (He = 0.35) and the Shannon index (I = 0.52) allowed the identifi cation of an intermediate degree of intrapopulation genetic diversity when compared to the results obtained in studies with ISSR for other forest species (Rajasekharan et al, 2017;Araújo et al, 2020;Lopes et al, 2020 ).…”

Section: Discussionmentioning

confidence: 96%

SELECTION OF Handroanthus impetiginosus MOTHER TREES TO SUPPORT SEED COLLECTION AREAS

et al. 2023

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Handroanthus impetiginosus is a Brazilian native tree threatened by illegal logging that needs conservation strategies. Due to the need to obtain seeds of high genetic and physiological quality, this study aimed to select mother trees, aiming at the installation of Seed Collection Areas of H. impetiginosus. Therefore, the genetic diversity and physiological quality of seeds from 63 individuals of a natural population of H. impetiginosus in Rio Grande do Norte, Brazil, were evaluated. The molecular markers revealed that the studied population has high intrapopulation genetic diversity (Nei’s genetic diversity = 0.35; and Shannon index = 0.52). Subsequently, germination and seed vigor tests evaluated the physiological quality of seeds from 63 trees. Of this total, 45 individuals produced seeds of high and intermediate physiological quality. Therefore, individuals with a Nei’s genetic distance < 0.72 and germination greater than 50% can be selected as mother trees, and the population has the potential to propose a Seed Collection Area.

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Genetic diversity of potential mother trees of Myracrodruon urundeuva by ISSR markers

Cited by 5 publications

References 12 publications

Genetic characterization of Zeyheria tuberculosa progenies and evaluation for formation of a seed orchard

Genetic characterization of Zeyheria tuberculosa progenies and evaluation for formation of a seed orchard

Molecular Discrimination for Two Anadenanthera Species of Seasonally Dry Tropical Forest Remnants in Brazil

SELECTION OF Handroanthus impetiginosus MOTHER TREES TO SUPPORT SEED COLLECTION AREAS

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