Mitochondrial Dna Variation in the Eastern Pondmussel, Ligumia nasuta (Bivalvia: Unionoida), in the Great Lakes Region

Scott, Mariah W.; Begley, Matthew T.; Krebs, Robert A.; Zanatta, David T.

doi:10.31931/fmbc.v17i2.2014.60-67

Cited by 4 publications

(13 citation statements)

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“…In the western basin of Lake Erie, S. nasutus was consistently found to be the second or third most common unionid species in historical surveys (Nalepa, Manny, Roth, Mozley, & Schloesser, ). Currently, only remnant populations are present across its previous range in the Great Lakes (COSEWIC, ; Michigan Natural Features Inventory, ; Scott, Begley, Krebs, & Zanatta, ; Zanatta et al, ). Despite the large number of historical populations and apparent ease of dispersal into new habitats, the decline and loss of S. nasutus populations is cause for conservation concern.…”

Section: Introductionmentioning

confidence: 99%

“…A previous study on the phylogeography of S. nasutus using mitochondrial DNA sequences found limited genetic variation within the Great Lakes region. Scott et al () compared the within‐species genetic diversity of two maternally inherited mitochondrial DNA gene regions, finding low genetic diversity within the Great Lakes region. This result suggested that the source population was a single, small founder group or a larger group with low genetic variation (Scott et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Scott et al () compared the within‐species genetic diversity of two maternally inherited mitochondrial DNA gene regions, finding low genetic diversity within the Great Lakes region. This result suggested that the source population was a single, small founder group or a larger group with low genetic variation (Scott et al, ). The results of the study indicated that the entire Great Lakes region could be treated as a single population for conservation management purposes (Scott et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…This result suggested that the source population was a single, small founder group or a larger group with low genetic variation (Scott et al, ). The results of the study indicated that the entire Great Lakes region could be treated as a single population for conservation management purposes (Scott et al, ). The study solely analysed mitochondrial DNA, which can only effectively distinguish among management units if enough haplotypes have been identified (Moritz, ).…”

Section: Introductionmentioning

confidence: 99%

“…The study solely analysed mitochondrial DNA, which can only effectively distinguish among management units if enough haplotypes have been identified (Moritz, ). Although Scott et al () were able to determine the evolutionary history of S. nasutus on a broader scale, additional fine‐scale genetic analyses are needed to build upon those findings, to properly inform conservation and restoration efforts, to understand the phylogeography of the species, and to determine whether a genetic bottleneck or a founder effect has occurred.…”

Section: Introductionmentioning

confidence: 99%

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Population structure, genetic diversity, and colonization history of the eastern pondmussel, Sagittunio nasutus, in the Great Lakes drainage

Scott

Morris

Zanatta

2020

Aquatic Conservation

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1. The eastern pondmussel, Sagittunio nasutus (Bivalvia: Unionida), has declined in abundance and distribution in eastern North America over the last few decades.The declines are predominantly the result of infestation by invasive dreissenid mussels and changes in habitat. The species is now considered imperilled across large portions of its distribution, especially in the Laurentian Great Lakes region.2. The genetic diversity and structure of the remnant populations in the Great Lakes region were assessed using 10 newly developed microsatellite DNA loci for S. nasutus. Understanding the remaining populations can inform future management projects and determine whether the remnant populations have experienced a genetic bottleneck or a founder effect. We hope that this will inform the conservation of other species in regions founded by, and isolated from, a more genetically diverse source population or with disjointed geographical distributions.3. Focusing on the Great Lakes region, samples (n = 428) from 62 collection sites in 28 water bodies were collected. Across the locations sampled for S. nasutus 11 genetic populations were identified, with significant genetic differentiation among them. The genetic structure of the species was assessed, with genetic similarities among populations compared and with geographical routes of colonization and gene flow evaluated. 4. Initial colonization from the Atlantic coast into Lake Erie and Lake Ontario is evident, followed by colonization events into nearby inland rivers and lakes. Analyses found evidence of inbreeding in all but one population and evidence of past genetic bottlenecks or strong founder effects in all but four populations. This study deepens our understanding of the genetic past and present of this imperilled species, providing conservation suggestions for the future management of the species. K E Y W O R D S founder effects, genetic bottlenecks, Ligumia nasuta, management units, microsatellite DNA, phylogeography, population structure, rescue effect, Sagittunio nasutus, Unionidae

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Population structure, genetic diversity, and colonization history of the eastern pondmussel, Sagittunio nasutus, in the Great Lakes drainage

Scott

Morris

Zanatta

2020

Aquatic Conservation

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An evaluation of the genetic structure of mapleleaf mussels (Quadrula quadrula) in the Lake Erie watershed

Paterson

Griffith

Krebs

et al. 2015

Journal of Great Lakes Research

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Genetic structure and diversity of Nodularia douglasiae (Bivalvia: Unionida) from the middle and lower Yangtze River drainage

et al. 2017

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The Yangtze River drainage in China is among the most species rich rivers for freshwater mussels (order Unionida) on Earth with at least 68 species known. The freshwater mussels of the Yangtze River face a variety of threats with indications that species are declining in abundance and area of occupancy. This study represents the first analyses of the genetic structure and diversity for the common and widespread freshwater mussel Nodularia douglasiae based on microsatellite DNA genotypes and mitochondrial DNA sequences. Phylogenetic analysis a fragment of the COI mitochondrial gene indicated that N. douglasiae collected from across the middle and lower Yangtze River drainage are monophyletic with N. douglasiae from Japan, Russia, and South Korea. The results of the analysis of both the mtDNA and microsatellite datasets indicated that the seven collection locations of N. douglasiae in the middle and lower Yangtze River drainage showed high genetic diversity, significant genetic differentiation and genetic structure, and stable population dynamics over time. Moreover, we found that the connections among tributaries rivers and lakes in the Yangtze River drainage were important in maintaining gene flow among locations that N. douglasiae inhabits. An understanding of the genetic structure and diversity of a widespread species like N. douglasiae could be used as a surrogate to better understand the populations of other freshwater mussel species that are more rare in the Yangtze River drainage. At the same time, these results could provide a basis for the protection of genetic diversity and management of unionid mussels diversity and other aquatic organisms in the system.

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Mitochondrial Dna Variation in the Eastern Pondmussel, Ligumia nasuta (Bivalvia: Unionoida), in the Great Lakes Region

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 4 publications

References 20 publications

Population structure, genetic diversity, and colonization history of the eastern pondmussel, Sagittunio nasutus, in the Great Lakes drainage

Population structure, genetic diversity, and colonization history of the eastern pondmussel, Sagittunio nasutus, in the Great Lakes drainage

An evaluation of the genetic structure of mapleleaf mussels (Quadrula quadrula) in the Lake Erie watershed

Genetic structure and diversity of Nodularia douglasiae (Bivalvia: Unionida) from the middle and lower Yangtze River drainage

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