Genetic Diversity in Relict and Fragmented Populations of Ulmus glabra Hudson in the Central System of the Iberian Peninsula

Martin del Puerto, Maria; Martinez Garcia, Felipe; Mohanty, Aparajita y Martín, J. P. (2017). Genetic Diversity in Relict and Fragmented Populations of Ulmus glabra Hudson in the Central System of the Iberian Peninsula. "Forest", v. 8 (n. 5); pp. 1-20. ISSN 1999-4907. https://doi.org/10.3390/f8050143.

Descripción

Título: Genetic Diversity in Relict and Fragmented Populations of Ulmus glabra Hudson in the Central System of the Iberian Peninsula
Autor/es:
  • Martin del Puerto, Maria
  • Martinez Garcia, Felipe
  • Mohanty, Aparajita
  • Martín, J. P.
Tipo de Documento: Artículo
Título de Revista/Publicación: Forest
Fecha: Mayo 2017
Volumen: 8
Materias:
Escuela: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Departamento: Biotecnología - Biología Vegetal
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Ulmus glabra Hudson, or Wych elm, occurs as fragmented and relict natural populations in the Central System, which acts as a refugium in the Iberian Peninsula. Considering the importance of the Central System populations of U. glabra, the main objective was to assess their genetic diversity using nuclear microsatellite markers. A total of 360 different genotypes were detected in the 427 U. glabra individuals analyzed. Wych elm populations showed a highly significant genetic differentiation (24%; p = 0.0001). Of the 22 populations studied, population of Rozas de Puerto Real (ROZ) showed the highest values of effective number of alleles (2.803), mean Shannon?s diversity (1.047) and expected heterozygosity (0.590). Populations of ROZ and Mombeltrán (MOM) showed the highest values of observed heterozygosity (0.838 and 0.709, respectively), and highly negative values for inbreeding coefficient (?0.412 and ?0.575, respectively). Also, most of putative hybrids (50 of 55) were observed in these two populations. Demographic analysis revealed signals for recent (four populations) and ancestral (fifteen populations) bottlenecks. Fragmented populations with diminishing number of individuals, along with anthropogenic intervention and Dutch elm disease (DED), are the main threats to U. glabra populations. From a future perspective, the information generated can be considered in the formulation of conservation strategies for U. glabra populations in the Central System.

Más información

ID de Registro: 46471
Identificador DC: http://oa.upm.es/46471/
Identificador OAI: oai:oa.upm.es:46471
Identificador DOI: 10.3390/f8050143
URL Oficial: http://www.mdpi.com/1999-4907/8/5/143
Depositado por: Memoria Investigacion
Depositado el: 05 Jun 2017 13:01
Ultima Modificación: 05 Jun 2017 13:01
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