Genetic diversity and structure of an endangered medicinal plant species (Pilocarpus microphyllus) in eastern Amazon: implications for conservation

Monteiro, Waléria P.; Dalapicolla, Jeronymo; Carvalho, Carolina da Silva; Veiga, Jamille Costa; Vasconcelos, Santelmo; Ramos, Sílvio Júnio; Gastauer, Markus; Jaffé, Rodolfo; Caldeira, Cecílio Fróis

doi:10.1007/s10592-022-01454-6

Cited by 4 publications

(4 citation statements)

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“…The occurrence records of P. microphyllus used in this study were extracted from the SpeciesLink database (https://specieslink.net, accessed in 15 January 2022), as well all similar data described by Monteiro et al [66]. First, the data from the SpeciesLink were checked to verify whether all the occurrence points really belonged to P. microphyllus, and whether there were duplicate and/or missing data.…”

Section: Studied Species Study Area and Collection Datamentioning

confidence: 99%

“…In addition, the geographic coordinates were verified, since there may have been inconsistencies related to possible typing errors. After this step, the occurrence points located in the states of Maranhão and Piauí were taken from the SpeciesLink database, while the points over the state of Pará were taken from Monteiro et al [66]. It is important to emphasize that we only used records of the species that occur naturally in the study area (Figure 1b) [26,59,60].…”

Section: Studied Species Study Area and Collection Datamentioning

confidence: 99%

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Potential Distribution of Pilocarpus microphyllus in the Amazonia/Cerrado Biomes under Near-Future Climate Change Scenarios

Monteiro

Souza

Miranda

et al. 2023

Plants

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Pilocarpus microphyllus Stapf. ex Wardlew. (Rutaceae) is an endemic and threatened medicinal plant species from tropical Brazil. Popularly known as “jaborandi”, it is the unique natural source of pilocarpine, an alkaloid used to medical treat glaucoma and xerostomia. Based on Species Distribution Models (SDMs), we modeled the suitability of P. microphyllus’s geographical distribution considering three Global Circulation Models (GCMs) under two future climate change scenarios (SSP2-4.5 and SSP5-8.5). The quantitative analyses carried out using ten different SDM algorithms revealed that precipitation seasonality (Bio15) and precipitation of the driest month (Bio14) were the most important bioclimatic variables. The results evidenced four main key areas of continuous occurrence of the plant spreading diagonally over tropical Brazilian biomes (Amazon, Cerrado and Caatinga). The near-future (2020 to 2040) ensemble projections considering all GCMs and scenarios have indicated negative impacts for the potential loss or significant reduction in suitable habitats for P. microphyllus in the transition region between the Amazon and Cerrado into central and northern Maranhão state, and mainly in the Caatinga biome over the northern Piaui state. On the other hand, positive impacts of the expansion of the plant habitat suitability are projected over forest cover protected areas of the Amazon biome in the southeastern Pará state. Since the jaborandi is of socioeconomic importance for many families in the north/northeast Brazil, it is urgent to implement public policies for conservation and sustainable management, thus mitigating the impacts of global climate change.

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Section: Studied Species Study Area and Collection Datamentioning

confidence: 99%

Section: Studied Species Study Area and Collection Datamentioning

confidence: 99%

Potential Distribution of Pilocarpus microphyllus in the Amazonia/Cerrado Biomes under Near-Future Climate Change Scenarios

Monteiro

Souza

Miranda

et al. 2023

Plants

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“…crocodile lizard, haplotype, major histocompatibility complex, presence and absence variations, structural variations maintaining high levels of genetic variation (ELLIS et al, 2006;Ge & Hong, 1999;Monteiro et al, 2022). In addition to population size and distribution, numerous other factors, including life-history traits, human activity and evolutionary history, may also influence the genetic variation and distribution of rare and endangered species (Karron, 1987).…”

Section: Introductionmentioning

confidence: 99%

“…Species with limited distribution ranges and few individuals generally exhibit low levels of genetic polymorphism, as a consequence of the combined effects of selection under narrow environmental conditions and genetic drift and inbreeding in small isolated populations (Ellstrand & Elam, 1993). However, despite their small population sizes, some rare and endangered plant species succeed in maintaining high levels of genetic variation (ELLIS et al, 2006; Ge & Hong, 1999; Monteiro et al, 2022). In addition to population size and distribution, numerous other factors, including life‐history traits, human activity and evolutionary history, may also influence the genetic variation and distribution of rare and endangered species (Karron, 1987).…”

Section: Introductionmentioning

confidence: 99%

Structural variations in crocodile lizard populations provide novel insights into genomic variations in endangered animals

Xiong,

Zhou,

Song

et al. 2023

Molecular Ecology

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Population‐scale genome resequencing of endangered animals may contribute to gaining an understanding of how genomes vary as population sizes become smaller, as well as the functional implications of such variation. In this study, we analysed structural variations and gene presence and absence variations in the genomes of population of the endangered crocodile lizards. We found that the frequencies of some genes showed significant differences between crocodile lizards in different regions, indicating the influence of environmental selection, as well as potential contributions from demography and isolation, in shaping gene presence and absence variations. The haplotype diversity of major histocompatibility complex (MHC) genes was also found to differ among crocodile lizards inhabiting different regions. These findings indicate that well‐designed interbreeding of crocodile lizards from different regions may facilitate the exchange of genes between different lizard populations and increase the haplotype diversity of MHC genes, which may be beneficial for the survival of these lizards. Our findings in this study, based on differences in gene structural variation, provide new insights into genomic variation and may contribute to the conservation of endangered animals.

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Multiplexed ISSR Genotyping by Sequencing (MIG-Seq)

Nanami

2023

Methods in Molecular Biology

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Genetic diversity and structure of an endangered medicinal plant species (Pilocarpus microphyllus) in eastern Amazon: implications for conservation

Cited by 4 publications

References 74 publications

Potential Distribution of Pilocarpus microphyllus in the Amazonia/Cerrado Biomes under Near-Future Climate Change Scenarios

Potential Distribution of Pilocarpus microphyllus in the Amazonia/Cerrado Biomes under Near-Future Climate Change Scenarios

Structural variations in crocodile lizard populations provide novel insights into genomic variations in endangered animals

Multiplexed ISSR Genotyping by Sequencing (MIG-Seq)

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