TY - JOUR

T1 - Molecular lineage diversity and inter-oceanic biogeographical history in Hiatella (Mollusca, Bivalvia)

AU - Laakkonen, H.M.

AU - Strelkov, P.

AU - Väinölä, R.

PY - 2015

Y1 - 2015

N2 - Hiatella is one of the most widespread marine bivalve genera, occurring in diverse habitats from the temperate to polar latitudes in both hemispheres, and in fossil strata since almost 150 Myr ago. Despite variation in some biological and morphological traits, characters to resolve the current systematic structure consistently across the range of the genus are not known: all samples are often referred to a single species, Hiatella arctica (L.). Exploring the systematics of Hiatella using partial sequences of three genes (mitochondrial COI, and the nuclear ANT and 28S rRNA), we find high diversity of deep lineages (11–22% p-distance in COI), and identify at least 13 distinct taxa both by heuristic criteria (congruence of the nuclear and mtDNA data) and by coalescence-based analyses. At several localities, two or three of these cryptic species were found in sympatry. In the framework of previous fossil evidence and of hypotheses of paleoceanographical connections, scenarios of the phylogeny and biogeographical

AB - Hiatella is one of the most widespread marine bivalve genera, occurring in diverse habitats from the temperate to polar latitudes in both hemispheres, and in fossil strata since almost 150 Myr ago. Despite variation in some biological and morphological traits, characters to resolve the current systematic structure consistently across the range of the genus are not known: all samples are often referred to a single species, Hiatella arctica (L.). Exploring the systematics of Hiatella using partial sequences of three genes (mitochondrial COI, and the nuclear ANT and 28S rRNA), we find high diversity of deep lineages (11–22% p-distance in COI), and identify at least 13 distinct taxa both by heuristic criteria (congruence of the nuclear and mtDNA data) and by coalescence-based analyses. At several localities, two or three of these cryptic species were found in sympatry. In the framework of previous fossil evidence and of hypotheses of paleoceanographical connections, scenarios of the phylogeny and biogeographical

U2 - 10.1111/zsc.12105

DO - 10.1111/zsc.12105

M3 - Article

VL - 44

SP - 383

EP - 402

JO - Zoologica Scripta

JF - Zoologica Scripta

SN - 0300-3256

IS - 4

ER -