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Exploring species limits in two closely related Chinese oaks

hal.structure.identifierChinese Academy of Forestry
hal.structure.identifierBeijing Forestry University
dc.contributor.authorZENG, Yan-Fei
hal.structure.identifierBeijing Forestry University
dc.contributor.authorLIAO, Wan-Jin
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPETIT, Remy
hal.structure.identifierBeijing Forestry University
dc.contributor.authorZHANG, Da-Yong
dc.date.accessioned2022-10-12T12:42:19Z
dc.date.available2022-10-12T12:42:19Z
dc.date.issued2010
dc.identifier.issn1932-6203
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/157110
dc.description.abstractEnBackground. The species status of two closely related Chinese oaks, Quercus liaotungensis and Q. mongolica, has been called into question. The objective of this study was to investigate the species status and to estimate the degree of introgression between the two taxa using different approaches. Methodology/Principal Findings. Using SSR (simple sequence repeat) and AFLP (amplified fragment length polymorphism) markers, we found that interspecific genetic differentiation is significant and higher than the differentiation among populations within taxa. Bayesian clusters, principal coordinate analysis and population genetic distance trees all classified the oaks into two main groups consistent with the morphological differentiation of the two taxa rather than with geographic locations using both types of markers. Nevertheless, a few individuals in Northeast China and many individuals in North China have hybrid ancestry according to Bayesian assignment. One SSR locus and five AFLPs are significant outliers against neutral expectations in the interspecific FST simulation analysis, suggesting a role for divergent selection in differentiating species. Main Conclusions/Significance. All results based on SSRs and AFLPs reached the same conclusion: Q. liaotungensis and Q. mongolica maintain distinct gene pools in most areas of sympatry. They should therefore be considered as discrete taxonomic units. Yet, the degree of introgression varies between the two species in different contact zones, which might be caused by different population history or by local environmental factors.
dc.language.isoen
dc.publisherPublic Library of Science
dc.title.enExploring species limits in two closely related Chinese oaks
dc.typeArticle de revue
dc.identifier.doi10.1371/journal.pone.0015529
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalPLoS ONE
bordeaux.page15 p.
bordeaux.volume5
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue11
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02667100
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02667100v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=PLoS%20ONE&rft.date=2010&rft.volume=5&rft.issue=11&rft.spage=15%20p.&rft.epage=15%20p.&rft.eissn=1932-6203&rft.issn=1932-6203&rft.au=ZENG,%20Yan-Fei&LIAO,%20Wan-Jin&PETIT,%20Remy&ZHANG,%20Da-Yong&rft.genre=article


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