Gen

Populations Genetics, genetic genealogy, etc.


Genetic Genealogy DTC DNA-Tests overview 2024   Recently updated !

Update May 2024 Find relatives (autosomal & X-DNA) Statistically, every individual inherits at least one DNA segment from each of their great-great-grandparents (4th generation, 16 ancestors). Beginning with the 5th generation the genetic ancestors diminish: 8th generation 220/256 ancestors, 16th generation 1018/65536 ancestors (Source Bob Jenkins, see also Anzahl genetische Vorfahren…). This means that it […]


A new decade of Genetic Genealogy: saturated growth and other concerns

In the last twenty years we have seen the rise of genetics as a tool for genealogists. First companies like FamilyTreeDNA (FTDNA), Sorenson Molecular Genealogy Foundation (SMGF) and Ancestry made it possible for private customers to buy DTC kits and initially get very low-res results for Y-DNA and mtDNA. The buildup of the matching databases […]


Citizen science analysis of Ashkenazi Y-chromosome haplogroups 4

Recently Wim Penninx posted in the ISOGG Facebook group about his analysis of the known Y-DNA ancestors of Ashkenazi Jews (from where did they arrive in the area of the kingdom of Poland and the Polish-Lithuanian Commonwealth). The first quick look revealed a pearl of citizen science using a large collection of Direct to Consumer […]


Online Course BioInformatics Genetic Data Handling

I hope I can finish this one: ONLINE COURSE BIOINFORMATICS This one sounds interesting for citizen science gen. genealogists wanting to follow newest developments: https://www.coursera.org/course/bioinfomethods1 Week 1: NCBI/Blast I Week 2: Blast II/Comparative Genomics Week 3: Multiple Sequence Alignments Week 4: Phylogenetics Week 5: Selection Analysis Week 6: ‘Next Gen’ Sequence Analysis (RNA-seq) / Metagenomics


Handling big DNA data (genetic files)

I already have some experience with R-Language from DIY Dodecad. I was interested to learn more: A comparison of bioinformatics programming languages http://tolstoy.newcastle.edu.au/R/help/04/06/0388.html https://de.wikipedia.org/wiki/GNU_Octave https://de.wikipedia.org/wiki/Mathematica https://de.wikipedia.org/wiki/MATLAB Learning R: http://socserv.mcmaster.ca/jfox/Misc/Rcmdr/ https://www.coursera.org/course/compdata