<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Renaud Ioos</style></author><author><style face="normal" font="default" size="100%">Axelle Andrieux</style></author><author><style face="normal" font="default" size="100%">BenoÓt MarÁais</style></author><author><style face="normal" font="default" size="100%">Pascal Frey</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Genetic characterization of the natural hybrid species Phytophthora alni as inferred from nuclear and mitochondrial DNA analyses</style></title><secondary-title><style face="normal" font="default" size="100%">Fungal Genetics and Biology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Interspecific hybridization</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.sciencedirect.com/science/article/B6WFV-4JS1TK3-1/2/aead0efc6dc22a393ebadec5b3211855</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">7</style></number><volume><style face="normal" font="default" size="100%">43</style></volume><pages><style face="normal" font="default" size="100%">511 - 529</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The different subspecies of &lt;em&gt;Phytophthora alni, P. alni subsp. alni&lt;/em&gt; (Paa), &lt;em&gt;P. alni subsp. uniformis (Pau)&lt;/em&gt;, and &lt;em&gt;P. alni subsp. multiformis&lt;/em&gt; (Pam), are recent and widespread pathogens of alder in Europe. They are believed to be a group of emergent heteroploid hybrids between two phylogenetically close &lt;em&gt;Phytophthora&lt;/em&gt; species. Nuclear and mitochondrial DNA analyses were performed, using a broad collection of &lt;em&gt;P. alni&lt;/em&gt; and two closely related species, &lt;em&gt;P. cambivora&lt;/em&gt; and &lt;em&gt;P. fragariae&lt;/em&gt;. (Paa) possesses three different alleles for each of the nuclear genes we studied, two of which are present in Pam as well, whereas the third matches the single allele present in Pau. Moreover, Paa displays common mtDNA patterns with both Pam and Pau. A combination of the data suggests that Paa may have been generated on several occasions by hybridization between Pam and Pau, or their respective ancestors. Pau might have &lt;em&gt;P. cambivora&lt;/em&gt; as a species ancestor, whereas Pam seems to have either been generated itself by an ancient reticulation or by autopolyploidization.&lt;/p&gt;</style></abstract></record></records></xml>