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- Andres, Olga, et al.
(författare)
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A microarray system for Y chromosomal and mitochondrial single nucleotide polymorphism analysis in chimpanzee populations
- 2008
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Ingår i: Molecular Ecology Notes. - : Wiley. - 1471-8278 .- 1471-8286 .- 1755-098X .- 1755-0998. ; 8:3, s. 529-539
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Tidskriftsartikel (refereegranskat)abstract
- Chimpanzee populations are diminishing as a consequence of human activities, and as a result this species is now endangered. In the context of conservation programmes, genetic data can add vital information, for instance on the genetic diversity and structure of threatened populations. Single nucleotide polymorphisms (SNP) are biallelic markers that are widely used in human molecular studies and can be implemented in efficient microarray systems. This technology offers the potential of robust, multiplexed SNP genotyping at low reagent cost in other organisms than humans, but it is not commonly used yet in wild population studies. Here, we describe the characterization of new SNPs in Y-chromosomal intronic regions in chimpanzees and also identify SNPs from mitochondrial genes, with the aim of developing a microarray system that permits the simultaneous study of both paternal and maternal lineages. Our system consists of 42 SNPs for the Y chromosome and 45 SNPs for the mitochondrial genome. We demonstrate the applicability of this microarray in a captive population where genotypes accurately reflected its large pedigree. Two wild-living populations were also analysed and the results show that the microarray will be a useful tool alongside microsatellite markers, since it supplies complementary information about population structure and ecology. SNP genotyping using microarray technology, therefore, is a promising approach and may become an essential tool in conservation genetics to help in the management and study of captive and wild-living populations. Moreover, microarrays that combine SNPs from different genomic regions could replace microsatellite typing in the future.
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| 4. |
- Rönn, Ann-Charlotte, et al.
(författare)
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Multiple displacement amplification for generating an unlimited source of DNA for genotyping in nonhuman primate species
- 2006
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Ingår i: International journal of primatology. - : Springer Science and Business Media LLC. - 0164-0291 .- 1573-8604. ; 27:4, s. 1145-1169
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Tidskriftsartikel (refereegranskat)abstract
- We evaluated a whole genome amplification method-multiple displacement amplification (MDA)-as a means to conserve valuable nonhuman primate samples. We tested 148 samples from a variety of species and sample sources, including blood, tissue, cell-lines, plucked hair and noninvasively collected semen. To evaluate genotyping success and accuracy of MDA, we used routine genotyping methods, including short tandem repeat (STR) analysis, denaturing gradient gel electrophoresis (DGGE), Alu repeat analysis, direct sequencing, and nucleotide detection by tag-array minisequencing. We compared genotyping results from MDA products to genotypes generated from the original (non-MD amplified) DNA samples. All genotyping methods showed good results with the MDA products as a DNA template, and for some samples MDA improved genotyping success. We show that the MDA procedure has the potential to provide a long-lasting source of DNA for genetic studies, which would be highly valuable for the primate research field, in which genetic resources are limited and for other species in which similar sampling constraints apply.
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