@article{fdi:010046000, title = {{P}hylogeography of the common ragworm {H}ediste diversicolor ({P}olychaeta : {N}ereididae) reveals cryptic diversity and multiple colonization events across its distribution}, author = {{V}irgilio, {M}. and {F}auvelot, {C}{\'e}cile and {C}ostantini, {F}. and {A}bbiati, {M}. and {B}ackeljau, {T}.}, editor = {}, language = {{ENG}}, abstract = {{P}revious studies on the common ragworm {H}ediste diversicolor ({P}olychaeta: {N}ereididae) revealed a marked genetic fragmentation across its distribution and the occurrence of sibling taxa in the {B}altic {S}ea. {T}hese results suggested that the phylogeographic patterns of {H}. diversicolor could reflect interactions between cryptic differentiation and multiple colonization events. {T}his study aims to describe the large-scale genetic structuring of {H}. diversicolor and to trace the phylogeographic origins of the genetic types described in the {B}altic {S}ea. {S}amples of {H}. diversicolor (2 < n < 28) were collected at 16 locations across the {NE} {A}tlantic coasts of {E}urope and {M}orocco and in the {M}editerranean, {B}lack and {C}aspian {S}eas and sequenced at two mitochondrial gene fragments ({COI} and cytb, 345 and 290 bp, respectively). {B}ayesian analyses revealed deep phylogeographic splits yielding three main clades corresponding to populations (i) from the {NE} {A}tlantic coasts (from {G}ermany to {M}orocco) and from part of the {W}estern {M}editerranean, (ii) from the {M}editerranean {S}ea, and (iii) from the {B}lack and {C}aspian {S}eas. {T}hese clades are further divided in well-supported subclades including populations from different regions of {NE} {A}tlantic and {M}editerranean (i.e. {P}ortugal/{M}orocco, {W}estern {M}editerranean, {A}driatic {S}ea). {T}he {B}altic {S}ea comprises three sympatric lineages sharing a common evolutionary history with populations from {NE} {A}tlantic, {W}estern {M}editerranean and {B}lack/{C}aspian {S}eas, respectively. {H}ence, the current patterns of genetic structuring of {H}. diversicolor appear as the result of allopatric isolation, multiple colonization events and possible adaptation to local environmental conditions.}, keywords = {{B}altic {S}ea ; cryptic speciation ; {H}ediste diversicolor ; mt{DNA} ; phylogeography}, booktitle = {}, journal = {{M}olecular {E}cology}, volume = {18}, numero = {9}, pages = {1980--1994}, ISSN = {0962-1083}, year = {2009}, DOI = {10.1111/j.1365-294{X}.2009.04170.x}, URL = {https://www.documentation.ird.fr/hor/fdi:010046000}, }