The Balkans are known to have a high level of biodiversity and endemism. No less than 15 taxa have been recorded in salmonids of the Salmo genus. This is the first comprehensive survey of all streams located within the Macro Prespa Basin, encompassing the whole taxon range. A large genetic sample of Prespa trout was collected mainly between and
Microsatellite loci development and population genetics in Neotropical fish Curimata mivartii Characiformes: Abstract The Curimatidae family plays an ecological role in the recycling and distribution of nutrients and constitutes a major food source for several commercially important fishes.
Since population genetics and species-specific molecular tools remain unknown for all members of the Curimatidae family, this study developed a set of microsatellite loci and studied the population genetics of C.
The results showed high levels of genetic diversity and evidence of gene flow even between locations separated over km. This information provides a baseline for designing conservation and management programs for C.
Introduction The Curimatidae Pisces: Characiformes family encompasses eight genera and approximately species that present a wide distribution in the freshwater environments of the cis- and trans-Andean basins of South America Melo et al.
This is the fourth most diverse family of the Characiformes order, and its members have been increasing in number over the last 20 years due to the discovery and introduction of new species Melo et al.
Although their commercial importance is limited to the subsistence fisheries and ornamental species trade, these detritivorous, benthopelagic and migratory species contribute to the recycling and redistribution of nutrients Alvarenga et al.
Additionally, they represent higher percentages of biomass, providing food to birds and a large variety of fishes, particularly economically important catfish species, that support the nutritional safety of the riverside communities Lasso et al.
It is the largest Colombian trans-Andean species of the genus approximately 35 cm and has a short-distance migration range approximately It forms great shoals and uses floodplain lakes as habitats for nourishment, refuge and larval development Lasso et al.
Photography of Curimata mivartii, a freshwater fish endemic to Colombia. Additionally, biological information about the species is scarce and the population genetics is unknown for all members of the Curimatidae family, which limits the design of appropriate conservation and management programs.
In contrast, population genetics studies have been performed on members of the phylogenetically related family, Prochilodontidae Melo et al. Given the genetic structure of Prochilodontidae populations and the short-distance migration described for C.
To test this hypothesis, this study developed a set of primers for microsatellite loci amplification and evaluated the genetic diversity and structure of C. Materials and Methods This study analyzed a total of muscle tissues of C.
The study area includes floodplains of the Andean Magdalena-Cauca basin that present riverbeds with an upper width of m, low velocities, rock shards and fine sediments. This area comprises a group of floodplain lakes, which are the principal habitats of C.
Sampling collection was performed from to by Integral S. The first group of samples was collected from the Cauca river Fig. The second group of samples was collected from the Magdalena river Fig.
Among them, the Prespa trout is found in only four river systems flowing into Lake Macro Prespa, three in the Former Yugoslav Republic of Macedonia and one in Greece. This is the first comprehensive survey of all streams located within the Macro Prespa Basin, encompassing the whole taxon range. A total of minnows were genotyped for 11 microsatellites, and the observed individual level of heterozygosity ranged between and , with the overall mean for all fish. The population level heterozygosity (N = 43 populations) ranged from (Møsvatn) to (Birisjøen). observed alleles was Ots in Iranian stock and Otsg in Ferench stock. The maximum and the minimum of expected heterozygosity was calculated and and observed .
The average number of alleles per locus and the polymorphism information content PIC for each marker were calculated respectively using GenAlEx v.
The average number of alleles per locus, observed HO and expected HE average heterozygosities and fixation index were calculated to estimate the genetic diversity of C. The sequential Bonferroni correction was applied to adjust the statistical significance in multiple comparisons Rice, Genetic differences were detected among the brook trout at Isle Royale, Lake Nipigon, and the Minnesota tributaries of Lake Superior.
Further, the population in Tobin Harbor at the eastern end of Isle Royale was distinct from the populations from tributaries at the southwestern end of the island. GENETIC DIFFERENTIATION AMONG LAKE TROUT STRAINS TABLE 1.—Sample names, abbreviations, and origins of lake trout analyzed electrophorelically.
The percentage of Lake Ontario stocking is given for only a single year class when the sample abbreviation designates a . View Lab Report - A comparison of the heterozygosity of Loughborough and Devil from BIOL at Queens University. A comparison of the heterozygosity of Loughborough and Devil Lake trout Iman Atabani%(9).
The simplification that the probability of heterozygosity was the same for all individuals in a population makes easier the algebraic analysis but it is an unreal assumption that leads to . sively high observed heterozygosity and deviations from Hardy–Weinberg propor tions.
We identiﬁed candidate spe- cies-speciﬁc SNPs from a single Illumina sequencing lane cont aining 24 barcode-labelled individuals. AN ELECTROPHORETIC ANALYSIS OF GENETIC DIFFERENTIATION trout from Yellowstone Lake collected during a spawning run in Pelican Creek; and 3) a thermally isolated population of large-spotted cutthroat trout ing the expected heterozygote frequency from the observed allele frequencies.