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Maternal genomic variability of the wild boar (Sus scrofa) reveals the uniqueness of East-Caucasian and Central Italian populations.


ABSTRACT: The phylogeography of the European wild boar was mainly determined by postglacial recolonization patterns from Mediterranean refugia after the last ice age. Here we present the first analysis of SNP polymorphism within the complete mtDNA genome of West Russian (n = 8), European (n = 64), and North African (n = 5) wild boar. Our analyses provided evidence of unique lineages in the East-Caucasian (Dagestan) region and in Central Italy. A phylogenetic analysis revealed that these lineages are basal to the other European mtDNA sequences. We also show close connection between the Western Siberian and Eastern European populations. Also, the North African samples were clustered with the Iberian population. Phylogenetic trees and migration modeling revealed a high proximity of Dagestan sequences to those of Central Italy and suggested possible gene flow between Western Asia and Southern Europe which was not directly related to Northern and Central European lineages. Our results support the presence of old maternal lineages in two Southern glacial refugia (i.e., Caucasus and the Italian peninsula), as a legacy of an ancient wave of colonization of Southern Europe from an Eastern origin.

SUBMITTER: Khederzadeh S 

PROVIDER: S-EPMC6745674 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Maternal genomic variability of the wild boar (<i>Sus scrofa</i>) reveals the uniqueness of East-Caucasian and Central Italian populations.

Khederzadeh Saber S   Kusza Szilvia S   Huang Cui-Ping CP   Markov Nickolay N   Scandura Massimo M   Babaev Elmar E   Šprem Nikica N   Seryodkin Ivan V IV   Paule Ladislav L   Esmailizadeh Ali A   Xie Hai-Bing HB   Zhang Ya-Ping YP  

Ecology and evolution 20190727 17


The phylogeography of the European wild boar was mainly determined by postglacial recolonization patterns from Mediterranean refugia after the last ice age. Here we present the first analysis of SNP polymorphism within the complete mtDNA genome of West Russian (<i>n</i> = 8), European (<i>n</i> = 64), and North African (<i>n</i> = 5) wild boar. Our analyses provided evidence of unique lineages in the East-Caucasian (Dagestan) region and in Central Italy. A phylogenetic analysis revealed that the  ...[more]

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