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Direction and extent of organelle DNA introgression between two spruce species in the Qinghai-Tibetan Plateau

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierLanzhou University
dc.contributor.authorDU, Fang
hal.structure.identifierLanzhou University
dc.contributor.authorPENG, Xiao Li
hal.structure.identifierLanzhou University
dc.contributor.authorLIU, Jian Quan
hal.structure.identifierUppsala University
hal.structure.identifierChinese Academy of Sciences [CAS]
dc.contributor.authorLASCOUX, Martin
hal.structure.identifierUniversity of Illinois System
dc.contributor.authorHU, Feng Sheng
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPETIT, Remy
dc.date.issued2011
dc.identifier.issn0028-646X
dc.description.abstractEn• A recent model has shown that, during range expansion of one species in a territory already occupied by a related species, introgression should take place preferentially from the resident species towards the invading species and genome components experiencing low rates of gene flow should introgress more readily than those experiencing high rates of gene flow. • Here, we use molecular markers from two organelle genomes with contrasted rates of gene flow to test these predictions by examining genetic exchanges between two morphologically distinct spruce Picea species growing in the Qinghai-Tibetan Plateau. • The haplotypes from both mitochondrial (mt) DNA and chloroplast (cp) DNA cluster into two distinct lineages that differentiate allopatric populations of the two species. By contrast, in sympatry, the species share the same haplotypes, suggesting interspecific genetic exchanges. As predicted by the neutral model, all sympatric populations of the expanding species had received their maternally inherited mtDNA from the resident species, whereas for paternally inherited cpDNA introgression is more limited and not strictly unidirectional. • Our results underscore cryptic introgressions of organelle DNAs in plants and the importance of considering rates of gene flow and range shifts to predict direction and extent of interspecific genetic exchanges.
dc.language.isoen
dc.publisherWiley
dc.subjectcpdna
dc.subjectmtdna
dc.subjectspruce
dc.subjectrange expansion
dc.subjectplant sciences
dc.subject.enintrogression
dc.subject.engene flow
dc.title.enDirection and extent of organelle DNA introgression between two spruce species in the Qinghai-Tibetan Plateau
dc.typeArticle de revue
dc.identifier.doi10.1111/j.1469-8137.2011.03853.x
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Phytopathologie et phytopharmacie
bordeaux.journalNew Phytologist
bordeaux.page1024-1033
bordeaux.volume192
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-02651490
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02651490v1
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