Global connectivity patterns of the notoriously invasive mussel, Mytilus galloprovincialis Lmk using archived CO1 sequence data

Abstract

ObjectiveThe invasive mussel, Mytilus galloprovincialis has established invasive populations across the globe and in some regions, have completely displaced native mussels through competitive exclusion. The objective of this study was to elucidate global connectivity patterns of M. galloprovincialis strictly using archived cytochrome c oxidase 1 sequence data obtained from public databases. Through exhaustive mining and the development of a systematic workflow, we compiled the most comprehensive global CO1 dataset for M. galloprovincialis thus far, consisting of 209 sequences representing 14 populations. Haplotype networks were constructed and genetic differentiation was assessed using pairwise analysis of molecular variance.ResultsThere was significant genetic structuring across populations with significant geographic patterning of haplotypes. In particular, South Korea, South China, Turkey and Australasia appear to be the most genetically isolated populations. However, we were unable to recover a northern and southern hemisphere grouping for M. galloprovincialis as was found in previous studies. These results suggest a complex dispersal pattern for M. galloprovincialis driven by several contributors including both natural and anthropogenic dispersal mechanisms along with the possibility of potential hybridization and ancient vicariance events.Electronic supplementary materialThe online version of this article (10.1186/s13104-018-3328-3) contains supplementary material, which is available to authorized users.

Blue mussels of the Mytilus edulis species complex from South America: The application of species delimitation models to DNA sequence variation

“…Although the most congruent unilocus analysis (PTP: mean Ctax = 0.89) delimited in one species the blue mussels native to Argentina, Chile, Uruguay, Kerguelen Islands, New Zealand, Australia and Tasmania (see Fig 2 - groups d, e, f), the recovery of species from the General Mixed Yule Coalescent model (mean Ctax = 0.82) separated this clade into three species (d = Chile, part of Argentina, Uruguay and Kerguelen Islands; e = Australia; and f = New Zealand). Many previous studies have reported pronounced genetic differentiation between mussels from Australia/Tasmania and New Zealand (e.g., Gérard et al [ 18 ], Sanjuan et al [ 101 ], Pickett et al [ 102 ]). Therefore, the SDM results support the taxonomy described by Lamy [ 103 ] and Powell [ 104 ] who separated the Southwest Pacific Ocean mussels into two species: New Zealand animals were classified as Mytilus aoteanus Powell, 1958 (currently synonymous with M .…”

Comparison between single and multi-locus approaches for specimen identification in Mytilus mussels

“…The latter three are the most commercialized Mytilus species. Two other Chilean populations were sampled from locations where hybrid individuals have been found: Quillaipe (MCh-2) (n = 49) on the Gulf of Reloncaví 63 and the northern coast of the Gulf of Arauco (MG-2) (n = 50), where the Mediterranean mussel ( M. galloprovincialis ) has also been found 30,64 . Detailed sample data is included in Supplementary Information (Table S1).…”

“…Furthermore, the shell is typically removed from processed foods, further hampering appearance-based identification 23 . Alternatively, mussels are characterized using genetic markers, with approaches relying on allozymes 24–27 , sequencing of mitochondrial genes 2,28–30 and PCR-based DNA markers, such as amplified fragment length polymorphisms (AFLP) 22 , random amplification of polymorphic DNA (RAPD) 31 , forensically informative nucleotide sequencing (FINS) 23 and fragment length polymorphisms (FLP). To enhance the specificity of FLP analysis, an enzymatic restriction step can be added to produce restriction fragment length polymorphism (RFLP) markers.…”

Evaluation of translocation impacts on genetic patterns in farmed and naturalized populations of Mytilus galloprovincialis along the China coast: clues from mitochondrial cytochrome c oxidase I sequences

“…The capacity of the mitochondrial DNA (mtDNA) cytochrome c oxidase I (COI) gene to reveal ongoing genetic interactions between populations has been confirmed in extensive marine mollusks (Guo et al, 2015;Mao et al, 2011;Ni et al, 2012aNi et al, , 2012bWang et al, 2017), including M. galloprovincialis (Gerard et al, 2008;Han et al, 2017;Pickett and David, 2018). The present study compared three populations from intensive sampling along the China coast: farmed, naturalized adjacent to the farm, and isolated naturalized populations by amplifying COI sequences.…”