Abbreviations

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This is a list of abbreviations used in genetic genealogy. Abbreviations can be used as shortcuts for navigation on the ISOGG Wiki. If you type in any of the abbreviations on this list for which there is a Wiki article you will automatically be redirected to the relevant Wiki page.

Contents
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

  • AAGRA - Australasian Association of Genealogists and Record Agents
  • aDNA - Ancient DNA
  • AGRA - Association of Genealogists and Researchers in Archives (UK)
  • AIMs - Ancestry-Informative Markers
  • AJ - Ashkenazi Jew
  • AMH - Atlantic Modal Haplotype (see Western Atlantic Modal Haplotype) or anatomically modern human
  • APG - Association of Professional Genealogists (US and worldwide)
  • ARG - Ancestral recombination graph
  • ASHG - American Society of Human Genetics
  • AtDNA - Autosomal DNA

B

C

D

E

F

G

  • GAP – Group administrator page. This is the name given by Family Tree DNA to the special pages used by group administrators to administer their DNA projects.
  • GEDCOM - GEnealogical Data COMmunication. A method of exchanging genealogical information in a standard file format
  • GB - Great Britain (comprising the countries of England, Scotland and Wales)
  • Gb - Gigabase
  • Gbp - Gigabase pair
  • GOONS - Guild of One-Name Studies
  • GRO - General Record Office (England and Wales)
  • GROS - General Record Office Scotland
  • GWAS - Genome wide association studies

H

  • HBD - Human biodiversity or homozygosity by descent
  • HGP - Human Genome Project
  • HIR - Half-identical region
  • HTS - High throughput sequencing
  • HUGO – Human Genome Organisation
  • HVR – Hyper-variable region. The sections of non-coding mitochondrial DNA that are used for low-resolution genealogical DNA testing.
  • 'HWE - Hardy-Weinberg equilibrium

I

J

K

  • Kb - Kilobase
  • Kbp - Kilobase pair
  • KYA - Thousand years ago

L

  • LCA - Lowest common ancestor
  • LCN - Low copy number
  • LD - Linkage disequilibrium
  • LDS - Latter-day Saints (The Church of Jesus Christ of the Latter-day Saints)
  • LGM - Last glacial maximum
  • LHON - Leber's hereditary optic atrophy (a mitochondrial DNA disease)
  • LHP - Length heteroplasmy
  • LoH - Loss of heterozygosity
  • LTR - Long terminal repeat

M

N

O

P

R

  • RAO - Recent ancestral origins (formerly known as REO - recent ethnic origins). The number of matches you have in Family Tree DNA's database as specified by country or region. To access the RAO, Family Tree DNA customers need to click the tab on their "My FTDNA" page.
  • RG - Relative Genetics, a commercial DNA testing company. (Acquired by Ancestry.com in summer 2007).
  • rCRS - Revised Cambridge Reference Sequence
  • RecLOH - Acronym for Recombinant Loss of Heterozygosity
  • ROH - Runs of homozygosity. ROH are regions of the genome where an individual inherits the same alleles from both parents. The alleles are identical because our parents have inherited them from a common ancestor at some point in the past or more recently through a cousin marriage.
  • RSRS - Reconstructed Sapiens Reference Sequence, the deduced ancestral mitochondrial sequence.

S

T

  • TG - Triangulated group. Previously used as an abbreviation for the now defunct company Trace Genetics.
  • TiP – See FTDNATiP above
  • TMRCA - Time to the most recent common ancestor
  • TNA - The National Archives (UK)

U

V

  • VCF - Variant call file
  • VR - Vital records (birth, marriage and death records)

W

Y

See also