Species boundaries inferred from ISSR markers in the Myrcia laruotteana complex (Myrtaceae)

Lima, Duane F.; Mauad, Anna Victoria Silvério Righetto; Silva-Pereira, Viviane; Smidt, Eric de Camargo; Goldenberg, Renato

doi:10.1007/s00606-014-1078-9

Cited by 14 publications

(7 citation statements)

References 32 publications

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“…In both cases, the results lead to some dubious taxonomic circumscriptions. In such scenarios, molecular markers have proven to be useful tools for solving species identification (Oliveira 2013;Lima et al 2015;Tuler et al 2015;Spooner 2016;Zhang et al 2016;Christ et al 2018). Thus, molecular markers can provide new information that enables taxonomic decision-making and phylogenetic reconstruction (Duminil and Di Michele 2009).…”

Section: Introductionmentioning

confidence: 99%

Species delimitation within Campomanesia (Myrtaceae) using morphology and amplification profiles of microsatellite markers

et al. 2020

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Campomanesia is a well-circumscribed genus within Myrtaceae, but the boundaries among some of its species remain poorly understood. Microsatellite amplification profiles have proven useful DNA fingerprinting for plant species identification, but have never been applied to the taxonomy of this genus. Here we studied 12 species of Campomanesia, including a set of related and non-related species, as well as species with doubtful boundaries. Forty-eight morphological characters and 50 primers were used to test the species. A cluster analysis followed by a group sharpness test and a heat map analysis was performed with both sets of data. A regression tree was constructed using only on the molecular data. Seven groups based on morphological characters and five groups based on molecular characters were revealed by cluster analysis and the sharpness group test. The microsatellite amplification profiles were efficient at distinguishing the studied species, despite the smaller number of distinct groups formed by this marker compared with the morphological data. Among the 50 primers included, 13 were informative for species distinction, and 10 were indicated by the regression tree to species identification. Microsatellite amplification profiles proved to be an informative tool for the taxonomy of Campomanesia.

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Section: Introductionmentioning

confidence: 99%

Species delimitation within Campomanesia (Myrtaceae) using morphology and amplification profiles of microsatellite markers

et al. 2020

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“…The number of fragments amplified by the ISSR markers was included in a lower range than would be expected for species of the Myrtaceae tribe (Lima et al, 2015b). In addition, the 99 polymorphic bands obtained with the nine primers were sufficient to find a reliable number of fragments to estimate genetic variability (Dudley, 1994).…”

Section: Discussionmentioning

confidence: 99%

“…The Shannon Index and the average HE found for this native population (0.40; 0.30), was lower than those found by Brandão et al (2015) (0.48;0.33) and by Alves et al (2016) (0.46;0.30) who worked with M. splendes and M. lundiana, respectively. Knowing that the range of HE is expected to be similar between species that present similar characters, including biological, reproductive and distribution characteristics (Lima et al, 2015b), the numbers of the Shannon Index and HE can be, in part, explained because of the origin of the plants used in their research, which was a conserved vegetation. This contrasts with the M. ovata location, an anthropized vegetation (Santana et al, 2012), which could result in a lower gene flow.…”

Section: Discussionmentioning

confidence: 99%

Research Article Genetic diversity of a native population of <em>Myrcia ovata</em> (Myrtaceae) using ISSR molecular markers

White¹,

Silva²,

Álvares-Carvalho³

et al. 2018

Genet. Mol. Res.

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Myrcia ovata Cambess. (Myrtaceae) is a medicinal and aromatic plant that has analgesic, bactericidal and fungicidal properties. Even though this plant has economic potential, nothing is known about the variability and genetic diversity of this species. This information is necessary to establish conservation strategies and allow prospection of natural resources. The aim of this study was to evaluate the genetic diversity of M. ovata individuals of a native population in the municipality of Japaratuba, Sergipe State, Brazil, using Inter-Simple Sequence Repeat molecular markers (ISSR). Nine primers were tested, resulting in 99 polymorphic bands. The 24 individuals evaluated were clustered in two groups by the software Structure. The Jaccard similarity ranged from 0.21 (MYRO-034 and MYRO-159) to 0.82 (MYRO-178.1 and MYRO-178.2), with an average of 0.38. The genetic diversity of M. ovata was considered of medium level. The individuals MYRO-154, MYRO-175 and MYRO-175.1 presented the most variability.

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“…Myrcia tomentosa , M. splendens ) in the morphological diversity analysis; these were not considered pseudoreplicates for the question addressed because high phenotypic plasticity in these complexes suggests that species delimitation is not clear (e.g. Lima et al ., ). In total, 161 species were sampled (120 of which were also represented in the phylogenetic analyses, see below), corresponding to 22% of Myrcia species diversity (Table , Supporting Information Methods S1).…”

Section: Methodsmentioning

confidence: 97%

Floral uniformity through evolutionary time in a species‐rich tree lineage

et al. 2018

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Changes in floral morphology are expected across evolutionary time and are often promoted as important drivers in angiosperm diversification. Such a statement, however, is in contrast to empirical observations of species-rich lineages that show apparent conservative floral morphologies even under strong selective pressure to change from their environments.Here, we provide quantitative evidence for prolific speciation despite uniform floral morphology in a tropical species-rich tree lineage. We analyse floral disparity in the environmental and phylogenetic context of Myrcia (Myrtaceae), one of the most diverse and abundant tree genera in Neotropical biomes.Variation in floral morphology among Myrcia clades is exceptionally low, even among distantly related species. Discrete floral specialisations do occur, but these are few, present low phylogenetic signal, have no strong correlation with abiotic factors, and do not affect overall macroevolutionary dynamics in the lineage.Results show that floral form and function may be conserved over large evolutionary time scales even in environments full of opportunities for ecological interactions and niche specialisation. Species accumulation in diverse lineages with uniform flowers apparently does not result from shifts in pollination strategies, but from speciation mechanisms that involve other, nonfloral plant traits.

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Species boundaries inferred from ISSR markers in the Myrcia laruotteana complex (Myrtaceae)

Cited by 14 publications

References 32 publications

Species delimitation within Campomanesia (Myrtaceae) using morphology and amplification profiles of microsatellite markers

Species delimitation within Campomanesia (Myrtaceae) using morphology and amplification profiles of microsatellite markers

Research Article Genetic diversity of a native population of <em>Myrcia ovata</em> (Myrtaceae) using ISSR molecular markers

Floral uniformity through evolutionary time in a species‐rich tree lineage

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