Assessing genetic diversity of domestic populations of channel catfish (Ictalurus punctatus) in Alabama using AFLP markers

Mickett, Kathryn; Morton, Cynthia M.; Feng, Jinian; Li, P.; Simmons, Micah; Cao, Dongfeng; Dunham, Rex A.; Liu, Z.

doi:10.1016/s0044-8486(03)00311-9

Cited by 77 publications

(47 citation statements)

References 20 publications

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“…Mickett et al (2003) have suggested that the F ST (genetic differences among population) in channel catfish (0.4456) indicates a high degree of genetic differentiation, whereas Yue et al (2004) have reported moderate genetic differentiation in Asian arowana, with a G ST of 0.047. In our study, F ST averaged over all polymorphic loci was 0.4186, which is similar to the result reported by Mickett et al (2003). This value indicates a high degree of genetic differentiation among the 6 populations.…”

Section: Discussionmentioning

confidence: 99%

“…AFLP is highly reliable for the assessment of genetic variation among and within populations (Maheswaran et al, 1997). AFLP has been widely applied to study genotyping, population differentiation, and genetic diversity in a wide variety of organisms, such as catfish (Mickett et al, 2003), tilapia (Agrestia et al, 2000), and penaeid shrimp (Wang et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Genetic diversity among red swamp crayfish (Procambarus clarkii) populations in the middle and lower reaches of the Yangtze River based on AFLP markers

Zhu¹,

Huang²,

Dai³

et al. 2013

Genet. Mol. Res.

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ABSTRACT. The red swamp crayfish has become one of the most important freshwater aquaculture species in China. At present, although it is widely distributed in the middle and lower reaches of the Yangze River basin, little is known about its population genetics and geographic distribution in China. We estimated the genetic diversity among 6 crayfish populations from 4 lakes (Hongze Lake, Poyang Lake, Dongting Lake, and Yue Lake) using AFLPs. A total of 129 loci were generated with 5 EcoRI-MseI primer combinations and scored as binary data in 139 individuals. These data were analyzed by cluster methods with the NTSYSpc software package. The 6 populations were separated into 3 major clusters by principal coordinate analysis and cluster analysis. Among the 6 populations, the highest gene diversity was found within the Nanjing population. Analysis of molecular variance demonstrated that most variation occurred within populations (91.20%). The estimated average G ST value across all loci was 0.4186, suggesting (very) low gene flow among the different localities. We conclude that there is high genetic differentiation among crayfish in the middle and lower reaches of the Yangze River. This information will help in the selection of highquality individuals for artificial reproduction.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Genetic diversity among red swamp crayfish (Procambarus clarkii) populations in the middle and lower reaches of the Yangtze River based on AFLP markers

Zhu¹,

Huang²,

Dai³

et al. 2013

Genet. Mol. Res.

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“…In the final step, the amplified fragments are separated in a high-resolution gel on which band analysis is performed (Vos et al, 1995). AFLP has often been used to assess the genetic diversity of captive fish populations (Mickett et al, 2003) as well as the identification of sex-linked markers (Felip et al, 2005) and hybrid species (Tranah et al, 2003). Anonymous DNA sequences have also been PCR amplified through RAPD and can detect a high degree of polymorphism (Welsh and McClelland, 1990;Williams et al, 1990).…”

Section: Molecular Tools For Conservation Geneticsmentioning

confidence: 99%

Contribution of conservation genetics in assessing neotropical freshwater fish biodiversity

Piorski¹,

Sanches

Costa

et al. 2008

Braz. J. Biol.

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Human activities have a considerable impact on hydrographic systems and fish fauna. The present review on conservation genetics of neotropical freshwater fish reveals that DNA analyses have been promoting increased knowledge on the genetic structure of fish species and their response to environmental changes. This knowledge is fundamental to the management of wild fish populations and the establishment of Evolutionary Significant Units capable of conserving genetic integrity. While population structuring can occur even in long-distance migratory fish, isolated populations can show reduced genetic variation and be at greater risk of extinction. Phylogeography and phylogeny have been powerful tools in understanding the evolution of fish populations, species and communities in distinct neotropic environments. Captive fish can be used to introduce new individuals and genes into the wild and their benefits and disadvantages can be monitored through genetic analysis. Understanding how fish biodiversity in neotropical freshwaters is generated and maintained is highly important, as these habitats are transformed by human development and fish communities are increasingly exploited as food sources to sustain a growing human population.Keywords: molecular genetics, fish population, biology conservation. Contribuição da Genética da Conservação para o conhecimento da biodiversidade dos peixes de água doce neotropicais ResumoAtividades humanas têm um grande impacto sobre os sistemas hidrográficos e a fauna de peixes. A presente revisão em genética da conservação dos peixes de água doce neotropicais revela que as análises de DNA têm promovido um crescimento no conhecimento da estrutura genética das espécies e suas respostas às alterações ambientais. Este conhecimento é fundamental para o manejo das populações de peixes nativos e para o estabelecimento de Unidades Evolutivas Significantes capazes de conservar a integridade genética dessas populações. Enquanto o fenômeno de estruturação de populações pode ocorrer mesmo em peixes migradores de longas distâncias, populações isoladas podem mostrar reduzida variação genética e apresentar grande risco de extinção. Em adição, a filogeografia e a filogenia têm dado importantes contribuições para o entendimento da evolução das populações, espécies e comunidades de peixes em distintos ambientes neotropicais. Populações de cativeiro podem ser utilizadas como fonte de introdução de novos indivíduos e genes no ambiente natural e seus benefícios e desvantagens podem ser monitorados por meio de análises genéticas. É altamente importante, portanto, entender como é gerada e mantida a biodiversidade de peixes de água doce neotropicais, uma vez que os habitats são transformados pelo desenvolvimento humano e as comunidades de peixes têm sido intensamente exploradas como alimento de sustentação desse crescimento das populações humanas.Palavras-chave: genética molecular, populações de peixes, conservação biológica.

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“…The application of AFLP has progressed in Pisces species such as the giant mottled eel Anguilla marmorata (Ishikawa et al 2004), the channel catfish Ictalurus punctatus (Mickett et al 2003) and the gilthead sea bream Sparus auratus (Miggiano et al 2005). Recently, killifish (Fundulus heteroclitus), the same order as K. marmoratus, was successfully used in AFLP analysis to measure population differentiation and diversity (McMillan et al 2006).…”

Section: Methodsmentioning

confidence: 99%

Genetic and growth differences in the outcrossings between two clonal strains of the self-fertilizing mangrove killifish

et al. 2008

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Abstract:The only known self-fertilizing vertebrate Kryptolebias marmoratus (Poey, 1880) (Pisces: Rivulidae) populations usually consist of different homozygous lineages, however heterozygous individuals are found occasionally and ratios of homozygosity and heterozygosity in populations are dependent on the proportion of males. However, it is still unclear what impact male-mediated genetic diversity has on the phenotype of K. marmoratus. In order to clarify this, we attempted outcrossing between male and hermaphrodite of two different clonal strains with different life-history traits using artificial insemination, and examined the genotypes and growth of the hybrid F2 generation. We detected genetic differences between the two clonal strains using Amplified Fragment Length Polymorphism (AFLP) analysis with 3 primer combinations, and then obtained 11 AFLP markers.

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Assessing genetic diversity of domestic populations of channel catfish (Ictalurus punctatus) in Alabama using AFLP markers

Cited by 77 publications

References 20 publications

Genetic diversity among red swamp crayfish (Procambarus clarkii) populations in the middle and lower reaches of the Yangtze River based on AFLP markers

Genetic diversity among red swamp crayfish (Procambarus clarkii) populations in the middle and lower reaches of the Yangtze River based on AFLP markers

Contribution of conservation genetics in assessing neotropical freshwater fish biodiversity

Genetic and growth differences in the outcrossings between two clonal strains of the self-fertilizing mangrove killifish

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