@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 {146,
	title = {Gene flow and hybridisation in a mixed oak forest (Quercus pyrenaica Willd. and Quercus petraea (Matts.) Liebl.) in central Spain},
	journal = {Heredity},
	volume = {95},
	number = {6},
	year = {2005},
	pages = {457-465},
	abstract = {Oaks are long-standing models for the study of gene flow and hybridisation. Temperate (Quercus petraea) and sub-Mediterranean (Quercus pyrenaica) oaks coexist in central Spain, showing remarkable differences in population size and structure. Q. petraea has a scattered distribution in central Spain, where it is at one of the southernmost limits of its range, and forms low-density stands; in contrast, Q. pyrenaica is widespread in the region. We selected a mixed population of the two species (approx13 ha, 176 adults and 96 saplings) to compare the patterns of gene flow within each species and the extent of introgression between them. Using five nuclear microsatellite markers, we performed a parentage analysis and found considerable immigration from outside the stand (approx38\% for Q. petraea and approx34\% for Q. pyrenaica), and estimated average seed-dispersal distances of 42 and 14 m for Q. petraea and Q. pyrenaica, respectively. Introgression between species was also estimated using our microsatellite battery. First, we developed a multivariate discriminant approach and, second, we compared our results with a widely used clustering method (STRUCTURE). Both analyses were consistent with a low level of introgression between Q. petraea and Q. pyrenaica. Indeed, only 15 adult trees, approx8.5\%, were identified as putative hybrids when both methods of analysis were combined. Hybrids may be most common in contact zones due merely to physical proximity.},
	keywords = {gene flow, genetic differentiation, hybrid zones, introgression, microsatellites, Quercus},
	author = {Valbuena-Carabana, M. and Gonzalez-Martinez, S. C. and Sork, V.L. and Collada, C. and SOTO, A. and Goicoechea, P.G. and Gil, L.}
}
@article {110,
	title = {Two-generation analysis of pollen flow across a landscape V: A stepwise approach for extracting factors contributing to pollen structure},
	journal = {Heredity},
	volume = {92},
	year = {2004},
	note = {200400144680ArticleEnglish},
	month = {2004},
	pages = {204-211},
	abstract = {Patterns of pollen dispersal are central to both the ecology and evolution of plant populations. However, the mechanisms controlling either the dispersal process itself or our estimation of that process may be influenced by site -specific factors such as local forest structure and nonuniform adult genetic structure. Here, we present an extension of the AMOVA model applied to the recently developed TWOGENER analysis of pollen pool structure. This model, dubbed the Stepwise AMOVA (StAMOVA), focuses on determining to what extent ecological, demographic, and/or environmental factors influence the observed genetic variation in spatially separated pollen pools. The analysis is verified for efficacy, using an extensive battery of simulations, illustrating: (1) how nonuniform adult genetic structure influences the differentiation of spatially separated pollen pools, and (2) how effectively the Stepwise analysis performs in carrying out the appropriate corrections. Finally, the model is applied to a Quercus alba data set, from which we have prior evidence that the adult genetic structure is nonuniformly distributed across the sampling landscape. From this data set, we show how the Stepwise model can be applied to remove the effects of spatial adult genetic structure on pollen pool differentiation and contrast these results with those derived from the original TWOGENER analysis.},
	keywords = {[26070-] Fagaceae-, AMOVA-model: mathematical-and-computer-techniques, Angiospermae-, Dicots-, Dicotyledones-, Fagaceae-: Angiosperms-, gene-flow, Genetics-, Mathematical-Biology: Computational-Biology, Plantae-, Plants-, pollen-: reproductive-system, Quercus-alba (Fagaceae-): species-, Reproduction-, Spermatophyta-, Spermatophytes-, Vascular-Plants},
	author = {Dyer, R.-J. and Westfall, R.-D. and Sork, V.-L. and Smouse, P.-E.}
}
