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Time to get moving:assisted gene flow offorest trees Sally N. AitkenJordan B. Bemmels2015 год

Time to get moving: assisted gene flow of forest trees
review

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Аннотация: Abstract Geographic variation in trees has been investigated since the mid‐18th century. Similar patterns of clinal variation have been observed along latitudinal and elevational gradients in common garden experiments for many temperate and boreal species. These studies convinced forest managers that a ‘local is best’ seed source policy was usually safest for reforestation. In recent decades, experimental design, phenotyping methods, climatic data and statistical analyses have improved greatly and refined but not radically changed knowledge of clines. The maintenance of local adaptation despite high gene flow suggests selection for local adaptation to climate is strong. Concerns over maladaptation resulting from climate change have motivated many new genecological and population genomics studies; however, few jurisdictions have implemented assisted gene flow (AGF), the translocation of pre‐adapted individuals to facilitate adaptation of planted forests to climate change. Here, we provide evidence that temperate tree species show clines along climatic gradients sufficiently similar for average patterns or climate models to guide AGF in the absence of species‐specific knowledge. Composite provenancing of multiple seed sources can be used to increase diversity and buffer against future climate uncertainty. New knowledge will continue to refine and improve AGF as climates warm further.
Год издания: 2015
Авторы: Sally N. Aitken, Jordan B. Bemmels
Издательство: Wiley
Источник: Evolutionary Applications
Ключевые слова: Genetic diversity and population structure, Plant and Fungal Interactions Research, Genetic Mapping and Diversity in Plants and Animals
Другие ссылки: Evolutionary Applications (PDF)
Evolutionary Applications (HTML)
Europe PMC (PubMed Central) (PDF)
Europe PMC (PubMed Central) (HTML)
PubMed Central (HTML)
PubMed (HTML)