@article {85,
	title = {A genetic linkage map of Quercus robur L. (pedunculate oak) based on RAPD, SCAR, microsatellite, minisatellite, isozyme and 5S rDNA markers},
	journal = {Theoretical and Applied Genetics},
	volume = {97},
	year = {1998},
	note = {doi:10.1007/s001220050996},
	month = {1998},
	pages = {1090 - 1103},
	author = {Barreneche, T. and Bodenes, C. and Lexer, C. and Trontin, J. and Fluch, S. and Streiff, R. and Plomion, C. and Roussel, G. and Steinkellner, H. and Burg, K. and Favre, J. and Glossl, J. and Kremer, A.}
}
@article {89,
	title = {Detection of genomic regions differentiating two closely related oak species Quercus petraea (Matt.) Liebl. and Quercus robur L},
	journal = {Heredity},
	volume = {78},
	year = {1997},
	month = {1997},
	pages = {433-444},
	abstract = {Genomic regions differentiating Quercus petraea and Quercus robur were detected by screening2800 PCR amplification products using random primers on 22 trees of each species sampled in 11 natural populations. Only two per cent of the amplified fragments exhibited significant frequency differences between the two species and none of them was specific to a species. The nucleotide divergence between the two species estimated with RAPD data was 0.5 per cent in the overall genome and increased to 3.3 per cent in the discriminant regions. Twenty-three informative fragments were cloned and partially sequenced. New primers were derived from these sequences to obtain Sequence Characterized Amplified Region (SCAR) fragments. Southern blot experiments indicated that the SCARs were generally in low copy number in the genome. A search for similarity between SCAR sequences and sequences contained in data banks revealed that three of them corresponded to known DNA sequences.},
	author = {Bod and Joandet, S. and Laigret, F. and Kremer, A.}
}
@article {84,
	title = {Genetic, morphological, ecological and phenological differentiation between Quercus petraea (Matt.) Liebl. and Quercus robur L. in a mixed stand of Northwest of France},
	journal = {Silvae Genetica},
	volume = {44},
	year = {1995},
	month = {1995},
	pages = {1 - 10},
	author = {Bacilieri, R. and Ducousso, A. and Kremer, A.}
}
@article {104,
	title = {Leaf morphological differentiation between Quercus robur and Quercus petraea is stable across western European mixed oak stands},
	journal = {Annals of Forest Science},
	volume = {59},
	year = {2002},
	month = {2002},
	pages = {777-787},
	abstract = {Leaf morphology was assessed in nine mixed oak stands (Quercus petraea and Q. robur) located in eight European countries.Exhaustive sampling was used in an area of each stand where the two species coexisted in approximately equal proportions (about 170 trees/species/ stand). Fourteen leaf characters were assessed on each of 5 to10 leaves collected from the upper part of each tree. Three multivariate statistical techniques (CDA, canonical discriminant analysis; PCA, principal component analysis; MCA, multiple correspondence analysis) were used in two different ways: first on the total set of leaves over all stands (global analysis) and second, separately within each stand (local analysis). There was a general agreement of the results among the statistical methods used and between the analyses conducted (global and local). The first synthetic variable derived by each multivariate analysis exhibited a clear and sharp bimodal distribution, with overlapping in the central part. The two modes were interpreted as the two species, and the overlapping region was interpreted as an area where the within-species variations were superimposed. There was no discontinuity in the distribution or no visible evidence of a third mode which would have indicated the existence of a third population composed of trees with intermediate morphologies. Based on petiole length and number of intercalary veins, an},
	author = {Kremer, A. and Dupouey, J. and Deans, J. and Cottrell, J. and Csaikl, U. and Finkeldey, R. and Espinel, S. and Jensen, J. and Kleinschmit, J. and Van Dam, B. and Ducousso, A. and Forrest, I. and Lopez de Heredia, U. and Lowe, A. and Tutkova, M. and Munro, R. and Steinhoff, S. and Badeau, V.}
}
@article {135,
	title = {Shared alleles in sympatric oaks: recurrent gene flow is a more parsimonious explanation than ancestral polymorphism},
	journal = {Molecular Ecology},
	volume = {15},
	year = {2006},
	month = {2006},
	pages = {2007-2012},
	author = {Lexer, C. and Kremer, A. and Petit, R.J.}
}
@article {38,
	title = {Chloroplast DNA variation of Quercus rubra L. in North America and comparison with other Fagaceae},
	journal = {Molecular Ecology},
	volume = {14},
	year = {2005},
	month = {2005},
	pages = {513-524},
	abstract = {Abstract Quercus rubra is one of the most important timber and ornamental tree species from eastern North America. It is a widespread species growing under variable ecological conditions. Chloroplast DNA variation was studied by PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) in 290 individuals from 66 populations sampled throughout the natural range. A total of 12 haplotypes were detected, with one found in 75\% of the trees. Population differentiation is relatively low (GST = 0.46), even when similarities between haplotypes are taken into account (NST = 0.50), pointing to a weak phylogeographical structure. Furthermore, no spatial structure of genetic diversity could be detected. The genetic differentiation increased northwards, reflecting the postglacial history of Q. rubra. The unusual aspect of this study was the low level of chloroplast DNA genetic differentiation in Q. rubra compared to that typically observed in other oak species. Palynological evidence indicates that during the last glacial maximum, Q. rubra had one major distribution range with populations located relatively far to the north, resulting in only modest movement northwards when climate improved, whereas European white oaks were largely restricted to the southern European peninsulas and experienced extensive movements during the postglacial period. The contrasted geographical features and levels of tree species richness of both continents might further explain why congeneric species sharing similar life history traits have genetic structures that are so different.},
	url = {http://www.blackwell-synergy.com/links/doi/10.1111/j.1365-294X.2005.02400.x/abs},
	author = {Magni, C.R. and Ducousso, A. and Caron, H. and Petit, R.J. and Kremer, A.}
}
@article {67,
	title = {Genome Scanning for Interspecific Differentiation Between Two Closely Related Oak Species [Quercus robur L. and Q. petraea (Matt.) Liebl.]},
	journal = {Genetics},
	volume = {168},
	year = {2004},
	month = {2004},
	pages = {1615-1626},
	abstract = {Interspecific differentiation values (GST) between two closely related oak species (Quercus petraea and Q. robur) were compiled across different studies with the aim to explore the distribution of differentiation at the genome level. The study was based on a total set of 389 markers (isozymes, AFLPs, SCARs, microsatellites, and SNPs) for which allelic frequencies were estimated in pairs of populations sampled throughout the sympatric distribution of the two species. The overall distribution of GST values followed an L-shaped curve with most markers exhibiting low species differentiation (GST < 0.01) and only a few loci reaching >10\% levels. Twelve percent of the loci exhibited significant GST deviations to neutral expectations, suggesting that selection contributed to species divergence. Coding regions expressed higher differentiation than noncoding regions. Among the 389 markers, 158 could be mapped on the 12 linkage groups of the existing Q. robur genetic map. Outlier loci with large GST values were distributed over 9 linkage groups. One cluster of three outlier loci was found within 0.51 cM; but significant autocorrelation of GST was observed at distances <2 cM. The size and distribution of genomic regions involved in species divergence are discussed in reference to hitchhiking effects and disruptive selection.},
	url = {http://www.genetics.org/cgi/content/abstract/168/3/1615},
	author = {Scotti-Saintagne, C. and Mariette, S. and Porth, I. and Goicoechea, P.G. and Barreneche, T. and Bodenes, C. and Burg, K. and Kremer, A.}
}
@article {117,
	title = {Species relative abundance and direction of introgression in oaks},
	journal = {Molecular Ecology},
	volume = {18},
	year = {2009},
	month = {2009},
	pages = {2228-2242},
	abstract = {Successful hybridisation and subsequent introgression lead to the transfer of genetic material across species boundaries. In this process, species relative abundance can play a significant role. If one species is less abundant than the other, its females will receive many heterospecific gametes, increasing mate-recognition errors and thus hybridisation rate. Moreover, first-generation hybrids will also more likely mate with the more abundant species, leading to asymmetric introgression. These predictions have important fundamental consequences, especially during biological invasions or when a rare species threatened by extinction is surrounded by individuals from a related species. However, experimental tests in nature of the importance of the relative abundance of each species on hybridisation dynamics remain scarce. We assess here the impact of species relative abundance on hybridisation dynamics among four species from the European white oak species complex. A total of 2107 oak trees were genotyped at 10 microsatellite markers and Bayesian clustering methods were used to identify reference trees of each species. We then used these reference trees to simulate purebred and hybrid genotypes to determine optimal threshold for genetic assignment. With this approach, we found widespread evidence of hybridisation between all studied oak species, with high occurrence of hybrids, varying from 11\% to 31\% according to stand and sampling strategies. This finding suggests that hybridisation is a common phenomenon that plays a significant role in evolution of this oak species complex. In addition, we demonstrate a strong impact of species abundance on both hybridisation rate and introgression directionality.},
	keywords = {Quercus},
	url = {http://dx.doi.org/10.1111/j.1365-294X.2009.04137.x},
	author = {Lepais, O. and Petit, R.J. and Guichoux, E. and Lavabre, J.E. and Alberto, F. and Kremer, A. and Gerber, S.}
}
