Genetic Diversity and Differentiation Among Four “Quercus robur” and “Q. petraea” Natural Populations in Romania

Authors

  • I. Crăciunesc Transilvania University of Brasov, Romania
  • A.L. Curtu Transilvania University of Brasov, Romania
  • N. Sofletea Transilvania University of Brasov, Romania

Keywords:

Quercus robur, Quercus petraea, expressed sequence tags (EST), microsatellites (SSRs), genetic differentiation, hybridization

Abstract

A set of non-genic SSRs (simple sequence repeats) and EST (expressed sequence tags)-SSRs was used to estimate the genetic diversity and differentiation among four natural populations of two native oak species: Quercus robur and Q. Petraea. Similar values of genetic diversity were found in both species. Two out of ten loci, QrZAG112 and QpZAG110, displayed very high FST values. Averaged across loci, the genetic differentiation was high and significant (FST = 0.045, p<0.05). Genetic distances were much higher between species than between populations within species. A Bayesian analysis indicated that a few sampled trees may be the result of introgressive hybridization.

Author Biographies

I. Crăciunesc, Transilvania University of Brasov, Romania

Silviculture Department, no.1 Beethoven st., Brasov 500123

A.L. Curtu, Transilvania University of Brasov, Romania

Silviculture Department, no.1 Beethoven st., Brasov 500123

N. Sofletea, Transilvania University of Brasov, Romania

Silviculture Department, no.1 Beethoven st., Brasov 500123

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Published

2016-12-23

Issue

Vol. 9(58) No. 2 (2016)

Section

FORESTRY