Authors
Juan Viruel, Nicolas Le Galliot, Samuel Pironon, Gonzalo Nieto Feliner, Jean‐Pierre Suc, Fatma Lakhal‐Mirleau, Marianick Juin, Marjorie Selva, Magda Bou Dagher Kharrat, Lahcen Ouahmane, Stefano La Malfa, Katia Diadema, Hervé Sanguin, Frédéric Médail, Alex Baumel
Publication date
2020
Journal
Journal of Biogeography
Volume
47
Pages
460–471
Description
Aim
Phylogeography of fruit trees is challenging due to recurrent exchanges between domesticated and wild populations. Here we tested the eastern refugium hypothesis (ERH) for the carob tree, Ceratonia siliqua, which supports its natural and domestication origins in the eastern Mediterranean and a feral origin in the west.
Location
Mediterranean basin.
Taxon
Ceratonia siliqua L., Leguminosae.
Methods
A phylogenetic reconstruction based on two nuclear and one plastid sequences was performed to estimate the divergence time between the carob tree and its sister species, Ceratonia oreothauma. Variation from four plastid regions and 17 nuclear microsatellite loci were used to decipher genetic structure in the carob tree and to test coalescent‐based models by an Approximate Bayesian computation (ABC) approach. We assessed our hypotheses by examining palaeobotanical records and hindcasting the …
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