Gene flow patterns of the euphausiid, <i>Meganyctiphanes norvegica</i>, in the NW Atlantic based on mtDNA sequences for cytochrome <i>b</i> and cytochrome oxidase I

Bucklin, Ann; Smolenack, Sara B.; Bentley, A. M.; Wiebe, Peter H.

doi:10.1093/plankt/19.11.1763

Cited by 49 publications

(34 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Evidence of restricted gene flow in Meganyctiphanes norvegica clearly emerged from this work. This result is in line with previous studies (Bucklin et al 1997, although genetic homogeneity among populations of this species has also been reported (Sundt & Fevolden 1996). The latter observation, however, regarded samples that were collected within a limited geographic range of the NE sector of the Atlantic Ocean, which might indeed belong to an homogeneous gene pool.…”

Section: Discussionsupporting

confidence: 92%

“…Genetic differentiation among populations of Meganyctiphanes norvegica was documented by previous investigations (Bucklin et al 1997. The present study was aimed at providing a more detailed picture of the genetic variability and differentiation among populations across almost the entire natural distribution area of the species.…”

Section: Discussionmentioning

confidence: 81%

“…This study builds upon 2 previous population genetic studies of this species by Bucklin et al (1997) and . In the first study, mtDNA sequence variation revealed significant structuring of populations at trans-ocean basin scales.…”

Section: Introductionmentioning

confidence: 87%

“…In the NW Atlantic, Meganyctiphanes norvegica is known to reproduce in the Gulf of St. Lawrence, in the Gulf of Maine and on the Scotian Shelf, although Herman et al (1991) concluded that Scotian Shelf plankton biomass production is enriched by transport from the St. Lawrence Gulf (see Bucklin et al 1997) (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

“…In the first study, mtDNA sequence variation revealed significant structuring of populations at trans-ocean basin scales. Bucklin et al (1997) concluded that (1) genetic heterogeneity among samples reflected high levels of molecular genetic diversity, and perhaps, under-sampling of the population genetic 226 Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica

Papetti¹,

Zane²,

Bortolotto³

et al. 2005

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Meganyctiphanes norvegica (M. Sars 1856), the northern krill, is the largest and most abundant euphausiid species in the northern hemisphere, where it represents a key component of many pelagic communities. Although planktonic, krill could be considered a nektonic organism, as it is capable of active movements. This behaviour may be adaptive, because it allows these organisms to maintain their geographic position, leading to stable population structure, despite being continuously exposed to the heterogeneous oceanic conditions. By means of single-strand conformation polymorphism and DNA sequencing, we analyzed allelic variation of the Subunit 1 of NADH dehydrogenase mtDNA locus in 23 populations of the northern krill Meganyctiphanes norvegica, from 15 locations spanning the distribution range of the species. Analysis of the data indicated that the genetic structure, as revealed by analysis of population samples collected at the same site in consecutive years, was stable during that sampling period. Our results revealed the existence of 4 genetically and geographically distinct gene pools of M. norvegica, 2 occurring in the NE Atlantic ('northern' NE Atlantic and 'southern' NE Atlantic), 1 in the NW Atlantic, and 1 in the Mediterranean (Ligurian) Sea.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica

Papetti¹,

Zane²,

Bortolotto³

et al. 2005

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

High evolutionary potential of marine zooplankton

Peijnenburg

Goetze

2013

Ecology and Evolution

103

View full text Add to dashboard Cite

Open ocean zooplankton often have been viewed as slowly evolving species that have limited capacity to respond adaptively to changing ocean conditions. Hence, attention has focused on the ecological responses of zooplankton to current global change, including range shifts and changing phenology. Here, we argue that zooplankton also are well poised for evolutionary responses to global change. We present theoretical arguments that suggest plankton species may respond rapidly to selection on mildly beneficial mutations due to exceptionally large population size, and consider the circumstantial evidence that supports our inference that selection may be particularly important for these species. We also review all primary population genetic studies of open ocean zooplankton and show that genetic isolation can be achieved at the scale of gyre systems in open ocean habitats (100s to 1000s of km). Furthermore, population genetic structure often varies across planktonic taxa, and appears to be linked to the particular ecological requirements of the organism. In combination, these characteristics should facilitate adaptive evolution to distinct oceanographic habitats in the plankton. We conclude that marine zooplankton may be capable of rapid evolutionary as well as ecological responses to changing ocean conditions, and discuss the implications of this view. We further suggest two priority areas for future research to test our hypothesis of high evolutionary potential in open ocean zooplankton, which will require (1) assessing how pervasive selection is in driving population divergence and (2) rigorously quantifying the spatial and temporal scales of population differentiation in the open ocean.

show abstract

Population Genomics of Marine Zooplankton

Bucklin

DiVito

Smolina

et al. 2018

Population Genomics

Self Cite

View full text Add to dashboard Cite

The exceptionally large population size and cosmopolitan biogeographic distribution that distinguish many -but not all -marine zooplankton species generate similarly exceptional patterns of population genetic and genomic diversity and structure. The phylogenetic diversity of zooplankton has slowed the application of population genomic approaches, due to lack of genomic resources for closelyrelated species and diversity of genomic architecture, including highly-replicated genomes of many crustaceans. Use of numerous genomic markers, especially single nucleotide polymorphisms (SNPs), is transforming our ability to analyze population genetics and connectivity of marine zooplankton, and providing new understanding and different answers than earlier analyses, which typically used mitochondrial DNA and microsatellite markers. Population genomic approaches have confirmed that, despite high dispersal potential, many zooplankton species exhibit genetic structuring among geographic populations, especially at large ocean-basin scales, and have revealed patterns and pathways of population connectivity that do not always track ocean circulation. Genomic and transcriptomic resources are critically needed to allow further examination of micro-evolution and local adaptation, including identification of genes that show evidence of selection. These new tools will also enable further examination of the significance of small-scale genetic heterogeneity of marine zooplankton, to discriminate genetic "noise" in large and patchy populations from local adaptation to environmental conditions and change.

show abstract

Gene flow patterns of the euphausiid, Meganyctiphanes norvegica, in the NW Atlantic based on mtDNA sequences for cytochrome b and cytochrome oxidase I

Cited by 49 publications

References 48 publications

Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica

Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica

High evolutionary potential of marine zooplankton

Population Genomics of Marine Zooplankton

Contact Info

Product

Resources

About