Genetic variation in Aechmea winkleri, a bromeliad from an inland Atlantic rainforest fragment in Southern Brazil

Göetze, Márcia; Büttow, Miriam Valli; Zanella, Camila Martini; Paggi, Gecele Matos; Bruxel, Manuela; Pinheiro, Felipe Grillo; Sampaio, Jamilla Alves Trindade; Palma‐Silva, Clarisse; Cidade, Fernanda Witt; Bered, Fernanda

doi:10.1016/j.bse.2014.12.010

Cited by 20 publications

(15 citation statements)

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“…When considering SSR loci, A. calyculata showed high genetic diversity levels, similar to those recovered for other Atlantic rainforest species from the same genus (Capra, ; Goetze et al ., , ) and higher compared to bromeliads from other genera (Zanella et al ., ; Lavor et al ., ). Similar levels of genetic variation were observed among A. calyculata populations.…”

Section: Discussionmentioning

confidence: 86%

“…Twelve SSR loci were used to genotype 144 individuals from five populations (Ac01: Goetze et al ., ; Ao6, Ao13: Abondanza, ; Aw03: Goetze et al ., ; Acom_12.12, Acom_67.2, Acom_71.3, Acom_78.4, Acom_82.8: Wörhmann & Weising, ; e6b: Boneh, Kuperus & Van Tienderen, ; PaZ01: Paggi et al ., ; VgC01: Palma‐Silva et al ., ). Population BA was not included in the SSR analysis because only three individuals were found.…”

Section: Methodsmentioning

confidence: 99%

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East-to-west genetic structure in populations ofAechmea calyculata(Bromeliaceae) from the southern Atlantic rainforest of Brazil

et al. 2016

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The Brazilian Atlantic rainforest is the second largest tropical humid forest in South America. Most phylogeographical studies conducted so far have focused on taxa with a north‐to‐south pattern of geographical distribution in the Atlantic rainforest. In the present study, we focused on Aechmea calyculata, a species with an east‐to‐west pattern of occurrence in the southern portion of the Atlantic rainforest. We analysed the genetic diversity and structure of A. calyculata using 12 nuclear microsatellites (simple sequence repeats, SSRs), two intergenic plastid DNA spacers and the nuclear gene phytochrome C (phyC). Results revealed high genetic structure across the distribution of A. calyculata, especially between populations in the western and eastern regions. However, no apparent geographical barrier isolates these two groups today, suggesting a historical process of vicariance. This pattern was probably associated with vegetation shifts that occurred during the Pleistocene, with grasslands acting as a barrier to gene flow. Genetic diversity was evenly distributed among A. calyculata populations with SSR and plastid DNA and concentrated in the eastern region when phyC was considered. Signs of demographic population growth in the eastern group were detected for A. calyculata. Our results support the findings of other studies, which also found populations with high genetic diversity occurring in the southern portion of the Atlantic rainforest.

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Section: Discussionmentioning

confidence: 86%

Section: Methodsmentioning

confidence: 99%

East-to-west genetic structure in populations ofAechmea calyculata(Bromeliaceae) from the southern Atlantic rainforest of Brazil

et al. 2016

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“…They are currently propagated by seeds and stem cuttings (Peter 2002); however, during the island survey, not many seedlings were found under the stock plants, piquing our interest. To explore the influence of the plant's breeding system on its genetic structure as well as the community's structural features and evaluate its future development, we analyzed the genetic diversity of two generations of C. sclerophylla (seedling plants and stock plants) using SSR molecular markers because of the good genome coverage (Ho et al 2006;Feng et al 2006;Goetze et al 2015;Queiroz et al 2015). We determined the genetic diversity levels of C. sclerophylla communities propagated by seeds and root turions, providing a theoretical foundation for the development and protection of this tree.…”

Section: Introductionmentioning

confidence: 99%

Ecological succession of a natural community of Castanopsis sclerophylla on Laoshan Island, China

et al. 2016

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Castanopsis sclerophylla was surveyed for its root turion capacity on Laoshan Island in Zhejiang Province and dispersion patterns of seedlings, genetic diversity and genetic variation coefficient was studied using a SSR (simple sequence repeat) molecular marker technique to explore the genetic diversity of C. sclerophylla (Lindl.) Schott as a community and evaluate the community's development. The results showed that C. sclerophylla had strong root turion capacity, of which type Re2 was the most frequent, accounting for 32.4 and 82.4 % of the seedlings under the stock plant were from within-community mating; the 6 pairs of SSR primers chosen yielded high resolution with 97.6 % polymorphic sites; the within-community genetic diversity was over 88.9 % with stock plants (0.49) [ seedling plants (0.45). Apparently, C. scerophyllan on Laoshan Island, propagating mainly by root turions, has developed high genetic diversity within a short period, keeping the community in a stage of stable growth and moving toward a climax community. The tillers, however, aggravate closing of the community so that it receives less pollen from outside. Within-community mating is thus reaching seriously high levels, which can lead to lower within-community genetic variation, a decline in DNA genetic diversity, and is bad for its development. Therefore, human interference should be taken to expand genetic exchange among communities.

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“…Nevertheless, relatively few genetic studies have examined Neotropical plant species and investigated genetic aspects of BAF bromeliads by comparing temperate forests (Cavallari et al, 2006;Barbará et al, 2007;Palma-Silva et al, 2009;Versieux et al, 2012;Zanella et al, 2012;Lavor et al, 2014;Goetze et al, 2015). According to Zanella et al (2012), only 20 species of the following nine genera have been previously evaluated, and most of the studied species are endemic to the Atlantic rainforest in southeastern Brazil: Aechmea, Alcantarea, Bromelia, Dyckia, Encholirium, Pitcairnia, Puya, Tillandsia, and Vriesea. However, this biome has been severely destroyed and reduced to only 13% approximately of its original area, which is the main threat to BAF flora and fauna (Ribeiro, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, research on population genetic diversity is essential to provide information on the risk of species extinction and to design effective conservation strategies (Frankham et al, 2002). In this context, molecular markers are widely used for studying genetic variability (Cavallari et al, 2006;Barbará et al, 2007Barbará et al, , 2009Lavor et al, 2014;Goetze et al, 2015), and several markers have been developed for Bromeliaceae: Pitcairnia (Sarthou et al, 2003;Paggi et al, 2008), Alcantarea , Dyckia (Zanella et al, 2012), Encholirium (Hmeljevski et al, 2013), Orthophytum (Aoki-Gonçalves et al, 2014), and recently, Vriesea (Neri et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity of Bromeliaceae species from the Atlantic Forest

Sheu

Cunha-Machado²,

Gontijo

et al. 2017

Genet. Mol. Res.

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ABSTRACT. The Bromeliaceae family includes a range of species used for many purposes, including ornamental use and use as food, medicine, feed, and fiber. The state of Espírito Santo, Brazil is a center of diversity for this family in the Atlantic Forest. We evaluated the genetic diversity of five populations of the Bromeliaceae family, including specimens of the genera Aechmea, Billbergia (subfamily Bromelioideae), and Pitcairnia (subfamily Pitcairnioidea), all found in the Atlantic Forest and distributed in the state of Espírito Santo. The number of alleles per locus in populations ranged from two to six and the fixation index (F), estimated for some simple sequence repeats in bromeliad populations, was less than zero in all populations. All markers in the Pitcairnia flammea population were in Hardy-Weinberg equilibrium (P < 0.05). Moreover, significant deviations from Hardy-Weinberg equilibrium were observed at some loci in populations of the five bromeliad species. In most cases, this can be attributed to the presence of inbreeding or the Wahlund effect. The genetic diversity indices of five species showed greater allelic richness in P. flammea (3.55). Therefore, we provide useful information for the characterization of genetic diversity in natural populations of Aechmea ramosa, Aechmea nudicaulis, Billbergia horrid, Billbergia euphemia, and P. flammea in Atlantic Forest remnants in the south of Espírito Santo state.

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Genetic variation in Aechmea winkleri, a bromeliad from an inland Atlantic rainforest fragment in Southern Brazil

Cited by 20 publications

References 51 publications

East-to-west genetic structure in populations ofAechmea calyculata(Bromeliaceae) from the southern Atlantic rainforest of Brazil

East-to-west genetic structure in populations ofAechmea calyculata(Bromeliaceae) from the southern Atlantic rainforest of Brazil

Ecological succession of a natural community of Castanopsis sclerophylla on Laoshan Island, China

Genetic diversity of Bromeliaceae species from the Atlantic Forest

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