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"url": "https://figshare.com/articles/Climatic_factors_genetic_structure_and_phenotypic_variation_in_English_yew_Taxus_baccata_L_/6025643/1",
"additionalType": "Poster",
"name": "Climatic factors, genetic structure and phenotypic variation in English yew (Taxus baccata L.)",
"author": [
{
"name": "Maria Mayol",
"givenName": "Maria",
"familyName": "Mayol",
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},
{
"name": "Elisa Berganzo",
"givenName": "Elisa",
"familyName": "Berganzo",
"@type": "Person"
},
{
"name": "Concetta Burgarella",
"givenName": "Concetta",
"familyName": "Burgarella",
"@type": "Person",
"@id": "https://orcid.org/0000-0003-4522-4297"
},
{
"name": "Santiago C. González-Martínez",
"givenName": "Santiago C.",
"familyName": "González-Martínez",
"@type": "Person"
},
{
"name": "Delphine Grivet",
"givenName": "Delphine",
"familyName": "Grivet",
"@type": "Person"
},
{
"name": "Giovanni G. Vendramin",
"givenName": "Giovanni G.",
"familyName": "Vendramin",
"@type": "Person"
},
{
"name": "Lucie Vincenot",
"givenName": "Lucie",
"familyName": "Vincenot",
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{
"name": "Miquel Riba",
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"description": "Influence of climatic factors on genetic structure and phenotypic variation in English yew (Taxus baccata L.) Conference \"Adapting to global change in the Mediterranean hotspot\" (Seville, 18-20 September 2013)
Mediterranean forests constitute long-term reservoirs of biodiversity and adaptive potential. As compared with their central or northern European counterparts, Mediterranean forests are characterized by highly heterogeneous and fragmented environments, providing ideal models to investigate the interaction between drift, natural selection and gene flow on the patterns of local adaptation.
Some conifers like Mediterranean pines are becoming new model systems to study genetic adaptation to heterogeneous environments, due to their large undomesticated populations and remarkable phenotypic differences in adaptive traits across populations despite high levels of gene flow. However, other conifers with different demography and life-history might respond in different way. English yew (Taxus baccata L.) is a dioecious long-lived gymnosperm currently found throughout most of the European continent, occurring in a great diversity of habitats and plant community types. Unlike other widespread conifers, yew is often found forming small and isolated populations. Many Mediterranean populations also show highly irregular size/age structures and biased sex ratios, revealing recent demographic bottlenecks, as well as highly structured patterns of neutral genetic diversity. Despite small population sizes and reduced genetic diversity, remarkable phenotypic differences exist in many traits as revealed by common garden experiments, suggesting the existence of local adaptations.
To further investigate the relative importance of selective and non-selective processes on genetic and phenotypic variability of English yew, we analyzed neutral genetic diversity at the whole distribution range and evaluated the relative importance of current and past climatic conditions in the observed patterns of genetic variation. In addition, we measured potentially adaptive traits in a common environment, and related observed differences with climatic conditions. Our results suggest that climate, in particular temperature, has acted as an important selective pressure on English yew, explaining regional differences in performance (growth, phenology) and functional (taxane production) traits. Temperature also seems involved in the independent evolution of two genetic pools at the species distribution level.
",
"license": "https://creativecommons.org/licenses/by/4.0/legalcode",
"keywords": "60411 Population, Ecological and Evolutionary Genetics, FOS: Biological sciences, FOS: Biological sciences",
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"dateCreated": "2018-03-25",
"datePublished": "2018",
"dateModified": "2018-03-25",
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