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Evolutionary Biology Group

Manuel Pimentel

 

RESEARCH GROUP IN VASCULAR PLANTS


Components:
Main Researcher: Dr Elvira Sahuquillo Balbuena
Manuel Pimentel Pereira, post-doc
David Romero Pedreira, PhD student



We currently lead or participate in four different projects/research lines, all of them related to the ecology, evolution and conservation of plant species, populations and communities:
1.- Systematics of the sweet vernal grasses (genera Anthoxanthum L. and Hierochloë R. Br., Poaceae). Genera Anthoxanthum and Hierochloë are composed by around 50 species whose taxonomic relationships are poorly understood. In this study we intend to: i) clarify the taxonomic and phylogenetic position of each of these species and genera; ii) unravel the biogeography of the genera, clarifying where and when the different speciation events took place and iii) clarify the position of these genera in the large Aveneae/Poeae clade of the Pooid grasses.
2.- Taxonomic and evolutionary studies in orchids. Within this research line, two main projects are currently underway. First, we are studying the taxonomy and conservation of different Galician orchids, mainly Epipactis helleborine (L.) Crantz and Orchis coriophora L. Second, we participate in the analysis of the phylogeny and evolution of the orchid subtribe Orchidinae.
3.- Multigenomic Evolution of temperate grasses (Poaceae; Pooideae). In this project, we use sequences from different genomes (chloroplast, mitochondrial and nuclear) to unravel the evolution, biogeography and phylogeography of several key genera (Anthoxanthum-Hierochloë, Brachypodium P. Beauv., Bromus L., Festuca L. and Vulpia C. C. Gmel), within the large grass subfamily Pooideae, many of whose members present a high economic and ecological value.
4.- Analysis and conservation of Peatlands  plant communities in NW Iberian. These ecosystems have significant environmental and natural value due to their paper to the maintenance of biodiversity, in the hydrological and water quality control; in the balance of trophic webs and they are indicators of large-scale environmental impacts and witnesses of paleoenvironmental changes. In Galicia exists a great variety of peatland compared to the Iberian Peninsula. To provide data to develop a comprehensive plan for use, conservation and restoration of Galician peatlands, we try to characterize peatland flora and their communities, study the biology and adaptations of peatland plant species and established the relationship among species distribution and environmental parameters.



CURRENT COLLABORATIONS (alphabetical order)
Carmen Acedo (University of León, Spain)
Christian Brochmann (Oslo University, Norway)
Pilar Catalán (University of Zaragoza, Spain)
Carlos Cortizo (Secondary Education teacher. Orchids expert)
María Isabel Fraga (University of Santiago de Compostela, Spain)
Luis Ángel Inda (University of Zaragoza, Spain)
Elvira López (University of Santiago de Compostela, Spain)
Marcos Perille (Secondary Education teacher. Orchids expert)
Rosa Romero (University of Santiago de Compostela, Spain)

Publications

  • Minaya, M, Pimentel, M, Mason-Gamer, RJ & Catalán, P(2013) Distribution and evolutionary dynamics of Stowaway Miniature Inverted repeat Transposable Elements (MITEs) in grasses. Molecular Phylogenetics and Evolution 68 :106-118
  • Pimentel, M, Sahuquillo, E, Torrecilla, Z, Popp, M, Catalán, P & Brochmann, C( 2013)  Hybridizations and long-distance colonizations at different time scales: towards resolution of long-term controversies in the sweet vernal grasses (Anthoxanthum L.) Annals of Botany. doi:10.1093/aob/mct170
  • Boesenkool, S, McGlynn, G, Epp, L, Taylor, D, Pimentel, M, Gizaw, A, Nemomissa, S, Brochmann, C & Popp, M. (2013) Ancient sedimentary DNA from a biodiversity hotspot in the humid tropics introduces a novel tool in conserving high-altitude tropical biodiversity. Conservation Biology (in press)
  • Inda, L.A.; Pimentel, M.; & Chase, M.W. (2012). Phylogenetics of tribe Orchideae (Orchidaceae: Orchidoideae) based on combined DNA matrices: inferences regarding timing of diversification and evolution of pollination syndromes. Annals of Botany. doi:10.1093/aob/mcs083
  • Catalán, P.; Müller, J.;  Hasterok, R.;  Jenkins, G.; Mur, L.A.J.; Langdon, T.; Betekhtin, A.; Siwinska, D.; Pimentel, M. & López-Alvarez, D. (2011). Evolution and taxonomic split of the model grass Brachypodium distachyon. Annals of Botany. doi:10.1093/aob/mcr294
  • Pimentel, M.; Catalán, P. & Sahuquillo, E. (2010). Morphological and molecular taxonomy of the annual diploids Anthoxanthum aristatum Boiss. and A. ovatum Lag. (Poaceae) in the Iberian Peninsula. Evidence of introgression in natural populations. Botanical Journal of the Linnean Society 164: 53-71
  • Inda, L.A.; Pimentel, M. & Chase, M.W. (2010). Chalcone synthase variation and phylogenetic relationships in Dactylorhiza (ORCHIDACEAE). Botanical Journal of the Linnean Society 163: 155-165
  • Inda, L.A.; Pimentel, M. & Chase, M.W. (2010). Contribution of mitochondrial cox1 intron sequences to the phylogenetics of tribe Orchideae (Orchidaceae). Do the distribution and sequence of this intron in orchids tell us something about its evolution?. Taxon 59: 1053-1064
  • Pimentel, M.; Sahuquillo, E. (2008).  “Relationship between the close congeners Anthoxanthum odoratum and A. alpinum (Poaceae; Pooideae) assessed through morphological and molecular methods”. Botanical Journal of the Linnean Society 156: 237-252
  • Pimentel, M.; Sahuquillo, E. (2008). “Relationship among some populations of Anthoxanthum odoratum and A. alpinum (Poaceae; Pooideae): a morphological approach”. In J.T. Columbus; E.A. Friar; J.M. Porter; L.M. Prince and M.G. Simpson [eds.] Monocots: comparative biology and evolution—Poales. Rancho Santa Ana Botanical Garden, Claremont, California. Pp: 472-484. ISBN: 0-9605808-7-5
  • Fraga, M.I.; Romero-Pedreira, D.; Souto, M.; Castro, D. & Sahuquillo, E. (2008) “Assessing the impact of wind farms on the plant diversity of blanket bogs in the Xistral Mountains (NW Spain)”. Mires and Peat 4: Article 06 (http://www.mires-and-peat.net/)
  • Pimentel, M.; Sahuquillo, E. & Catalán, P. (2007).  “Genetic diversity and spatial correlation patterns unravel the biogeographic history of the European sweet vernal grasses (Anthoxanthum L., Poaceae)”. Molecular Phylogenetics and Evolution. 44: 667-684
  • Pimentel, M.; Sahuquillo, E. (2007).  “Taxonomy and Biogeography of the high polyploidy Iberian endemism Anthoxanthum amarum Brot. (Poaceae; Pooideae) assessed by molecular and morphological methods”. Botanical Journal of the Linnean Society 155: 179-192
  • Pimentel, M.; Estevez, G. & Sahuquillo, E. (2007). “European sweet vernal grasses (Anthoxanthum, Poaceae; Pooideae; Aveneae): a morphometric taxonomical approach”. Systematic Botany 32: 43-59
  • Cortizo, C.; Sahuquillo, E. (2006). “Guía das orquídeas de Galicia”. Baía Edicións. A Coruña. ISBN: 84-96526-78-X
  • Perille, M.; Pimentel, M.; Romero, D. & Sahuquillo, E. (2001). Staehelina dubia en el NW Ibérico. Anales del Jardín Botánico de Madrid 59: 159-160

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