Genetic flow directionality and geographical segregation in Cymodocea Nodosa genetic diversity network

Masucci, A. Paolo; Arnaud-Haond, Sophie; Eguiluz, Victor M.; Hernandez-Garcia, Emilio; Serrao, Ester A.
EPJ Data Science 1, 11 (1-11) (2012)

We analyse a large data set of genetic markers obtained from
populations of Cymodocea nodosa, a marine plant
occurring from the East Mediterranean to the Iberian-African
coasts in the Atlantic Ocean. We fully develop and test a
recently introduced methodology to infer the directionality of
gene flow based on the concept of geographical segregation.
Using the Jensen-Shannon divergence, we are able to extract a
directed network of gene flow describing the evolutionary
patterns of Cymodocea nodosa. In particular we recover
the genetic segregation that the marine plant underwent during
its evolution. The results are confirmed by natural evidence
and are consistent with an independent cross analysis.


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