High level of genetic variation within clonal orchid Goodyera repens

Brzosko, Emilia; Wróblewska, Ada; Jermakowicz, Edyta; Hermaniuk, Adam

doi:10.1007/s00606-013-0817-7

Cited by 13 publications

(8 citation statements)

References 51 publications

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“…Additionally, in populations of orchids, a decrease in seed germination with an increase in distance from the mother plants is connected with a higher probability of a fungal component near the maternal plants [13,31,50,70]. Furthermore, the genetically similar progeny (seeds) is dispersed mainly in the vicinity of the mother plants, enhancing reproductive isolation between particular plant groups [32,[71][72][73]. In populations in which fruiting shoots form aggregations (e.g., in clonal species), spatial structure increases [54].…”

Section: Consequences Of Restricted Seed Dispersal In Orchidsmentioning

confidence: 99%

Seed dispersal in six species of terrestrial orchids in Biebrza National Park (NE Poland)

et al. 2017

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Knowledge about seed dispersal is required to explain problems in ecology, phylogeography, and conservation biology. Even though seed dispersal is a fundamental mechanism to understand problems at different levels of biological organization (individual, population, species, landscape), it remains one of the least recognized processes. Similar to other groups of plants, very little is known regarding patterns and distances of seed dispersal in orchids. Orchid seeds are generally assumed to be widely dispersed by wind because of their small size and low weight. Between 2006 and 2008, we conducted a field study of the distances at which orchid seeds are dispersed, and determined factors affecting dispersal. Investigations included 13 populations of six terrestrial orchid species -Cypripedium calceolus, Cephalanthera rubra, Epipactis helleborine, Goodyera repens, Neottia ovata, and Platanthera bifolia. To evaluate seed dispersal in orchid populations, 8.5-cm Petri dishes (traps) with self-adhesive paper were placed along transects, starting from a group of fruiting plants, which were considered to be the dispersal source. Seeds of the investigated orchid species were dispersed over relatively short distances. There were statistically significant negative correlations between seed density and distance from the fruiting plants. Seeds of species with taller fruiting shoots were dispersed farther than those with shorter ones (R = 0.68, p < 0.05). We discuss the causes and consequences of the dispersal patterns of orchid seeds.

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Section: Consequences Of Restricted Seed Dispersal In Orchidsmentioning

confidence: 99%

Seed dispersal in six species of terrestrial orchids in Biebrza National Park (NE Poland)

et al. 2017

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“…Encontramos una baja diferenciación entre poblaciones que no pudo ser atribuida a la distancia geográfica. El nivel de diferenciación entre poblaciones de G. skinneri (8%), está por debajo de lo observado en otras poblaciones de orquídeas; por ejemplo, Brzosko et al (2013) reportan una diferenciación genética de 6% en Goodyera repens (L.) R. Br.…”

Section: Discussionunclassified

El uso ornamental de Guarianthe skinneri (Orchidaceae), en Chiapas y Guatemala, determina parcialmente su diversidad y estructura genética

et al. 2018

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Antecedentes y Objetivos: Guarianthe skinneri es una orquídea nativa de Chiapas, México, con distribución centroamericana, objeto de extracción y comercio ilícito; por esta razón, está catalogada como amenazada en la Norma Mexicana NOM-059-SEMARNAT-2010. En la región del Soconusco (Chiapas, México) y Guatemala, se le denomina “Candelaria”, debido a que su época de floración coincide con las fechas de la homónima virgen. En la ciudad de Tapachula (Chiapas, México), es común encontrar individuos de esta especie en los patios de domicilios particulares. El objetivo de este trabajo fue estimar la diversidad y estructura genética de G. skinneri a partir de muestras obtenidas de una población urbana de Tapachula y de su comparación con cinco poblaciones silvestres de Guatemala, para determinar el potencial de la población urbana como fuente de propágulos y averiguar si la distancia genética entre poblaciones se relaciona con la distancia geográfica que las separa.Métodos: Como marcador genético se utilizó la variación nucleotídica en secuencias de dos regiones de ADN nuclear ribosomal (ITS 1-2 y ITS 3-4). Se concatenaron las secuencias y se obtuvieron los parámetros convencionales de diversidad y estructura genética.Resultados clave: Se observaron poblaciones desde bajos hasta altos niveles de diversidad genética. Se registró un total de 38 haplotipos cuyo número entre poblaciones osciló entre 1 y 15. La diversidad haplotípica (Hd) estuvo entre 0 y 1, el número promedio de sitios polimórficos entre 0 y 165. La diversidad nucleotídica (π) y el número promedio de diferencias nucleotídicas muestran que Tapachula tuvo la mayor diversidad, seguida por poblaciones de Guatemala. La estructura genética fue moderada (Fst=0.083) y la distancia genética no se asoció con la distancia geográfica de las poblaciones.Conclusiones: Los patrones de diversidad y estructura genética entre poblaciones se atribuyen a factores antropogénicos derivados de su uso ornamental, especialmente en la ciudad de Tapachula.

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“…The populations existing in anthropogenic habitats could also be a reservoir of genetic diversity for this species in the context of a declining number of natural populations. Observations of orchids established in secondary habitats have been carried out in different parts of the globe (Adamowski, ; Nowak, ; Shefferson, Kull & Tali, ; Scheffknecht et al ., ; Brzosko et al ., ), but information about genetic diversity resources in these populations is sparse. In our opinion, these populations should be conserved and appropriately managed.…”

Section: Discussionmentioning

confidence: 99%

Phylogeographical structure of the boreal-montane orchidMalaxis monophyllosas a result of multi-directional gene flow

et al. 2015

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We investigated the phylogeographical structure of the boreal‐montane orchid Malaxis monophyllos in its Eurasian geographical range. We analysed four sequences of plastid DNA (trnL, trnL–trnF, rps16 and accD‐psaI), resulting in 19 haplotypes and revealing a high level of intraspecific diversity (HD = 0.702 and π = 0.196 × 10−2), but showing a lack of phylogeographical structure. This pattern might be caused by multiple phenomena and processes, e.g. broad‐fronted recolonization with accompanying multi‐directional gene flow between populations and expansion from at least two refugial areas. Despite the lack of phylogeographical structure, three centres of haplotype diversity were indicated in the European part of the range of M. monophyllos. According to these data, alpine and lowland glacial refugia located between the ice sheets in the European Alps and the Scandinavian glaciers seem most likely to be in Europe. Moreover, models of climatically suitable areas during the Last Glacial Maximum (LGM) confirmed the Alps as a possible refuge, and indicated an opportunity for the persistence of M. monophyllos populations in Beringia and parts of Siberia. Using two models [Model for Interdisciplinary Research on Climate (MIROC) and Community Climate System Model (CCSM)], we predicted a significant reduction in climatically suitable areas for M. monophyllos in the future (2080). Our study also demonstrated that the biological features of M. monophyllos, including breeding system and dispersal mode, seem to be crucial in understanding its phylogeographical pattern. Our results also highlighted the importance of anthropogenic habitats as reservoirs of genetic diversity and alternative habitats for this species in the context of declining natural populations. © 2015 The Linnean Society of London, Botanical Journal of the Linnean Society, 2015, 178, 138–154.

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High level of genetic variation within clonal orchid Goodyera repens

Cited by 13 publications

References 51 publications

Seed dispersal in six species of terrestrial orchids in Biebrza National Park (NE Poland)

Seed dispersal in six species of terrestrial orchids in Biebrza National Park (NE Poland)

El uso ornamental de Guarianthe skinneri (Orchidaceae), en Chiapas y Guatemala, determina parcialmente su diversidad y estructura genética

Phylogeographical structure of the boreal-montane orchidMalaxis monophyllosas a result of multi-directional gene flow

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