0000000000190118

AUTHOR

K. E. Knott

showing 4 related works from this author

Variation in the COI gene of the freshwater pearl mussel Margaritifera margaritifera from River Vuokkijoki

2017

The freshwater pearl mussel Margaritifera margaritifera L. is one of the most endangered freshwater mussels in the world. Effective conservation of threatened species requires not only ecological, but also genetic information from the target species and populations. Since low genetic diversity can reduce the ability of a species to adapt to environmental changes, maintaining genetic diversity has been identified as one of the key elements in successful conservation programs. We examined genetic variation of the freshwater pearl mussel from the River Vuokkijoki, Karelia, Russia. We sequenced a fragment of the cytochrome c oxidase subunit I gene (COI) from 22 individuals and compared the data…

0106 biological sciences0301 basic medicinehaplotypescytochrome c oxidase subunit I gene (COI)PopulationEndangered species010603 evolutionary biology01 natural sciencesGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciencesfreshwater pearl musselGenetic variationeducationMargaritiferaVuokkijokieducation.field_of_studyGenetic diversitybiologyEcologyCytochrome c oxidase subunit Ifungigenetic diversitybiology.organism_classification030104 developmental biologyMargaritifera margaritiferaFreshwater pearl musselThreatened speciesta1181General Agricultural and Biological Sciences
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Primers for nine microsatellite loci in the hermaphroditic snailLymnaea stagnalis

2003

Variation in and amplification conditions for nine polymorphic microsatellite loci identified from Lymnaea stagnalis , a hermaphroditic pulmonate snail, are described. Eight populations from central Finland were studied, which varied in terms of both observed polymorphism and heterozygosity. The number of alleles at each locus is moderate (two to seven), except for one exceptional locus having 16 alleles, and for which null alleles are possible. There is no evidence for genotypic disequilibrium in the populations for all pairs of loci. Heterozygosity levels are indicative of outcrossing in L. stagnalis , whose mating system will be characterized further using these markers.

GeneticsEcologybiologySelfingLocus (genetics)Lymnaea stagnalisbiology.organism_classificationBiochemistryNull alleleGeneral Biochemistry Genetics and Molecular BiologyLoss of heterozygosityGenotypeMicrosatelliteAlleleMolecular Ecology Notes
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The benefits of interpopulation hybridization diminish with increasing divergence of small populations.

2012

Interpopulation hybridization can increase the viability of small populations suffering from inbreeding and genetic drift, but it can also result in outbreeding depression. The outcome of hybridization can depend on various factors, including the level of genetic divergence between the populations, and the number of source populations. Furthermore, the effects of hybridization can change between generations following the hybridization. We studied the effects of population divergence (low vs. high level of divergence) and the number of source populations (two vs. four source populations) on the viability of hybrid populations using experimental Drosophila littoralis populations. Population v…

MaleReproductive IsolationTime FactorsOutbreeding depressionPopulationPopulation DynamicsBiologyExtinction BiologicalGenetic driftInbreeding depressionAnimalsInbreedingSelection GeneticeducationEcology Evolution Behavior and SystematicsPopulation Densityeducation.field_of_studyEcologySmall population sizeReproductive isolationAdaptation PhysiologicalGenetic divergenceFertilityEvolutionary biologyHybridization GeneticDrosophilaFemaleInbreedingJournal of evolutionary biology
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Data from: The benefits of interpopulation hybridization diminish with increasing divergence of small populations

2012

Interpopulation hybridization can increase the viability of small populations suffering from inbreeding and genetic drift, but it can also result in outbreeding depression. The outcome of hybridization can depend on various factors, including the level of genetic divergence between the populations, and the number of source populations. Furthermore, the effects of hybridization can change between generations following the hybridization. We studied the effects of population divergence (low vs. high level of divergence) and the number of source populations (two vs. four source populations) on the viability of hybrid populations using experimental Drosophila littoralis populations. Population v…

medicine and health caregenetic rescueDrosophila littoralisLife SciencesMedicineInbreeding
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