Patterns of genetic diversity and structure of a threatened palm species (Euterpe edulis Arecaceae) from the Brazilian Atlantic Forest

Pereira, Aléxia Gonçalves; Ferreira, Márcia Flores da Silva; Silveira, Thamyres Cardoso da; Soler-Guilhen, José Henrique; Canal, Guilherme Bravim; Alves, Luziane Brandão; Almeida, Francine Alves Nogueira de; Gaiotto, Fernanda Amato; Ferreira, Adésio

doi:10.1038/s41437-022-00549-7

Cited by 6 publications

(10 citation statements)

References 57 publications

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“…Euterpe edulis, a palm tree native to the Atlantic Forest, is distributed along the entire length of this biome and in the gallery forests of the Brazilian cerrado [1][2][3]. It belongs to the genus Euterpe, which has become popular in recent years through ac ¸aı ´, processed pulp from the fruits of species of this genus [4].…”

Section: Introductionmentioning

confidence: 99%

Single and multi-trait genomic prediction for agronomic traits in Euterpe edulis

et al. 2023

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Popularly known as juçaizeiro, Euterpe edulis has been gaining prominence in the fruit growing sector and has demanded the development of superior genetic materials. Since it is a native species and still little studied, the application of more sophisticated techniques can result in higher gains with less time. Until now, there are no studies that apply genomic prediction for this crop, especially in multi-trait analysis. In this sense, this study aimed to apply new methods and breeding techniques for the juçaizeiro, to optimize this breeding program through the application of genomic prediction. This data consisted of 275 juçaizeiro genotypes from a population of Rio Novo do Sul-ES, Brazil. The genomic prediction was performed using the multi-trait (G-BLUP MT) and single-trait (G-BLUP ST) models and the selection of superior genotypes was based on a selection index. Similar results for predictive ability were observed for both models. However, the G-BLUP ST model provided greater selection gains when compared to the G-BLUP MT. For this reason, the genomic estimated breeding values (GEBVs) from the G-BLUP ST, were used to select the six superior genotypes (UFES.A.RN.390, UFES.A.RN.386, UFES.A.RN.080, UFES.A.RN.383, UFES.S.RN.098, and UFES.S.RN.093). This was intended to provide superior genetic materials for the development of seedlings and implantation of productive orchards, which will meet the demands of the productive, industrial and consumer market.

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Section: Introductionmentioning

confidence: 99%

Single and multi-trait genomic prediction for agronomic traits in Euterpe edulis

et al. 2023

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“…Selective logging may also alter the ecological context in which interactions occur, posing indirect effects on genetic diversity and population structure of other plant species not subject to logging practices. Studies examining the effects of selective logging on plant genetic diversity are usually focused on the genetic impact on the logged trees (e.g., Ang et al, 2016; Degen et al, 2006; Ng et al, 2009; Pereira et al, 2022; Widiyatno et al, 2016), but the effects of selective logging on non‐logged species have been little studied. In this study, we focused on a keystone mistletoe species ( Tristerix corymbosus , Loranthaceae), which is almost exclusively dispersed by an arboreal marsupial ( Dromiciops gliroides ) in the temperate rainforests (Amico & Aizen, 2000).…”

Section: Introductionmentioning

confidence: 99%

Effects of selective logging on genetic diversity and population structure of a keystone mistletoe

Fontúrbel,

González‐Ancin,

Rojas‐Hernández

et al. 2023

Population Ecology

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The effects of habitat degradation remain not fully understood. A recent study reported low effects of habitat degradation on plant genetic diversity but indicates that reduction in habitat quality could impact it as well as gene flow indirectly via ecological interactions. Selective logging is a way of habitat degradation, but studies examining its effects on plant genetic diversity on non‐logged forest plant species are relatively scarce. Using 3470 single‐nucleotide polymorphisms, we assess the effects of different selective logging intensities on the genetic diversity of 66 individuals of a keystone mistletoe (Tristerix corymbosus). We also examined the possible relationship with its seed disperser (Dromiciops gliroides) abundance in three sites of the temperate rainforests of southern Chile, with different levels of selective logging intensity. Our results show that selective logging increases allelic richness and inbreeding in this mistletoe; inbreeding increased with selective logging intensity, and heterozygosity decreased with D. gliroides abundance. While wood extraction seems to positively affect T. corymbosus genetic diversity, its long‐term consequences—such as increased inbreeding—are yet to be assessed in future studies.

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“…From a molecular point of view, studies using neutral microsatellite markers (i.e., with no influence on individual fitness) have shown that the loss and fragmentation of forests can lead to the collapse of gene flow between populations and increase the inbreeding coefficient (Carvalho et al, 2016(Carvalho et al, , 2017Pereira et al, 2022;Santos et al, 2016). Even located in selectively neutral locations, these markers are considered representative of the whole genome.…”

Section: Introductionmentioning

confidence: 99%

Tropical forest loss and geographic location drive the functional genomic diversity of an endangered palm tree

Santos

Cazetta

Faria

et al. 2023

Evolutionary Applications

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Human activity has diminished forests in different terrestrial ecosystems. This is well illustrated in the Brazilian Atlantic Forest, which still hosts high levels of species richness and endemism, even with only 28% of its original extent remaining. The consequences of such forest loss in remaining populations can be investigated with several approaches, including the genomic perspective, which allows a broader understanding of how human disturbance influences the genetic variability in natural populations. In this context, our study investigated the genomic responses of Euterpe edulis Martius, an endangered palm tree, in forest remnants located in landscapes presenting different forest cover amount and composed by distinct bird assemblage that disperse its seeds. We sampled 22 areas of the Brazilian Atlantic Forest in four regions using SNP markers inserted into transcribed regions of the genome of E. edulis, distinguishing neutral loci from those putatively under natural selection (outlier). We demonstrate that populations show patterns of structure and genetic variability that differ between regions, as a possible reflection of deforestation and biogeographic histories. Deforested landscapes still maintain high neutral genetic diversity due to gene flow over short distances. Overall, we not only support previous evidence with microsatellite markers, but also show that deforestation can influence the genetic variability outlier, in the scenario of selective pressures imposed by these stressful environments. Based on our findings, we suggest that, to protect genetic diversity in the long term, it is necessary to reforest and enrich deforested areas, using seeds from populations in the same management target region.

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Patterns of genetic diversity and structure of a threatened palm species (Euterpe edulis Arecaceae) from the Brazilian Atlantic Forest

Cited by 6 publications

References 57 publications

Single and multi-trait genomic prediction for agronomic traits in Euterpe edulis

Single and multi-trait genomic prediction for agronomic traits in Euterpe edulis

Effects of selective logging on genetic diversity and population structure of a keystone mistletoe

Tropical forest loss and geographic location drive the functional genomic diversity of an endangered palm tree

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