Reconstructing recent human phylogenies with forensic STR loci: A statistical approach
<p>Abstract</p> <p>Background</p> <p>Forensic Short Tandem Repeat (STR) loci are effective for the purpose of individual identification, and other forensic applications. Most of these markers have high allelic variability and mutation rate because of which they have lim...
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| Format: | Article |
| Language: | English |
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BMC
2005-09-01
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| Series: | BMC Genetics |
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| Online Access: | http://www.biomedcentral.com/1471-2156/6/47 |
| _version_ | 1818160539593867264 |
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| author | Khan Faisal Agrawal Suraksha |
| author_facet | Khan Faisal Agrawal Suraksha |
| author_sort | Khan Faisal |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>Forensic Short Tandem Repeat (STR) loci are effective for the purpose of individual identification, and other forensic applications. Most of these markers have high allelic variability and mutation rate because of which they have limited use in the phylogenetic reconstruction. In the present study, we have carried out a meta-analysis to explore the possibility of using only five STR loci (TPOX, FES, vWA, F13A and Tho1) to carry out phylogenetic assessment based on the allele frequency profile of 20 world population and north Indian Hindus analyzed in the present study.</p> <p>Results</p> <p>Phylogenetic analysis based on two different approaches – genetic distance and maximum likelihood along with statistical bootstrapping procedure involving 1000 replicates was carried out. The ensuing tree topologies and PC plots were further compared with those obtained in earlier phylogenetic investigations. The compiled database of 21 populations got segregated and finely resolved into three basal clusters with very high bootstrap values corresponding to three geo-ethnic groups of African, Orientals, and Caucasians.</p> <p>Conclusion</p> <p>Based on this study we conclude that if appropriate and logistic statistical approaches are followed then even lesser number of forensic STR loci are powerful enough to reconstruct the recent human phylogenies despite of their relatively high mutation rates.</p> |
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| format | Article |
| id | doaj.art-14f81b093d46441c96f221cd86d386f9 |
| institution | Directory Open Access Journal |
| issn | 1471-2156 |
| language | English |
| last_indexed | 2024-12-11T16:03:29Z |
| publishDate | 2005-09-01 |
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| series | BMC Genetics |
| spelling | doaj.art-14f81b093d46441c96f221cd86d386f92022-12-22T00:59:16ZengBMCBMC Genetics1471-21562005-09-01614710.1186/1471-2156-6-47Reconstructing recent human phylogenies with forensic STR loci: A statistical approachKhan FaisalAgrawal Suraksha<p>Abstract</p> <p>Background</p> <p>Forensic Short Tandem Repeat (STR) loci are effective for the purpose of individual identification, and other forensic applications. Most of these markers have high allelic variability and mutation rate because of which they have limited use in the phylogenetic reconstruction. In the present study, we have carried out a meta-analysis to explore the possibility of using only five STR loci (TPOX, FES, vWA, F13A and Tho1) to carry out phylogenetic assessment based on the allele frequency profile of 20 world population and north Indian Hindus analyzed in the present study.</p> <p>Results</p> <p>Phylogenetic analysis based on two different approaches – genetic distance and maximum likelihood along with statistical bootstrapping procedure involving 1000 replicates was carried out. The ensuing tree topologies and PC plots were further compared with those obtained in earlier phylogenetic investigations. The compiled database of 21 populations got segregated and finely resolved into three basal clusters with very high bootstrap values corresponding to three geo-ethnic groups of African, Orientals, and Caucasians.</p> <p>Conclusion</p> <p>Based on this study we conclude that if appropriate and logistic statistical approaches are followed then even lesser number of forensic STR loci are powerful enough to reconstruct the recent human phylogenies despite of their relatively high mutation rates.</p>http://www.biomedcentral.com/1471-2156/6/47Short tandem repeatsForensicPhylogenyNeighbor-joiningMaximum likelihoodPC plot |
| spellingShingle | Khan Faisal Agrawal Suraksha Reconstructing recent human phylogenies with forensic STR loci: A statistical approach BMC Genetics Short tandem repeats Forensic Phylogeny Neighbor-joining Maximum likelihood PC plot |
| title | Reconstructing recent human phylogenies with forensic STR loci: A statistical approach |
| title_full | Reconstructing recent human phylogenies with forensic STR loci: A statistical approach |
| title_fullStr | Reconstructing recent human phylogenies with forensic STR loci: A statistical approach |
| title_full_unstemmed | Reconstructing recent human phylogenies with forensic STR loci: A statistical approach |
| title_short | Reconstructing recent human phylogenies with forensic STR loci: A statistical approach |
| title_sort | reconstructing recent human phylogenies with forensic str loci a statistical approach |
| topic | Short tandem repeats Forensic Phylogeny Neighbor-joining Maximum likelihood PC plot |
| url | http://www.biomedcentral.com/1471-2156/6/47 |
| work_keys_str_mv | AT khanfaisal reconstructingrecenthumanphylogenieswithforensicstrlociastatisticalapproach AT agrawalsuraksha reconstructingrecenthumanphylogenieswithforensicstrlociastatisticalapproach |