The landscape genetics of yellow perch (<i>Perca flavescens</i>) in a large fluvial ecosystem

Leclerc, Émilie; Mailhot, Y.; Mingelbier, Marc; Bernatchez, Louis

doi:10.1111/j.1365-294x.2008.03710.x

Cited by 91 publications

(89 citation statements)

References 65 publications

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“…Further tests indicated that heterozygote deficiency at these loci was responsible for the departure (see Table 1). Another possible explanation for the departure from Hardy-Weinberg equilibrium is the dramatic contemporary decline in populations and resulting non-random mating and genetic bottlenecks (Brown et al, 2007;Leclerc et al, 2008). The paternity exclusion power was estimated at 0.8319 for all loci.…”

Section: Resultsmentioning

confidence: 99%

Development and characterization of DNA microsatellite primers for buriti (Mauritia flexuosa L.f.)

Menezes

Souto²,

Ciampi³

et al. 2012

Genet. Mol. Res.

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ABSTRACT. Mauritia flexuosa L. (Arecaceae) is a palm tree species known as buriti that occurs in the Cerrado biome. It is characteristic of the vereda, a typical ecosystem of central Brazil. In this phytophysiognomy, M. flexuosa and other groups of arboreal-herbaceous species develop in open fields with very humid soils. M. flexuosa can be found in forest borders and is a palm tree with a wide distribution in South America (Brazil, Colombia, Venezuela, French Guyana Ecuador, Peru, and Bolivia). The main objectives of this study were to develop simple sequence repeat marker-enriched libraries and to characterize these loci in buriti palm to facilitate future population studies. A total of 40 sequences derived from the microsatellite-enriched libraries were selected for primer design. The optimization results showed that 9 primer pairs could successfully amplify polymorphic target fragments of the expected sizes. The data also show that the described primers Development of microsatellite primers for buriti can be used in population genetic studies in M. flexuosa to obtain information that will inform conservation and management strategies.

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Section: Resultsmentioning

confidence: 99%

Development and characterization of DNA microsatellite primers for buriti (Mauritia flexuosa L.f.)

Menezes

Souto²,

Ciampi³

et al. 2012

Genet. Mol. Res.

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“…However, recent advances in molecular ecology and landscape genetics promise to improve our understanding of dispersal and gene flow in natural populations. These approaches allow us to get a better understanding of the real limits of populations and enable us to identify how different landscape elements interact with individual behavior to determine gene flow patterns and population structure (Vaha et al 2007;Dionne et al 2008;Kittlein and Gaggiotti 2008;Lada et al 2008;Leclerc et al 2008;Hurston et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Population structure and landscape genetics in the endangered subterranean rodent Ctenomys porteousi

et al. 2011

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In order to devise adequate conservation and management strategies for endangered species, it is important to incorporate a reliable understanding of its spatial population structure, detecting the existence of demographic partitions throughout its geographical range and characterizing the distribution of its genetic diversity. Moreover, in species that occupy fragmented habitats it is essential to know how landscape characteristics may affect the genetic connectivity among populations. In this study we use eight microsatellite markers to analyze population structure and gene flow patterns in the complete geographic range of the endangered rodent Ctenomys porteousi. Also, we use landscape genetics approaches to evaluate the effects of landscape configuration on the genetic connectivity among populations. In spite of geographical proximity of the sampling sites (8-27 km between the nearest sites) and the absence of marked barriers to individual movement, strong population structure and low values of gene flow were observed. Genetic differentiation among sampling sites was consistent with a simple model of isolation by distance, where peripheral areas showed higher population differentiation than those sites located in the central area of the species' distribution. Landscape genetics analysis suggested that habitat fragmentation at regional level has affected the distribution of genetic variation among populations. The distance of sampling sites to areas of the landscape having higher habitat connectivity was the environmental factor most strongly related to population genetic structure. In general, our results indicate strong genetic structure in C. porteousi, even at a small spatial scale, and suggest that habitat fragmentation could increase the population differentiation.

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“…The strength of each of these barriers was quantified from the number of loci supporting the barrier. For each separate species, we differentiated between barriers supported by more or less than half of the loci as suggested by LeClerc et al (2008).…”

Section: Areas Of Genetic Discontinuitiesmentioning

confidence: 99%

Genetic biodiversity in the Baltic Sea: species-specific patterns challenge management

et al. 2013

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Information on spatial and temporal patterns of genetic diversity is a prerequisite to understanding the demography of populations, and is fundamental to successful management and conservation of species. In the sea, it has been observed that oceanographic and other physical forces can constitute barriers to gene flow that may result in similar population genetic structures in different species. Such similarities among species would greatly simplify management of genetic biodiversity. Here, we tested for shared genetic patterns in a complex marine area, the Baltic Sea. We assessed spatial patterns of intraspecific genetic diversity and differentiation in seven ecologically important species of the Baltic ecosystem-Atlantic herring (Clupea harengus), northern pike (Esox lucius), European whitefish (Coregonus lavaretus), three-spined stickleback (Gasterosteus aculeatus), nine-spined stickleback (Pungitius pungitius), blue mussel (Mytilus spp.), and 123Biodivers Conserv ( ) 22:3045-3065 DOI 10.1007 bladderwrack (Fucus vesiculosus). We used nuclear genetic data of putatively neutral microsatellite and SNP loci from samples collected from seven regions throughout the Baltic Sea, and reference samples from North Atlantic areas. Overall, patterns of genetic diversity and differentiation among sampling regions were unique for each species, although all six species with Atlantic samples indicated strong resistence to Atlantic-Baltic gene-flow. Major genetic barriers were not shared among species within the Baltic Sea; most species show genetic heterogeneity, but significant isolation by distance was only detected in pike and whitefish. These species-specific patterns of genetic structure preclude generalizations and emphasize the need to undertake genetic surveys for species separately, and to design management plans taking into consideration the specific structures of each species.

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The landscape genetics of yellow perch (Perca flavescens) in a large fluvial ecosystem

Cited by 91 publications

References 65 publications

Development and characterization of DNA microsatellite primers for buriti (Mauritia flexuosa L.f.)

Development and characterization of DNA microsatellite primers for buriti (Mauritia flexuosa L.f.)

Population structure and landscape genetics in the endangered subterranean rodent Ctenomys porteousi

Genetic biodiversity in the Baltic Sea: species-specific patterns challenge management

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