Discriminating glacial races of burbot (<i>Lota lota</i>) by means of PCR‐RF‐SSCP (PRS) analysis of the mitochondrial control region

Houdt, J. K. J. Van; Cleyn, L. De; Perretti, Adriana Rodrigues; Volckaert, Filip

doi:10.1111/j.1471-8286.2006.01268.x

Cited by 2 publications

(2 citation statements)

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“…The other form, L. l. lota , comprises the remainder of the Nearctic range and the entire Eurasian range. Van Houdt et al. (2003, 2006) found three mitochondrial DNA clades of L .…”

Section: Introductionmentioning

confidence: 99%

Worldwide status of burbot and conservation measures

et al. 2010

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Although burbot (Lota lota Gadidae) are widespread and abundant throughout much of their natural range, there are many populations that have been extirpated, endangered or are in serious decline. Due in part to the species’ lack of popularity as a game and commercial fish, few regions consider burbot in management plans. We review the worldwide population status of burbot and synthesize reasons why some burbot populations are endangered or declining, some burbot populations have recovered and some burbot populations do not recover despite management measures. Burbot have been extirpated in much of Western Europe and the United Kingdom and are threatened or endangered in much of North America and Eurasia. Pollution and habitat change, particularly the effects of dams, appear to be the main causes for declines in riverine burbot populations. Pollution and the adverse effects of invasive species appear to be the main reasons for declines in lacustrine populations. Warmer water temperatures, due either to discharge from dams or climate change, have been noted in declining burbot populations at the southern extent of their range. Currently, fishing pressure does not appear to be limiting burbot populations world‐wide. We suggest mitigation measures for burbot population recovery, particularly those impacted by dams and invasive species.

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“…The other form, L. l. lota , comprises the remainder of the Nearctic range and the entire Eurasian range. Van Houdt et al. (2003, 2006) found three mitochondrial DNA clades of L .…”

Section: Introductionmentioning

confidence: 99%

Worldwide status of burbot and conservation measures

et al. 2010

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“…The reactions were performed bidirectionally and products were analysed on an automatic sequencer LI-COR GeneReadIR DNA system (LI-COR). Third, we used a combination of single-strand conformation polymorphisms (SSCP) and endonuclease digestion to detect sequence variation in the 450 bp fragment of the mitochondrial control region, according to the methodology described in Van Houdt et al (2006).…”

Section: Genetic Data Collectionmentioning

confidence: 99%

Population genetic structure of North American burbot (Lota lota maculosa) across the Nearctic and at its contact zone with Eurasian burbot (Lota lota lota)

Elmer

Houdt

Meyer

et al. 2008

Can. J. Fish. Aquat. Sci.

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Abstract:The burbot, Lota lota (Teleostei: Gadidae), has a holarctic distribution, with one subspecies (Lota lota lota) living in the lakes and rivers of the Palaearctic and northwestern North America and the other (Lota lota maculosa) living in the Nearctic (except the northwest). We analysed nine microsatellite loci and the mitochondrial DNA control region of 350 burbot sampled across North America to develop a continent-wide understanding of population differentiation following postglacial recolonization. Using mitochondrial DNA, we identify three subclades of L. l. maculosa: one is widespread, one is moderately well distributed, and the third is restricted to the southwest. Lota l. lota is restricted to Yukon and Alaska. Microsatellite loci show moderate levels of genetic diversity and high population differentiation throughout North America (R st 0.9). Lota l. maculosa and L. l. lota mtDNA lineages only co-occur appreciably in Great Slave Lake. An individual-based Bayesian approach to detect genotypic admixture indicates that very few of all individuals show signs of admixture between subspecies, and those individuals are restricted to Great Slave Lake and Lake Laberge.Résumé : L'aire de répartition de la Lotte, Lota lota (Teleostei : Gadidae), est circumpolaire avec une sous-espèce (Lota lota lota) vivant dans les lacs et rivières du paléarctique et le nord-ouest de l'Amérique du Nord, et l'autre sous-espèce (Lota lota maculosa) vivant dans le néarctique (sauf le nord-ouest). Nous avons analysé neuf microsatellites marqueurs gé-nétiques et l'ADN mitochondrial (région de contrôle) des Lottes. Les échantillons nord-américains on été prélevés afin de comprendre la différenciation génétique de la population à traver tout le continent suite à la colonisation post-glaciaire. L'ADNmt identifie trois clades génétiques dans L. l. maculosa : une clade est très répandue, une autre est distribuée modéré-ment, et la troisième se retrouve seulement dans la région du sud-ouest. Lota l. lota se retrouve seulement dans les territoires du Yukon et Alaska. Les marqueurs microsatellites montrent un niveau moyen en diversité génétique mais une différencia-tion génétique élevée entre populations à travers l'Amérique du Nord (R st 0,9). Les lignées ADNmt de L. l. maculosa et L. l. lota coexistent seulement dans le Grand lac des Esclaves. Une approche Bayesianne, basée sur les individus, dans le but de détecter le mélange génétypique, indique que peu des Lottes montrent un brassage génétique entre sous-espèces; ils se retrouvent seulement dans le Grand Lac des Esclaves et Lac Laberge.

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Discriminating glacial races of burbot (Lota lota) by means of PCR‐RF‐SSCP (PRS) analysis of the mitochondrial control region

Cited by 2 publications

References 14 publications

Worldwide status of burbot and conservation measures

Worldwide status of burbot and conservation measures

Population genetic structure of North American burbot (Lota lota maculosa) across the Nearctic and at its contact zone with Eurasian burbot (Lota lota lota)

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