|Appears in Collections:||Biological and Environmental Sciences Journal Articles|
|Peer Review Status:||Refereed|
|Title:||Searching for the genetic footprint of ancient and recent hybridization|
|Citation:||Vallejo-Marín M (2018) Searching for the genetic footprint of ancient and recent hybridization. [Commentary on: Jordan, C. Y., Lohse, K., Turner, F., Thomson, M., Gharbi, K., & Ennos, R.A. (2018). Maintaining their genetic distance: Little evidence forintrogression between widely hybridising species of Geum with con-trasting mating systems. Molecular Ecology, 27, 1214–1228.] Molecular Ecology, 27 (5), pp. 1095-1097. https://doi.org/10.1111/mec.14444.|
|Abstract:||Determining the long‐term consequences of hybridization remains a central quest for evolutionary biologists. A particular challenge is to establish whether and to what extent widespread hybridization results in gene flow (introgression) between parental taxa. In this issue of Molecular Ecology, Jordan et al. (2018) search for evidence of gene flow between two closely related species of Geum (Rosaceae), which hybridize readily in contemporary populations and where hybrid swarms have been recorded for at least 200 years (Ruhsam, Hollingsworth, & Ennos, 2013). The authors find mixed evidence of ancient introgression when analysing allopatric populations. Intriguingly, when analysing populations of a region where the two species occur either mixed in the same population or in close proximity, and where hybrids are presently common, Jordan and colleagues find that the majority of randomly sampled individuals analysed (92/96) show no evidence of introgression (defined as individuals with admixture coefficients of|
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