Genetic Diversity of Pinus nigra Arn. Populations in Southern Spain and Northern Morocco Revealed By Inter-Simple Sequence Repeat Profiles †

International Journal of Molecular Sciences

Angela Rubio-Moraga¹  David Candel-Perez⁴  Manuel E. Lucas-Borja⁴  Pedro A. Tiscar⁵  Benjamin Vi༞gla²  Juan C. Linares³  Lourdes Gómez-Gómez¹ 

[1] Department of Agricultural Technology and Science and Genetics, Faculty of Pharmacy, Institute of Botany, University of Castilla-La Mancha, Campus Universitario s/n, Albacete, E-02071, Spain; E-Mails:;Faculty of Experimental Sciences, University of Jaén (B3-158), Campus Las Lagunillas, s/n E-23009, Jaén, Spain; E-Mail:;Department of Physical Systems, Chemical and Natural Sciences, Pablo de Olavide University, Ctra. Utrera km. 1, Sevilla, E-41002, Spain; E-Mail:;Department of Agricultural Technology and Science and Genetics. ETSIA, University of Castilla-La Mancha, Campus Universitario s/n, Albacete, E-02071, Spain; E-Mails:;Training Center and Experimental Forestry, Cazorla, E-23470, Spain; E-Mail:

关键词: Pinus nigra;    genetic diversity;    populations;    ISSR;   

DOI  :  10.3390/ijms13055645

来源: mdpi

【 摘 要 】

Eight Pinus nigra Arn. populations from Southern Spain and Northern Morocco were examined using inter-simple sequence repeat markers to characterize the genetic variability amongst populations. Pair-wise population genetic distance ranged from 0.031 to 0.283, with a mean of 0.150 between populations. The highest inter-population average distance was between PaCU from Cuenca and YeCA from Cazorla, while the lowest distance was between TaMO from Morocco and MA Sierra Mágina populations. Analysis of molecular variance (AMOVA) and Nei’s genetic diversity analyses revealed higher genetic variation within the same population than among different populations. Genetic differentiation (Gst) was 0.233. Cuenca showed the highest Nei’s genetic diversity followed by the Moroccan region, Sierra Mágina, and Cazorla region. However, clustering of populations was not in accordance with their geographical locations. Principal component analysis showed the presence of two major groups—Group 1 contained all populations from Cuenca while Group 2 contained populations from Cazorla, Sierra Mágina and Morocco—while Bayesian analysis revealed the presence of three clusters. The low genetic diversity observed in PaCU and YeCA is probably a consequence of inappropriate management since no estimation of genetic variability was performed before the silvicultural treatments. Data indicates that the inter-simple sequence repeat (ISSR) method is sufficiently informative and powerful to assess genetic variability among populations of P. nigra.

【 授权许可】

CC BY   
© 2012 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.