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Template:Anthropology of kinship

Endogamy is the practice of marrying within a specific social group, religious denomination, caste, or ethnic group, rejecting those from others as unsuitable for marriage or other close personal relationships.

Endogamy is common in many cultures and ethnic groups. Several religious and ethnic religious groups are traditionally more endogamous, although sometimes with the added dimension of requiring marital religious conversion. This permits an exogamous marriage, as the convert, by accepting the partner's religion, becomes accepted within the endogamous rules. Endogamy, as distinct from consanguinity, may result in transmission of genetic disorders, the so-called founder effect, within the relatively closed community.


Endogamy can serve as a form of self-segregation; a community can use it to resist integrating and completely merging with surrounding populations. Minorities can use it to stay ethnically homogeneous over a long time as distinct communities within societies that have other practices and beliefs.

The isolationist practices of endogamy may lead to a group's extinction, as genetic diseases may develop that can affect an increasing percentage of the population. However, this disease effect would tend to be small unless there is a high degree of close inbreeding, or if the endogamous population becomes very small in size.

Social dynamics

The Urapmin, a small tribe in Papua New Guinea, practice strict endogamy. The Urapmin also have a system of kinship classes known as tanum miit. Since the classes are inherited cognatically, most Urapmin belong to all of the major classes, creating great fluidity and doing little to differentiate individuals.[1]

The small community on the South Atlantic island of Tristan da Cunha are, because of their geographical isolation, an almost endogamic society. There are instances of health problems attributed to endogamy on the island, including glaucoma and asthma as research by the University of Toronto has demonstrated.[2]


Endogamic marriage patterns may increase the frequency of various levels of cousin marriage in a population, and may cause high probability of children of first, second, third cousins, etcetera.

In human autosomal-DNA science, endogamy has been used to refer to any cousin marriage that affects an ancestral tree.[citation needed]

If a cousin marriage has accrued in a known ancestral tree of a person, in historical time, it is referred to as pedigree collapse. This may cause relations along multiple paths between a persons autosomal-DNA matches. It creates stronger DNA matches between the DNA matches than expected from the nearest path.[3]

Cousin marriage should not be confused with double cousins, which do not cause a pedigree collapse. Certain levels of sibling marriage and cousin marriage is prevented by law in some countries, and referred to as consanguinity.

A long term pattern of endogamy in a region may increase the risk of repeated cousin marriage during a long period of time, referred to as inbreeding. It may cause additional noise in the DNA autosomal data, giving the impressions that DNA matches with roots in that region are more closely related than they are.


Other examples of ethnic and religious groups that practice endogamy include:

See also

Cousin marriage:

Marriage systems:


  1. Robbins, Joel (2004). Becoming Sinners: Christianity and Moral Torment in a Papua New Guinea Society. University of California Press. pp. 191–192. ISBN 0-520-23800-1.
  2. "Worldwide search for asthma clue". BBC News. 9 December 2008. Archived from the original on 23 November 2011. Retrieved 15 March 2012.
  3. "Endogamy Part 1: Exploring Shared DNA | Legacy Tree Genealogists". 13 October 2016.
  4. Ruder, Katherine 'Kate' (23 July 2004). "Genomics in Amish Country". Genome News Network.
  5. Dr. Joseph Adebayo Awoyemi (14 September 2014). Pre-marital Counselling In a Multicultural Society. pp. 75–. ISBN 978-1-291-83577-9.
  6. Waters, Bella (2009). Armenia in Pictures. Minneapolis, MN: Learner Publishing Group. p. 25. ISBN 9780822585763.
  7. Chatty, Dawn (15 March 2010). Displacement and Dispossession in the Modern Middle East. Cambridge University Press. ISBN 978-0-521-81792-9.
  8. Gay y Blasco, Paloma. "Gitano Evangelism: the Emergence of a Politico-Religious Diaspora" (PDF). Index of working papers. Retrieved 3 February 2020.
  9. Kiddushin 68b
  10. Epstein, Jerome M. (29 October 2020). "Endogamy is a mitzvah". Jewish Standard.{{cite web}}: CS1 maint: url-status (link)
  11. Qamar et al. 2002, p. 1119.
  12. Fischer, R. J. (1997). "Castes and Caste Relationships". If Rain Doesn't Come. Manohar Publishers and Distributors. pp. 53ff. ISBN 978-8173041846.
  13. García Martínez, Adolfo (2009) [1988]. Los vaqueiros de alzada de Asturias: un estudio histórico-antropológico (Second edition)[in Spanish]. Oviedo: KRK Ediciones. p.746-748. ISBN 978-8-483-67229-7.
  14. Açikyildiz, Birgül (23 December 2014). The Yezidis: The History of a Community, Culture and Religion. I.B.Tauris. ISBN 9780857720610.
  15. Gidda, Mirren. "Everything You Need to Know About the Yazidis". Time. Retrieved 7 February 2016.

External links

Template:Types of marriages