Genetic drift and uniform selection shape evolution of most traits in Eugenia dysenterica DC. (Myrtaceae)

Novaes, Carolina Ribeiro Diniz Boaventura; Novaes, Evandro; Mota, Elias Emanuel Silva; Telles, Mariana P. C.; Coelho, Alexandre Siqueira Guedes; Chaves, Lázaro José

doi:10.1007/s11295-018-1289-2

Cited by 12 publications

(4 citation statements)

References 75 publications

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“…However, the genetic diversity of C. camphora is much lower than that of other widespread tree species, such as Xanthoceras sorbifolia (Ho = 0.72 and He = 0.53) [50], Albanian olive (Ho = 0.75 and He = 0.60) [51], and Eugenia dysenterica DC. (Ho = 0.545 and He = 0.62) [52], and even lower than some fragment habitant species, such as Erythrophleum fordii Oliv. (Ho = 0.52 and He = 0.56) [22], Liriodendron chinense (Ho = 0.70 and He = 0.68) [53], and Alnus cremastogyne (Ho = 0.63 and He = 0.74) [54].…”

Section: Genetic Diversity Of C Camphoramentioning

confidence: 83%

Genetic Diversity and Population Genetic Structure of Cinnamomum camphora in South China Revealed by EST-SSR Markers

Zhong

Yang

et al. 2019

Forests

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Cinnamomum camphora is a valuable broad-leaf tree indigenous to South China and East Asia and has been widely cultivated and utilized by humans since ancient times. However, owing to its overutilization for essential oil extraction, the Transplanting Big Trees into Cities Program, and over deforestation to make furniture, its wild populations have been detrimentally affected and are declining rapidly. In the present study, the genetic diversity and population structure of 180 trees sampled from 41 populations in South China were investigated with 22 expressed sequence tag-simple sequence repeat (EST-SSR) markers. In total, 61 alleles were harbored across 180 individuals, and medium genetic diversity level was inferred from the observed heterozygosity (Ho), expected heterozygosity (He), and Nei’ gene diversity (GD), which were 0.45, 0.44, and 0.44, respectively. Among the 41 wild populations, C. camphora had an average of 44 alleles, 2.02 effective alleles, and He ranging from 0.30 (SC) to 0.61 (HK). Analysis of molecular variance (AMOVA) showed that 17% of the variation among populations and the average pairwise genetic differentiation coefficient (FST) between populations was 0.162, indicating relatively low genetic population differentiations. Structure analysis suggested two groups for the 180 individuals, which was consistent with the principal coordinate analysis (PCoA) and unweighted pair-group method with arithmetic means (UPGMA). Populations grouped to cluster I were nearly all distributed in Jiangxi Province (except population XS in Zhejiang Province), and cluster II mainly comprised populations from other regions, indicating a significant geographical distribution. Moreover, the Mantel test showed that this geographical distance was significantly correlated with genetic distance. The findings of this research will assist in future C. camphora conservation management and breeding programs.

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Section: Genetic Diversity Of C Camphoramentioning

confidence: 83%

Genetic Diversity and Population Genetic Structure of Cinnamomum camphora in South China Revealed by EST-SSR Markers

Zhong

Yang

et al. 2019

Forests

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“…Kalkman (6 SSR markers, Ho = 0.68, He = 0.73) [52], and Eugenia dysenterica DC. (9 SSR markers, Ho = 0.545, He = 0.62) [53]. However, the diversity of D. odorifera is even lower than in some rare and endemic tree species like Boswellia papyrifera (Del.…”

Section: Genetic Diversity Of D Odoriferamentioning

confidence: 99%

Genetic Diversity of the Endangered Dalbergia odorifera Revealed by SSR Markers

Liu

Hong

et al. 2019

Forests

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Dalbergia odorifera T. Chen (Fabaceae) is a semi-deciduous tree species indigenous to Hainan Island in China. Due to its precious heartwood “Hualimu (Chinese)” and Chinese medicinal components “Jiangxiang”, D. odorifera is seriously threatened of long-term overexploitation and has been listed on the IUCN (International Union for Conservation of Nature’s) red list since 1998. Therefore, the elucidation of its genetic diversity is imperative for conservation and breeding purposes. In this study, we evaluated the genetic diversity of 42 wild D. odorifera trees from seven populations covering its whole native distribution. In total, 19 SSR (simple sequence repeat) markers harbored 54 alleles across the 42 samples, and the medium genetic diversity level was inferred by Nei’s gene diversity (0.36), observed (0.28) and expected heterozygosity (0.37). Among the seven wild populations, the expected heterozygosity (He) varied from 0.31 (HNQS) to 0.40 (HNCJ). The analysis of molecular variance (AMOVA) showed that only 3% genetic variation existed among populations. Moderate population differentiations among the investigated populations were indicated by pairwise Fst (0.042–0.115). Structure analysis suggested two clusters for the 42 samples. Moreover, the seven populations were clearly distinguished into two clusters from both the principal coordinate analysis (PCoA) and neighbor-joining (NJ) analysis. Populations from Haikou city (HNHK), Baisha autonomous county (HNBS), Ledong autonomous county (HNLD), and Dongfang city (HNDF) comprised cluster I, while cluster II comprised the populations from Wenchang city and Sansha city (HNQS), Changjiang autonomous county (HNCJ), and Wuzhisan city (HNWZS). The findings of this study provide a preliminary genetic basis for the conservation, management, and restoration of this endemic species.

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“…The assessment of the pattern of phenotypic and molecular genetic divergence among natural subpopulations of Eugenia dysenterica suggested that the species has a spatial genetic structure which must be taken into account for managing its genetic resources for both conservation and breeding purposes (Boaventura-Novaes et al 2018).…”

Section: Cerrado Biomementioning

confidence: 99%

Microsatellites are important for forest genetic resources conservation in Brazilian biomes

et al. 2023

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Microsatellites are short sequence repeats that make up the genomes of eukaryotes and prokaryotes. They are of great importance as DNA markers for studies in several fields of genetics. In the present review, we searched for studies published in the five years period of 2017 to 2021 regarding the use of microsatellites in studies with forest tree species from the Brazilian biomes, in order to examine the importance of these markers for forest resources conservation. We searched scientific papers in journals indexed on the Scopus and Web of Science databases. There were found 38 peer reviewed articles that used microsatellites in the Brazilian biomes. The Atlantic Forest was the biome with more studies (35.9 %) and most of the studies were published in 2018 (34.2 %). In addition, most of the studied species belonged to the Fabaceae family (34.2 %). The conclusions and recommendations made in these studies ratify the great contribution of microsatellite markers in the conservation of native forest species in Brazilian biomes.

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Genetic drift and uniform selection shape evolution of most traits in Eugenia dysenterica DC. (Myrtaceae)

Cited by 12 publications

References 75 publications

Genetic Diversity and Population Genetic Structure of Cinnamomum camphora in South China Revealed by EST-SSR Markers

Genetic Diversity and Population Genetic Structure of Cinnamomum camphora in South China Revealed by EST-SSR Markers

Genetic Diversity of the Endangered Dalbergia odorifera Revealed by SSR Markers

Microsatellites are important for forest genetic resources conservation in Brazilian biomes

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