Characterization of trees, fruits and genetic diversity in natural populations of mangaba

Abstract

The state of Sergipe is the largest mangaba producer, which is a fruit native to Brazil, and has cultural, social and economic importance in its area of occurrence. It is an endangered species due to human actions, and despite its economic potential, there are still no commercial plantations. The study was carried out in order to characterize trees, fruits and the genetic diversity of natural populations of mangaba in Sergipe, Brazil. Fruits from Abaís Beach/Estância (AB) presented, on average, twice the vitamin C content (414.81 mg of vit. C/100g), when compared with the others. The use of ISSR primers was efficient in estimating the genetic similarity of populations. The primers clustered the populations of mangaba according to their origin, which indicates the genetic diversity of mangaba and their isolation. The results can be used to guide the selection of individuals in situ and ex situ conservation actions of these genetic resources. Index terms:Hancornia speciosa Gomes; postharvest; molecular markers; variability. RESUMOO Estado de Sergipe é o maior produtor de mangaba, fruta nativa do Brasil e de importância cultural, social e econômica nas áreas de ocorrência. Encontra-se em risco de extinção devido a ações antrópicas, e apesar de seu potencial econômico, ainda não existem plantios comerciais da espécie. O trabalho foi desenvolvido com o objetivo de caracterizar árvores, frutos e a diversidade genética de populações naturais de mangabeira em Sergipe, Brasil. Frutos oriundos de Abaís/Estância (AB) apresentam em média o dobro do conteúdo de vitamina C (414.81 mg de vit. C/100g) dos demais. O uso de primers ISSR foi eficiente para estimar a similaridade genética das populações, sendo agrupados de acordo com sua origem, o que indica a diversidade genética destas mangabeiras, e seu isolamento. Os resultados poderão ser usados para direcionar a seleção de indivíduos em ações de conservação desses recursos genéticos, in situ e ex situ.

Research Article Genetic diversity of the mangaba GeneBank using microsatellites

“…Conversely, Soares et al (2016) found 23% divergence within accessions and 77% between them in natural populations in Sergipe. The pattern observed in our study is what is expected for allogamous arboreal species (Silva et al, 2017b). The Bayesian approach implemented in the Structure software was used to estimate the BGMangaba structure.…”

Antioxidant activity and physico-chemical analysis of Campomanesia rufa (O.Berg) Nied. fruits

“…The vitamin C content of C. rufa was higher than that of several traditional fruits such as Citrus aurantium L. (125.76 mg 100 g -1 ) (Silva Júnior et al, 2010) and seven cultivars of strawberries that ranged from 65.0 to 112.0 mg 100 g -1 (Table 3) (Da Silva Pinto;Laojolo;Genovese, 2008). However, the vitamin C content was similar to that of the Hancornia speciose fruit (260 mg 100 g -1 ) (Silva et al, 2017).…”

Genetic diversity in the natural population of threatened fruit- bearing plant species Monotheca buxifolia (Falc.) A.D.

“…Although many latest studies have proven that diversity in farmland and protected areas has deteriorated (Silva et al, 2017;Noor et al, 2018). The conservation of the species both ex situ and in situ necessitates understanding of the target and genetic diversity of the species; therefore, a knowledge of this nature is required in the study of the remaining M. buxifolias' populations and also it is crucial to fight the increasing reduction of the areas of natural occurrence, also the genetics of a species is an essential factor in the survival of populations in variable environments (Silva et al, 2017), it is also considered as a key component of biodiversity (Silva et al, 2017;Khan et al, 2020). Awareness of how genetic variations are divided among populations may therefore have important consequences, not only in evolutionary biology and ecology, but also in conservation biology of M. buxifolia growing Malakand Division, Pakistan.…”